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tcl.m4 @ 684

Last change on this file since 684 was 444, checked in by satin@…, 7 years ago
add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
File size: 96.9 KB

Rev	Line
[444]	1	#------------------------------------------------------------------------
	2	# SC_PATH_TCLCONFIG --
	3	#
	4	# Locate the tclConfig.sh file and perform a sanity check on
	5	# the Tcl compile flags
	6	#
	7	# Arguments:
	8	# none
	9	#
	10	# Results:
	11	#
	12	# Adds the following arguments to configure:
	13	# --with-tcl=...
	14	#
	15	# Defines the following vars:
	16	# TCL_BIN_DIR Full path to the directory containing
	17	# the tclConfig.sh file
	18	#------------------------------------------------------------------------
	19
	20	AC_DEFUN([SC_PATH_TCLCONFIG], [
	21	#
	22	# Ok, lets find the tcl configuration
	23	# First, look for one uninstalled.
	24	# the alternative search directory is invoked by --with-tcl
	25	#
	26
	27	if test x"${no_tcl}" = x ; then
	28	# we reset no_tcl in case something fails here
	29	no_tcl=true
	30	AC_ARG_WITH(tcl, [ --with-tcl directory containing tcl configuration (tclConfig.sh)], with_tclconfig=${withval})
	31	AC_MSG_CHECKING([for Tcl configuration])
	32	AC_CACHE_VAL(ac_cv_c_tclconfig,[
	33
	34	# First check to see if --with-tcl was specified.
	35	case "${host}" in
	36	--cygwin*) platDir="win" ;;
	37	*) platDir="unix" ;;
	38	esac
	39	if test x"${with_tclconfig}" != x ; then
	40	if test -f "${with_tclconfig}/tclConfig.sh" ; then
	41	ac_cv_c_tclconfig=`(cd ${with_tclconfig}; pwd)`
	42	else
	43	AC_MSG_ERROR([${with_tclconfig} directory doesn't contain tclConfig.sh])
	44	fi
	45	fi
	46
	47	# then check for a private Tcl installation
	48	if test x"${ac_cv_c_tclconfig}" = x ; then
	49	for i in \
	50	../tcl \
	51	`ls -dr ../tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
	52	`ls -dr ../tcl[[8-9]].[[0-9]] 2>/dev/null` \
	53	`ls -dr ../tcl[[8-9]].[[0-9]]* 2>/dev/null` \
	54	../../tcl \
	55	`ls -dr ../../tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
	56	`ls -dr ../../tcl[[8-9]].[[0-9]] 2>/dev/null` \
	57	`ls -dr ../../tcl[[8-9]].[[0-9]]* 2>/dev/null` \
	58	../../../tcl \
	59	`ls -dr ../../../tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
	60	`ls -dr ../../../tcl[[8-9]].[[0-9]] 2>/dev/null` \
	61	`ls -dr ../../../tcl[[8-9]].[[0-9]]* 2>/dev/null` ; do
	62	if test -f "$i/$platDir/tclConfig.sh" ; then
	63	ac_cv_c_tclconfig=`(cd $i/$platDir; pwd)`
	64	break
	65	fi
	66	done
	67	fi
	68
	69	# on Darwin, check in Framework installation locations
	70	if test "`uname -s`" = "Darwin" -a x"${ac_cv_c_tclconfig}" = x ; then
	71	for i in `ls -d ~/Library/Frameworks 2>/dev/null` \
	72	`ls -d /Library/Frameworks 2>/dev/null` \
	73	`ls -d /Network/Library/Frameworks 2>/dev/null` \
	74	`ls -d /System/Library/Frameworks 2>/dev/null` \
	75	; do
	76	if test -f "$i/Tcl.framework/tclConfig.sh" ; then
	77	ac_cv_c_tclconfig=`(cd $i/Tcl.framework; pwd)`
	78	break
	79	fi
	80	done
	81	fi
	82
	83	# check in a few common install locations
	84	if test x"${ac_cv_c_tclconfig}" = x ; then
	85	for i in `ls -d ${libdir} 2>/dev/null` \
	86	`ls -d ${exec_prefix}/lib 2>/dev/null` \
	87	`ls -d ${prefix}/lib 2>/dev/null` \
	88	`ls -d /usr/local/lib 2>/dev/null` \
	89	`ls -d /usr/contrib/lib 2>/dev/null` \
	90	`ls -d /usr/lib 2>/dev/null` \
	91	; do
	92	if test -f "$i/tclConfig.sh" ; then
	93	ac_cv_c_tclconfig=`(cd $i; pwd)`
	94	break
	95	fi
	96	done
	97	fi
	98
	99	# check in a few other private locations
	100	if test x"${ac_cv_c_tclconfig}" = x ; then
	101	for i in \
	102	${srcdir}/../tcl \
	103	`ls -dr ${srcdir}/../tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
	104	`ls -dr ${srcdir}/../tcl[[8-9]].[[0-9]] 2>/dev/null` \
	105	`ls -dr ${srcdir}/../tcl[[8-9]].[[0-9]]* 2>/dev/null` ; do
	106	if test -f "$i/$platDir/tclConfig.sh" ; then
	107	ac_cv_c_tclconfig=`(cd $i/$platDir; pwd)`
	108	break
	109	fi
	110	done
	111	fi
	112	])
	113
	114	if test x"${ac_cv_c_tclconfig}" = x ; then
	115	TCL_BIN_DIR="# no Tcl configs found"
	116	AC_MSG_WARN([Can't find Tcl configuration definitions])
	117	else
	118	no_tcl=
	119	TCL_BIN_DIR=${ac_cv_c_tclconfig}
	120	AC_MSG_RESULT([found ${TCL_BIN_DIR}/tclConfig.sh])
	121	fi
	122	fi
	123	])
	124
	125	#------------------------------------------------------------------------
	126	# SC_PATH_TKCONFIG --
	127	#
	128	# Locate the tkConfig.sh file
	129	#
	130	# Arguments:
	131	# none
	132	#
	133	# Results:
	134	#
	135	# Adds the following arguments to configure:
	136	# --with-tk=...
	137	#
	138	# Defines the following vars:
	139	# TK_BIN_DIR Full path to the directory containing
	140	# the tkConfig.sh file
	141	#------------------------------------------------------------------------
	142
	143	AC_DEFUN([SC_PATH_TKCONFIG], [
	144	#
	145	# Ok, lets find the tk configuration
	146	# First, look for one uninstalled.
	147	# the alternative search directory is invoked by --with-tk
	148	#
	149
	150	if test x"${no_tk}" = x ; then
	151	# we reset no_tk in case something fails here
	152	no_tk=true
	153	AC_ARG_WITH(tk, [ --with-tk directory containing tk configuration (tkConfig.sh)], with_tkconfig=${withval})
	154	AC_MSG_CHECKING([for Tk configuration])
	155	AC_CACHE_VAL(ac_cv_c_tkconfig,[
	156
	157	# First check to see if --with-tkconfig was specified.
	158	if test x"${with_tkconfig}" != x ; then
	159	if test -f "${with_tkconfig}/tkConfig.sh" ; then
	160	ac_cv_c_tkconfig=`(cd ${with_tkconfig}; pwd)`
	161	else
	162	AC_MSG_ERROR([${with_tkconfig} directory doesn't contain tkConfig.sh])
	163	fi
	164	fi
	165
	166	# then check for a private Tk library
	167	case "${host}" in
	168	--cygwin*) platDir="win" ;;
	169	*) platDir="unix" ;;
	170	esac
	171	if test x"${ac_cv_c_tkconfig}" = x ; then
	172	for i in \
	173	../tk \
	174	`ls -dr ../tk[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
	175	`ls -dr ../tk[[8-9]].[[0-9]] 2>/dev/null` \
	176	`ls -dr ../tk[[8-9]].[[0-9]]* 2>/dev/null` \
	177	../../tk \
	178	`ls -dr ../../tk[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
	179	`ls -dr ../../tk[[8-9]].[[0-9]] 2>/dev/null` \
	180	`ls -dr ../../tk[[8-9]].[[0-9]]* 2>/dev/null` \
	181	../../../tk \
	182	`ls -dr ../../../tk[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
	183	`ls -dr ../../../tk[[8-9]].[[0-9]] 2>/dev/null` \
	184	`ls -dr ../../../tk[[8-9]].[[0-9]]* 2>/dev/null` ; do
	185	if test -f "$i/$platDir/tkConfig.sh" ; then
	186	ac_cv_c_tkconfig=`(cd $i/$platDir; pwd)`
	187	break
	188	fi
	189	done
	190	fi
	191
	192	# on Darwin, check in Framework installation locations
	193	if test "`uname -s`" = "Darwin" -a x"${ac_cv_c_tkconfig}" = x ; then
	194	for i in `ls -d ~/Library/Frameworks 2>/dev/null` \
	195	`ls -d /Library/Frameworks 2>/dev/null` \
	196	`ls -d /Network/Library/Frameworks 2>/dev/null` \
	197	`ls -d /System/Library/Frameworks 2>/dev/null` \
	198	; do
	199	if test -f "$i/Tk.framework/tkConfig.sh" ; then
	200	ac_cv_c_tkconfig=`(cd $i/Tk.framework; pwd)`
	201	break
	202	fi
	203	done
	204	fi
	205
	206	# check in a few common install locations
	207	if test x"${ac_cv_c_tkconfig}" = x ; then
	208	for i in `ls -d ${libdir} 2>/dev/null` \
	209	`ls -d ${exec_prefix}/lib 2>/dev/null` \
	210	`ls -d ${prefix}/lib 2>/dev/null` \
	211	`ls -d /usr/local/lib 2>/dev/null` \
	212	`ls -d /usr/contrib/lib 2>/dev/null` \
	213	`ls -d /usr/lib 2>/dev/null` \
	214	; do
	215	if test -f "$i/tkConfig.sh" ; then
	216	ac_cv_c_tkconfig=`(cd $i; pwd)`
	217	break
	218	fi
	219	done
	220	fi
	221	# check in a few other private locations
	222	if test x"${ac_cv_c_tkconfig}" = x ; then
	223	for i in \
	224	${srcdir}/../tk \
	225	`ls -dr ${srcdir}/../tk[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
	226	`ls -dr ${srcdir}/../tk[[8-9]].[[0-9]] 2>/dev/null` \
	227	`ls -dr ${srcdir}/../tk[[8-9]].[[0-9]]* 2>/dev/null` ; do
	228	if test -f "$i/$platDir/tkConfig.sh" ; then
	229	ac_cv_c_tkconfig=`(cd $i/$platDir; pwd)`
	230	break
	231	fi
	232	done
	233	fi
	234	])
	235
	236	if test x"${ac_cv_c_tkconfig}" = x ; then
	237	TK_BIN_DIR="# no Tk configs found"
	238	AC_MSG_WARN([Can't find Tk configuration definitions])
	239	else
	240	no_tk=
	241	TK_BIN_DIR=${ac_cv_c_tkconfig}
	242	AC_MSG_RESULT([found ${TK_BIN_DIR}/tkConfig.sh])
	243	fi
	244	fi
	245	])
	246
	247	#------------------------------------------------------------------------
	248	# SC_LOAD_TCLCONFIG --
	249	#
	250	# Load the tclConfig.sh file
	251	#
	252	# Arguments:
	253	#
	254	# Requires the following vars to be set:
	255	# TCL_BIN_DIR
	256	#
	257	# Results:
	258	#
	259	# Subst the following vars:
	260	# TCL_BIN_DIR
	261	# TCL_SRC_DIR
	262	# TCL_LIB_FILE
	263	#
	264	#------------------------------------------------------------------------
	265
	266	AC_DEFUN([SC_LOAD_TCLCONFIG], [
	267	AC_MSG_CHECKING([for existence of ${TCL_BIN_DIR}/tclConfig.sh])
	268
	269	if test -f "${TCL_BIN_DIR}/tclConfig.sh" ; then
	270	AC_MSG_RESULT([loading])
	271	. ${TCL_BIN_DIR}/tclConfig.sh
	272	else
	273	AC_MSG_RESULT([could not find ${TCL_BIN_DIR}/tclConfig.sh])
	274	fi
	275
	276	# eval is required to do the TCL_DBGX substitution
	277	eval "TCL_LIB_FILE=\"${TCL_LIB_FILE}\""
	278	eval "TCL_STUB_LIB_FILE=\"${TCL_STUB_LIB_FILE}\""
	279
	280	# If the TCL_BIN_DIR is the build directory (not the install directory),
	281	# then set the common variable name to the value of the build variables.
	282	# For example, the variable TCL_LIB_SPEC will be set to the value
	283	# of TCL_BUILD_LIB_SPEC. An extension should make use of TCL_LIB_SPEC
	284	# instead of TCL_BUILD_LIB_SPEC since it will work with both an
	285	# installed and uninstalled version of Tcl.
	286	if test -f "${TCL_BIN_DIR}/Makefile" ; then
	287	TCL_LIB_SPEC=${TCL_BUILD_LIB_SPEC}
	288	TCL_STUB_LIB_SPEC=${TCL_BUILD_STUB_LIB_SPEC}
	289	TCL_STUB_LIB_PATH=${TCL_BUILD_STUB_LIB_PATH}
	290	elif test "`uname -s`" = "Darwin"; then
	291	# If Tcl was built as a framework, attempt to use the libraries
	292	# from the framework at the given location so that linking works
	293	# against Tcl.framework installed in an arbitrary location.
	294	case ${TCL_DEFS} in
	295	TCL_FRAMEWORK)
	296	if test -f "${TCL_BIN_DIR}/${TCL_LIB_FILE}"; then
	297	for i in "`cd ${TCL_BIN_DIR}; pwd`" \
	298	"`cd ${TCL_BIN_DIR}/../..; pwd`"; do
	299	if test "`basename "$i"`" = "${TCL_LIB_FILE}.framework"; then
	300	TCL_LIB_SPEC="-F`dirname "$i"` -framework ${TCL_LIB_FILE}"
	301	break
	302	fi
	303	done
	304	fi
	305	if test -f "${TCL_BIN_DIR}/${TCL_STUB_LIB_FILE}"; then
	306	TCL_STUB_LIB_SPEC="-L${TCL_BIN_DIR} ${TCL_STUB_LIB_FLAG}"
	307	TCL_STUB_LIB_PATH="${TCL_BIN_DIR}/${TCL_STUB_LIB_FILE}"
	308	fi
	309	;;
	310	esac
	311	fi
	312
	313	# eval is required to do the TCL_DBGX substitution
	314	eval "TCL_LIB_FLAG=\"${TCL_LIB_FLAG}\""
	315	eval "TCL_LIB_SPEC=\"${TCL_LIB_SPEC}\""
	316	eval "TCL_STUB_LIB_FLAG=\"${TCL_STUB_LIB_FLAG}\""
	317	eval "TCL_STUB_LIB_SPEC=\"${TCL_STUB_LIB_SPEC}\""
	318
	319	AC_SUBST(TCL_VERSION)
	320	AC_SUBST(TCL_PATCH_LEVEL)
	321	AC_SUBST(TCL_BIN_DIR)
	322	AC_SUBST(TCL_SRC_DIR)
	323
	324	AC_SUBST(TCL_LIB_FILE)
	325	AC_SUBST(TCL_LIB_FLAG)
	326	AC_SUBST(TCL_LIB_SPEC)
	327
	328	AC_SUBST(TCL_STUB_LIB_FILE)
	329	AC_SUBST(TCL_STUB_LIB_FLAG)
	330	AC_SUBST(TCL_STUB_LIB_SPEC)
	331	])
	332
	333	#------------------------------------------------------------------------
	334	# SC_LOAD_TKCONFIG --
	335	#
	336	# Load the tkConfig.sh file
	337	#
	338	# Arguments:
	339	#
	340	# Requires the following vars to be set:
	341	# TK_BIN_DIR
	342	#
	343	# Results:
	344	#
	345	# Sets the following vars that should be in tkConfig.sh:
	346	# TK_BIN_DIR
	347	#------------------------------------------------------------------------
	348
	349	AC_DEFUN([SC_LOAD_TKCONFIG], [
	350	AC_MSG_CHECKING([for existence of ${TK_BIN_DIR}/tkConfig.sh])
	351
	352	if test -f "${TK_BIN_DIR}/tkConfig.sh" ; then
	353	AC_MSG_RESULT([loading])
	354	. ${TK_BIN_DIR}/tkConfig.sh
	355	else
	356	AC_MSG_RESULT([could not find ${TK_BIN_DIR}/tkConfig.sh])
	357	fi
	358
	359	# eval is required to do the TK_DBGX substitution
	360	eval "TK_LIB_FILE=\"${TK_LIB_FILE}\""
	361	eval "TK_STUB_LIB_FILE=\"${TK_STUB_LIB_FILE}\""
	362
	363	# If the TK_BIN_DIR is the build directory (not the install directory),
	364	# then set the common variable name to the value of the build variables.
	365	# For example, the variable TK_LIB_SPEC will be set to the value
	366	# of TK_BUILD_LIB_SPEC. An extension should make use of TK_LIB_SPEC
	367	# instead of TK_BUILD_LIB_SPEC since it will work with both an
	368	# installed and uninstalled version of Tcl.
	369	if test -f "${TK_BIN_DIR}/Makefile" ; then
	370	TK_LIB_SPEC=${TK_BUILD_LIB_SPEC}
	371	TK_STUB_LIB_SPEC=${TK_BUILD_STUB_LIB_SPEC}
	372	TK_STUB_LIB_PATH=${TK_BUILD_STUB_LIB_PATH}
	373	elif test "`uname -s`" = "Darwin"; then
	374	# If Tk was built as a framework, attempt to use the libraries
	375	# from the framework at the given location so that linking works
	376	# against Tk.framework installed in an arbitrary location.
	377	case ${TK_DEFS} in
	378	TK_FRAMEWORK)
	379	if test -f "${TK_BIN_DIR}/${TK_LIB_FILE}"; then
	380	for i in "`cd ${TK_BIN_DIR}; pwd`" \
	381	"`cd ${TK_BIN_DIR}/../..; pwd`"; do
	382	if test "`basename "$i"`" = "${TK_LIB_FILE}.framework"; then
	383	TK_LIB_SPEC="-F`dirname "$i"` -framework ${TK_LIB_FILE}"
	384	break
	385	fi
	386	done
	387	fi
	388	if test -f "${TK_BIN_DIR}/${TK_STUB_LIB_FILE}"; then
	389	TK_STUB_LIB_SPEC="-L${TK_BIN_DIR} ${TK_STUB_LIB_FLAG}"
	390	TK_STUB_LIB_PATH="${TK_BIN_DIR}/${TK_STUB_LIB_FILE}"
	391	fi
	392	;;
	393	esac
	394	fi
	395
	396	# eval is required to do the TK_DBGX substitution
	397	eval "TK_LIB_FLAG=\"${TK_LIB_FLAG}\""
	398	eval "TK_LIB_SPEC=\"${TK_LIB_SPEC}\""
	399	eval "TK_STUB_LIB_FLAG=\"${TK_STUB_LIB_FLAG}\""
	400	eval "TK_STUB_LIB_SPEC=\"${TK_STUB_LIB_SPEC}\""
	401
	402	AC_SUBST(TK_VERSION)
	403	AC_SUBST(TK_BIN_DIR)
	404	AC_SUBST(TK_SRC_DIR)
	405
	406	AC_SUBST(TK_LIB_FILE)
	407	AC_SUBST(TK_LIB_FLAG)
	408	AC_SUBST(TK_LIB_SPEC)
	409
	410	AC_SUBST(TK_STUB_LIB_FILE)
	411	AC_SUBST(TK_STUB_LIB_FLAG)
	412	AC_SUBST(TK_STUB_LIB_SPEC)
	413	])
	414
	415	#------------------------------------------------------------------------
	416	# SC_PROG_TCLSH
	417	# Locate a tclsh shell installed on the system path. This macro
	418	# will only find a Tcl shell that already exists on the system.
	419	# It will not find a Tcl shell in the Tcl build directory or
	420	# a Tcl shell that has been installed from the Tcl build directory.
	421	# If a Tcl shell can't be located on the PATH, then TCLSH_PROG will
	422	# be set to "". Extensions should take care not to create Makefile
	423	# rules that are run by default and depend on TCLSH_PROG. An
	424	# extension can't assume that an executable Tcl shell exists at
	425	# build time.
	426	#
	427	# Arguments
	428	# none
	429	#
	430	# Results
	431	# Subst's the following values:
	432	# TCLSH_PROG
	433	#------------------------------------------------------------------------
	434
	435	AC_DEFUN([SC_PROG_TCLSH], [
	436	AC_MSG_CHECKING([for tclsh])
	437	AC_CACHE_VAL(ac_cv_path_tclsh, [
	438	search_path=`echo ${PATH} \| sed -e 's/:/ /g'`
	439	for dir in $search_path ; do
	440	for j in `ls -r $dir/tclsh[[8-9]]* 2> /dev/null` \
	441	`ls -r $dir/tclsh* 2> /dev/null` ; do
	442	if test x"$ac_cv_path_tclsh" = x ; then
	443	if test -f "$j" ; then
	444	ac_cv_path_tclsh=$j
	445	break
	446	fi
	447	fi
	448	done
	449	done
	450	])
	451
	452	if test -f "$ac_cv_path_tclsh" ; then
	453	TCLSH_PROG="$ac_cv_path_tclsh"
	454	AC_MSG_RESULT([$TCLSH_PROG])
	455	else
	456	# It is not an error if an installed version of Tcl can't be located.
	457	TCLSH_PROG=""
	458	AC_MSG_RESULT([No tclsh found on PATH])
	459	fi
	460	AC_SUBST(TCLSH_PROG)
	461	])
	462
	463	#------------------------------------------------------------------------
	464	# SC_BUILD_TCLSH
	465	# Determine the fully qualified path name of the tclsh executable
	466	# in the Tcl build directory. This macro will correctly determine
	467	# the name of the tclsh executable even if tclsh has not yet
	468	# been built in the build directory. The build tclsh must be used
	469	# when running tests from an extension build directory. It is not
	470	# correct to use the TCLSH_PROG in cases like this.
	471	#
	472	# Arguments
	473	# none
	474	#
	475	# Results
	476	# Subst's the following values:
	477	# BUILD_TCLSH
	478	#------------------------------------------------------------------------
	479
	480	AC_DEFUN([SC_BUILD_TCLSH], [
	481	AC_MSG_CHECKING([for tclsh in Tcl build directory])
	482	BUILD_TCLSH=${TCL_BIN_DIR}/tclsh
	483	AC_MSG_RESULT([$BUILD_TCLSH])
	484	AC_SUBST(BUILD_TCLSH)
	485	])
	486
	487	#------------------------------------------------------------------------
	488	# SC_ENABLE_SHARED --
	489	#
	490	# Allows the building of shared libraries
	491	#
	492	# Arguments:
	493	# none
	494	#
	495	# Results:
	496	#
	497	# Adds the following arguments to configure:
	498	# --enable-shared=yes\|no
	499	#
	500	# Defines the following vars:
	501	# STATIC_BUILD Used for building import/export libraries
	502	# on Windows.
	503	#
	504	# Sets the following vars:
	505	# SHARED_BUILD Value of 1 or 0
	506	#------------------------------------------------------------------------
	507
	508	AC_DEFUN([SC_ENABLE_SHARED], [
	509	AC_MSG_CHECKING([how to build libraries])
	510	AC_ARG_ENABLE(shared,
	511	[ --enable-shared build and link with shared libraries [--enable-shared]],
	512	[tcl_ok=$enableval], [tcl_ok=yes])
	513
	514	if test "${enable_shared+set}" = set; then
	515	enableval="$enable_shared"
	516	tcl_ok=$enableval
	517	else
	518	tcl_ok=yes
	519	fi
	520
	521	if test "$tcl_ok" = "yes" ; then
	522	AC_MSG_RESULT([shared])
	523	SHARED_BUILD=1
	524	else
	525	AC_MSG_RESULT([static])
	526	SHARED_BUILD=0
	527	AC_DEFINE(STATIC_BUILD)
	528	fi
	529	])
	530
	531	#------------------------------------------------------------------------
	532	# SC_ENABLE_FRAMEWORK --
	533	#
	534	# Allows the building of shared libraries into frameworks
	535	#
	536	# Arguments:
	537	# none
	538	#
	539	# Results:
	540	#
	541	# Adds the following arguments to configure:
	542	# --enable-framework=yes\|no
	543	#
	544	# Sets the following vars:
	545	# FRAMEWORK_BUILD Value of 1 or 0
	546	#------------------------------------------------------------------------
	547
	548	AC_DEFUN([SC_ENABLE_FRAMEWORK], [
	549	if test "`uname -s`" = "Darwin" ; then
	550	AC_MSG_CHECKING([how to package libraries])
	551	AC_ARG_ENABLE(framework,
	552	[ --enable-framework package shared libraries in MacOSX frameworks [--disable-framework]],
	553	[enable_framework=$enableval], [enable_framework=no])
	554	if test $enable_framework = yes; then
	555	if test $SHARED_BUILD = 0; then
	556	AC_MSG_WARN([Frameworks can only be built if --enable-shared is yes])
	557	enable_framework=no
	558	fi
	559	if test $tcl_corefoundation = no; then
	560	AC_MSG_WARN([Frameworks can only be used when CoreFoundation is available])
	561	enable_framework=no
	562	fi
	563	fi
	564	if test $enable_framework = yes; then
	565	AC_MSG_RESULT([framework])
	566	FRAMEWORK_BUILD=1
	567	else
	568	if test $SHARED_BUILD = 1; then
	569	AC_MSG_RESULT([shared library])
	570	else
	571	AC_MSG_RESULT([static library])
	572	fi
	573	FRAMEWORK_BUILD=0
	574	fi
	575	fi
	576	])
	577
	578	#------------------------------------------------------------------------
	579	# SC_ENABLE_THREADS --
	580	#
	581	# Specify if thread support should be enabled. TCL_THREADS is
	582	# checked so that if you are compiling an extension against a
	583	# threaded core, your extension must be compiled threaded as well.
	584	#
	585	# Arguments:
	586	# none
	587	#
	588	# Results:
	589	#
	590	# Adds the following arguments to configure:
	591	# --enable-threads
	592	#
	593	# Sets the following vars:
	594	# THREADS_LIBS Thread library(s)
	595	#
	596	# Defines the following vars:
	597	# TCL_THREADS
	598	# _REENTRANT
	599	# _THREAD_SAFE
	600	#
	601	#------------------------------------------------------------------------
	602
	603	AC_DEFUN([SC_ENABLE_THREADS], [
	604	AC_ARG_ENABLE(threads, [ --enable-threads build with threads],
	605	[tcl_ok=$enableval], [tcl_ok=no])
	606
	607	if test "${TCL_THREADS}" = 1; then
	608	tcl_threaded_core=1;
	609	fi
	610
	611	if test "$tcl_ok" = "yes" -o "${TCL_THREADS}" = 1; then
	612	TCL_THREADS=1
	613	# USE_THREAD_ALLOC tells us to try the special thread-based
	614	# allocator that significantly reduces lock contention
	615	AC_DEFINE(USE_THREAD_ALLOC)
	616	AC_DEFINE(_REENTRANT)
	617	if test "`uname -s`" = "SunOS" ; then
	618	AC_DEFINE(_POSIX_PTHREAD_SEMANTICS)
	619	fi
	620	AC_DEFINE(_THREAD_SAFE)
	621	AC_CHECK_LIB(pthread,pthread_mutex_init,tcl_ok=yes,tcl_ok=no)
	622	if test "$tcl_ok" = "no"; then
	623	# Check a little harder for __pthread_mutex_init in the same
	624	# library, as some systems hide it there until pthread.h is
	625	# defined. We could alternatively do an AC_TRY_COMPILE with
	626	# pthread.h, but that will work with libpthread really doesn't
	627	# exist, like AIX 4.2. [Bug: 4359]
	628	AC_CHECK_LIB(pthread, __pthread_mutex_init,
	629	tcl_ok=yes, tcl_ok=no)
	630	fi
	631
	632	if test "$tcl_ok" = "yes"; then
	633	# The space is needed
	634	THREADS_LIBS=" -lpthread"
	635	else
	636	AC_CHECK_LIB(pthreads, pthread_mutex_init,
	637	tcl_ok=yes, tcl_ok=no)
	638	if test "$tcl_ok" = "yes"; then
	639	# The space is needed
	640	THREADS_LIBS=" -lpthreads"
	641	else
	642	AC_CHECK_LIB(c, pthread_mutex_init,
	643	tcl_ok=yes, tcl_ok=no)
	644	if test "$tcl_ok" = "no"; then
	645	AC_CHECK_LIB(c_r, pthread_mutex_init,
	646	tcl_ok=yes, tcl_ok=no)
	647	if test "$tcl_ok" = "yes"; then
	648	# The space is needed
	649	THREADS_LIBS=" -pthread"
	650	else
	651	TCL_THREADS=0
	652	AC_MSG_WARN([Don't know how to find pthread lib on your system - you must disable thread support or edit the LIBS in the Makefile...])
	653	fi
	654	fi
	655	fi
	656	fi
	657
	658	# Does the pthread-implementation provide
	659	# 'pthread_attr_setstacksize' ?
	660
	661	ac_saved_libs=$LIBS
	662	LIBS="$LIBS $THREADS_LIBS"
	663	AC_CHECK_FUNCS(pthread_attr_setstacksize)
	664	AC_CHECK_FUNCS(pthread_atfork)
	665	LIBS=$ac_saved_libs
	666	else
	667	TCL_THREADS=0
	668	fi
	669	# Do checking message here to not mess up interleaved configure output
	670	AC_MSG_CHECKING([for building with threads])
	671	if test "${TCL_THREADS}" = 1; then
	672	AC_DEFINE(TCL_THREADS, 1, [Are we building with threads enabled?])
	673	if test "${tcl_threaded_core}" = 1; then
	674	AC_MSG_RESULT([yes (threaded core)])
	675	else
	676	AC_MSG_RESULT([yes])
	677	fi
	678	else
	679	AC_MSG_RESULT([no (default)])
	680	fi
	681
	682	AC_SUBST(TCL_THREADS)
	683	])
	684
	685	#------------------------------------------------------------------------
	686	# SC_ENABLE_SYMBOLS --
	687	#
	688	# Specify if debugging symbols should be used.
	689	# Memory (TCL_MEM_DEBUG) and compile (TCL_COMPILE_DEBUG) debugging
	690	# can also be enabled.
	691	#
	692	# Arguments:
	693	# none
	694	#
	695	# Requires the following vars to be set in the Makefile:
	696	# CFLAGS_DEBUG
	697	# CFLAGS_OPTIMIZE
	698	# LDFLAGS_DEBUG
	699	# LDFLAGS_OPTIMIZE
	700	#
	701	# Results:
	702	#
	703	# Adds the following arguments to configure:
	704	# --enable-symbols
	705	#
	706	# Defines the following vars:
	707	# CFLAGS_DEFAULT Sets to $(CFLAGS_DEBUG) if true
	708	# Sets to $(CFLAGS_OPTIMIZE) if false
	709	# LDFLAGS_DEFAULT Sets to $(LDFLAGS_DEBUG) if true
	710	# Sets to $(LDFLAGS_OPTIMIZE) if false
	711	# DBGX Debug library extension
	712	#
	713	#------------------------------------------------------------------------
	714
	715	AC_DEFUN([SC_ENABLE_SYMBOLS], [
	716	AC_MSG_CHECKING([for build with symbols])
	717	AC_ARG_ENABLE(symbols, [ --enable-symbols build with debugging symbols [--disable-symbols]], [tcl_ok=$enableval], [tcl_ok=no])
	718	# FIXME: Currently, LDFLAGS_DEFAULT is not used, it should work like CFLAGS_DEFAULT.
	719	if test "$tcl_ok" = "no"; then
	720	CFLAGS_DEFAULT='$(CFLAGS_OPTIMIZE)'
	721	LDFLAGS_DEFAULT='$(LDFLAGS_OPTIMIZE)'
	722	DBGX=""
	723	AC_MSG_RESULT([no])
	724	else
	725	CFLAGS_DEFAULT='$(CFLAGS_DEBUG)'
	726	LDFLAGS_DEFAULT='$(LDFLAGS_DEBUG)'
	727	DBGX=g
	728	if test "$tcl_ok" = "yes"; then
	729	AC_MSG_RESULT([yes (standard debugging)])
	730	fi
	731	fi
	732	AC_SUBST(CFLAGS_DEFAULT)
	733	AC_SUBST(LDFLAGS_DEFAULT)
	734
	735	if test "$tcl_ok" = "mem" -o "$tcl_ok" = "all"; then
	736	AC_DEFINE(TCL_MEM_DEBUG)
	737	fi
	738
	739	if test "$tcl_ok" = "compile" -o "$tcl_ok" = "all"; then
	740	AC_DEFINE(TCL_COMPILE_DEBUG)
	741	AC_DEFINE(TCL_COMPILE_STATS)
	742	fi
	743
	744	if test "$tcl_ok" != "yes" -a "$tcl_ok" != "no"; then
	745	if test "$tcl_ok" = "all"; then
	746	AC_MSG_RESULT([enabled symbols mem compile debugging])
	747	else
	748	AC_MSG_RESULT([enabled $tcl_ok debugging])
	749	fi
	750	fi
	751	])
	752
	753	#------------------------------------------------------------------------
	754	# SC_ENABLE_LANGINFO --
	755	#
	756	# Allows use of modern nl_langinfo check for better l10n.
	757	# This is only relevant for Unix.
	758	#
	759	# Arguments:
	760	# none
	761	#
	762	# Results:
	763	#
	764	# Adds the following arguments to configure:
	765	# --enable-langinfo=yes\|no (default is yes)
	766	#
	767	# Defines the following vars:
	768	# HAVE_LANGINFO Triggers use of nl_langinfo if defined.
	769	#
	770	#------------------------------------------------------------------------
	771
	772	AC_DEFUN([SC_ENABLE_LANGINFO], [
	773	AC_ARG_ENABLE(langinfo,
	774	[ --enable-langinfo use nl_langinfo if possible to determine
	775	encoding at startup, otherwise use old heuristic],
	776	[langinfo_ok=$enableval], [langinfo_ok=yes])
	777
	778	HAVE_LANGINFO=0
	779	if test "$langinfo_ok" = "yes"; then
	780	AC_CHECK_HEADER(langinfo.h,[langinfo_ok=yes],[langinfo_ok=no])
	781	fi
	782	AC_MSG_CHECKING([whether to use nl_langinfo])
	783	if test "$langinfo_ok" = "yes"; then
	784	AC_CACHE_VAL(tcl_cv_langinfo_h, [
	785	AC_TRY_COMPILE([#include <langinfo.h>], [nl_langinfo(CODESET);],
	786	[tcl_cv_langinfo_h=yes],[tcl_cv_langinfo_h=no])])
	787	AC_MSG_RESULT([$tcl_cv_langinfo_h])
	788	if test $tcl_cv_langinfo_h = yes; then
	789	AC_DEFINE(HAVE_LANGINFO)
	790	fi
	791	else
	792	AC_MSG_RESULT([$langinfo_ok])
	793	fi
	794	])
	795
	796	#--------------------------------------------------------------------
	797	# SC_CONFIG_MANPAGES
	798	#
	799	# Decide whether to use symlinks for linking the manpages,
	800	# whether to compress the manpages after installation, and
	801	# whether to add a package name suffix to the installed
	802	# manpages to avoidfile name clashes.
	803	# If compression is enabled also find out what file name suffix
	804	# the given compression program is using.
	805	#
	806	# Arguments:
	807	# none
	808	#
	809	# Results:
	810	#
	811	# Adds the following arguments to configure:
	812	# --enable-man-symlinks
	813	# --enable-man-compression=PROG
	814	# --enable-man-suffix[=STRING]
	815	#
	816	# Defines the following variable:
	817	#
	818	# MAN_FLAGS - The appropriate flags for installManPage
	819	# according to the user's selection.
	820	#
	821	#--------------------------------------------------------------------
	822
	823	AC_DEFUN([SC_CONFIG_MANPAGES], [
	824	AC_MSG_CHECKING([whether to use symlinks for manpages])
	825	AC_ARG_ENABLE(man-symlinks,
	826	[ --enable-man-symlinks use symlinks for the manpages],
	827	test "$enableval" != "no" && MAN_FLAGS="$MAN_FLAGS --symlinks",
	828	enableval="no")
	829	AC_MSG_RESULT([$enableval])
	830
	831	AC_MSG_CHECKING([whether to compress the manpages])
	832	AC_ARG_ENABLE(man-compression,
	833	[ --enable-man-compression=PROG
	834	compress the manpages with PROG],
	835	[case $enableval in
	836	yes) AC_MSG_ERROR([missing argument to --enable-man-compression]);;
	837	no) ;;
	838	*) MAN_FLAGS="$MAN_FLAGS --compress $enableval";;
	839	esac],
	840	enableval="no")
	841	AC_MSG_RESULT([$enableval])
	842	if test "$enableval" != "no"; then
	843	AC_MSG_CHECKING([for compressed file suffix])
	844	touch TeST
	845	$enableval TeST
	846	Z=`ls TeST* \| sed 's/^....//'`
	847	rm -f TeST*
	848	MAN_FLAGS="$MAN_FLAGS --extension $Z"
	849	AC_MSG_RESULT([$Z])
	850	fi
	851
	852	AC_MSG_CHECKING([whether to add a package name suffix for the manpages])
	853	AC_ARG_ENABLE(man-suffix,
	854	[ --enable-man-suffix=STRING
	855	use STRING as a suffix to manpage file names
	856	(default: $1)],
	857	[case $enableval in
	858	yes) enableval="$1" MAN_FLAGS="$MAN_FLAGS --suffix $enableval";;
	859	no) ;;
	860	*) MAN_FLAGS="$MAN_FLAGS --suffix $enableval";;
	861	esac],
	862	enableval="no")
	863	AC_MSG_RESULT([$enableval])
	864
	865	AC_SUBST(MAN_FLAGS)
	866	])
	867
	868	#--------------------------------------------------------------------
	869	# SC_CONFIG_SYSTEM
	870	#
	871	# Determine what the system is (some things cannot be easily checked
	872	# on a feature-driven basis, alas). This can usually be done via the
	873	# "uname" command, but there are a few systems, like Next, where
	874	# this doesn't work.
	875	#
	876	# Arguments:
	877	# none
	878	#
	879	# Results:
	880	# Defines the following var:
	881	#
	882	# system - System/platform/version identification code.
	883	#
	884	#--------------------------------------------------------------------
	885
	886	AC_DEFUN([SC_CONFIG_SYSTEM], [
	887	AC_CACHE_CHECK([system version], tcl_cv_sys_version, [
	888	if test -f /usr/lib/NextStep/software_version; then
	889	tcl_cv_sys_version=NEXTSTEP-`awk '/3/,/3/' /usr/lib/NextStep/software_version`
	890	else
	891	tcl_cv_sys_version=`uname -s`-`uname -r`
	892	if test "$?" -ne 0 ; then
	893	AC_MSG_WARN([can't find uname command])
	894	tcl_cv_sys_version=unknown
	895	else
	896	# Special check for weird MP-RAS system (uname returns weird
	897	# results, and the version is kept in special file).
	898
	899	if test -r /etc/.relid -a "X`uname -n`" = "X`uname -s`" ; then
	900	tcl_cv_sys_version=MP-RAS-`awk '{print $[3]}' /etc/.relid`
	901	fi
	902	if test "`uname -s`" = "AIX" ; then
	903	tcl_cv_sys_version=AIX-`uname -v`.`uname -r`
	904	fi
	905	fi
	906	fi
	907	])
	908	system=$tcl_cv_sys_version
	909	])
	910
	911	#--------------------------------------------------------------------
	912	# SC_CONFIG_CFLAGS
	913	#
	914	# Try to determine the proper flags to pass to the compiler
	915	# for building shared libraries and other such nonsense.
	916	#
	917	# Arguments:
	918	# none
	919	#
	920	# Results:
	921	#
	922	# Defines and substitutes the following vars:
	923	#
	924	# DL_OBJS - Name of the object file that implements dynamic
	925	# loading for Tcl on this system.
	926	# DL_LIBS - Library file(s) to include in tclsh and other base
	927	# applications in order for the "load" command to work.
	928	# LDFLAGS - Flags to pass to the compiler when linking object
	929	# files into an executable application binary such
	930	# as tclsh.
	931	# LD_SEARCH_FLAGS-Flags to pass to ld, such as "-R /usr/local/tcl/lib",
	932	# that tell the run-time dynamic linker where to look
	933	# for shared libraries such as libtcl.so. Depends on
	934	# the variable LIB_RUNTIME_DIR in the Makefile. Could
	935	# be the same as CC_SEARCH_FLAGS if ${CC} is used to link.
	936	# CC_SEARCH_FLAGS-Flags to pass to ${CC}, such as "-Wl,-rpath,/usr/local/tcl/lib",
	937	# that tell the run-time dynamic linker where to look
	938	# for shared libraries such as libtcl.so. Depends on
	939	# the variable LIB_RUNTIME_DIR in the Makefile.
	940	# MAKE_LIB - Command to execute to build the a library;
	941	# differs when building shared or static.
	942	# MAKE_STUB_LIB -
	943	# Command to execute to build a stub library.
	944	# INSTALL_LIB - Command to execute to install a library;
	945	# differs when building shared or static.
	946	# INSTALL_STUB_LIB -
	947	# Command to execute to install a stub library.
	948	# STLIB_LD - Base command to use for combining object files
	949	# into a static library.
	950	# SHLIB_CFLAGS - Flags to pass to cc when compiling the components
	951	# of a shared library (may request position-independent
	952	# code, among other things).
	953	# SHLIB_LD - Base command to use for combining object files
	954	# into a shared library.
	955	# SHLIB_LD_LIBS - Dependent libraries for the linker to scan when
	956	# creating shared libraries. This symbol typically
	957	# goes at the end of the "ld" commands that build
	958	# shared libraries. The value of the symbol is
	959	# "${LIBS}" if all of the dependent libraries should
	960	# be specified when creating a shared library. If
	961	# dependent libraries should not be specified (as on
	962	# SunOS 4.x, where they cause the link to fail, or in
	963	# general if Tcl and Tk aren't themselves shared
	964	# libraries), then this symbol has an empty string
	965	# as its value.
	966	# SHLIB_SUFFIX - Suffix to use for the names of dynamically loadable
	967	# extensions. An empty string means we don't know how
	968	# to use shared libraries on this platform.
	969	# TCL_SHLIB_LD_EXTRAS - Additional element which are added to SHLIB_LD_LIBS
	970	# TK_SHLIB_LD_EXTRAS for the build of Tcl and Tk, but not recorded in the
	971	# tclConfig.sh, since they are only used for the build
	972	# of Tcl and Tk.
	973	# Examples: MacOS X records the library version and
	974	# compatibility version in the shared library. But
	975	# of course the Tcl version of this is only used for Tcl.
	976	# LIB_SUFFIX - Specifies everything that comes after the "libfoo"
	977	# in a static or shared library name, using the $VERSION variable
	978	# to put the version in the right place. This is used
	979	# by platforms that need non-standard library names.
	980	# Examples: ${VERSION}.so.1.1 on NetBSD, since it needs
	981	# to have a version after the .so, and ${VERSION}.a
	982	# on AIX, since a shared library needs to have
	983	# a .a extension whereas shared objects for loadable
	984	# extensions have a .so extension. Defaults to
	985	# ${VERSION}${SHLIB_SUFFIX}.
	986	# TCL_NEEDS_EXP_FILE -
	987	# 1 means that an export file is needed to link to a
	988	# shared library.
	989	# TCL_EXP_FILE - The name of the installed export / import file which
	990	# should be used to link to the Tcl shared library.
	991	# Empty if Tcl is unshared.
	992	# TCL_BUILD_EXP_FILE -
	993	# The name of the built export / import file which
	994	# should be used to link to the Tcl shared library.
	995	# Empty if Tcl is unshared.
	996	# CFLAGS_DEBUG -
	997	# Flags used when running the compiler in debug mode
	998	# CFLAGS_OPTIMIZE -
	999	# Flags used when running the compiler in optimize mode
	1000	# CFLAGS - Additional CFLAGS added as necessary (usually 64-bit)
	1001	#
	1002	#--------------------------------------------------------------------
	1003
	1004	AC_DEFUN([SC_CONFIG_CFLAGS], [
	1005
	1006	# Step 0.a: Enable 64 bit support?
	1007
	1008	AC_MSG_CHECKING([if 64bit support is requested])
	1009	AC_ARG_ENABLE(64bit,[ --enable-64bit enable 64bit support (where applicable)],
	1010	[do64bit=$enableval], [do64bit=no])
	1011	AC_MSG_RESULT([$do64bit])
	1012
	1013	# Step 0.b: Enable Solaris 64 bit VIS support?
	1014
	1015	AC_MSG_CHECKING([if 64bit Sparc VIS support is requested])
	1016	AC_ARG_ENABLE(64bit-vis,[ --enable-64bit-vis enable 64bit Sparc VIS support],
	1017	[do64bitVIS=$enableval], [do64bitVIS=no])
	1018	AC_MSG_RESULT([$do64bitVIS])
	1019
	1020	if test "$do64bitVIS" = "yes"; then
	1021	# Force 64bit on with VIS
	1022	do64bit=yes
	1023	fi
	1024
	1025	# Step 1: set the variable "system" to hold the name and version number
	1026	# for the system.
	1027
	1028	SC_CONFIG_SYSTEM
	1029
	1030	# Step 2: check for existence of -ldl library. This is needed because
	1031	# Linux can use either -ldl or -ldld for dynamic loading.
	1032
	1033	AC_CHECK_LIB(dl, dlopen, have_dl=yes, have_dl=no)
	1034
	1035	# Require ranlib early so we can override it in special cases below.
	1036
	1037	AC_REQUIRE([AC_PROG_RANLIB])
	1038
	1039	# Step 3: set configuration options based on system name and version.
	1040
	1041	do64bit_ok=no
	1042	LDFLAGS_ORIG="$LDFLAGS"
	1043	TCL_EXPORT_FILE_SUFFIX=""
	1044	UNSHARED_LIB_SUFFIX=""
	1045	TCL_TRIM_DOTS='`echo ${VERSION} \| tr -d .`'
	1046	ECHO_VERSION='`echo ${VERSION}`'
	1047	TCL_LIB_VERSIONS_OK=ok
	1048	CFLAGS_DEBUG=-g
	1049	CFLAGS_OPTIMIZE=-O
	1050	if test "$GCC" = "yes" ; then
	1051	CFLAGS_WARNING="-Wall -Wno-implicit-int -fno-strict-aliasing"
	1052	else
	1053	CFLAGS_WARNING=""
	1054	fi
	1055	TCL_NEEDS_EXP_FILE=0
	1056	TCL_BUILD_EXP_FILE=""
	1057	TCL_EXP_FILE=""
	1058	dnl FIXME: Replace AC_CHECK_PROG with AC_CHECK_TOOL once cross compiling is fixed.
	1059	dnl AC_CHECK_TOOL(AR, ar)
	1060	AC_CHECK_PROG(AR, ar, ar)
	1061	if test "${AR}" = "" ; then
	1062	AC_MSG_ERROR([Required archive tool 'ar' not found on PATH.])
	1063	fi
	1064	STLIB_LD='${AR} cr'
	1065	LD_LIBRARY_PATH_VAR="LD_LIBRARY_PATH"
	1066	PLAT_OBJS=""
	1067	PLAT_SRCS=""
	1068	case $system in
	1069	AIX-*)
	1070	if test "${TCL_THREADS}" = "1" -a "$GCC" != "yes" ; then
	1071	# AIX requires the _r compiler when gcc isn't being used
	1072	case "${CC}" in
	1073	*_r)
	1074	# ok ...
	1075	;;
	1076	*)
	1077	CC=${CC}_r
	1078	;;
	1079	esac
	1080	AC_MSG_RESULT([Using $CC for compiling with threads])
	1081	fi
	1082	LIBS="$LIBS -lc"
	1083	SHLIB_CFLAGS=""
	1084	# Note: need the LIBS below, otherwise Tk won't find Tcl's
	1085	# symbols when dynamically loaded into tclsh.
	1086	SHLIB_LD_LIBS='${LIBS}'
	1087	SHLIB_SUFFIX=".so"
	1088
	1089	DL_OBJS="tclLoadDl.o"
	1090	LD_LIBRARY_PATH_VAR="LIBPATH"
	1091
	1092	# Check to enable 64-bit flags for compiler/linker on AIX 4+
	1093	if test "$do64bit" = "yes" -a "`uname -v`" -gt "3" ; then
	1094	if test "$GCC" = "yes" ; then
	1095	AC_MSG_WARN([64bit mode not supported with GCC on $system])
	1096	else
	1097	do64bit_ok=yes
	1098	CFLAGS="$CFLAGS -q64"
	1099	LDFLAGS="$LDFLAGS -q64"
	1100	RANLIB="${RANLIB} -X64"
	1101	AR="${AR} -X64"
	1102	SHLIB_LD_FLAGS="-b64"
	1103	fi
	1104	fi
	1105
	1106	if test "`uname -m`" = "ia64" ; then
	1107	# AIX-5 uses ELF style dynamic libraries on IA-64, but not PPC
	1108	SHLIB_LD="/usr/ccs/bin/ld -G -z text"
	1109	# AIX-5 has dl* in libc.so
	1110	DL_LIBS=""
	1111	if test "$GCC" = "yes" ; then
	1112	CC_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
	1113	else
	1114	CC_SEARCH_FLAGS='-R${LIB_RUNTIME_DIR}'
	1115	fi
	1116	LD_SEARCH_FLAGS='-R ${LIB_RUNTIME_DIR}'
	1117	else
	1118	if test "$GCC" = "yes" ; then
	1119	SHLIB_LD="gcc -shared"
	1120	else
	1121	SHLIB_LD="/bin/ld -bhalt:4 -bM:SRE -bE:lib.exp -H512 -T512 -bnoentry"
	1122	fi
	1123	SHLIB_LD="${TCL_SRC_DIR}/unix/ldAix ${SHLIB_LD} ${SHLIB_LD_FLAGS}"
	1124	DL_LIBS="-ldl"
	1125	CC_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
	1126	LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
	1127	TCL_NEEDS_EXP_FILE=1
	1128	TCL_EXPORT_FILE_SUFFIX='${VERSION}\$\{DBGX\}.exp'
	1129	fi
	1130
	1131	# AIX v<=4.1 has some different flags than 4.2+
	1132	if test "$system" = "AIX-4.1" -o "`uname -v`" -lt "4" ; then
	1133	LIBOBJS="$LIBOBJS tclLoadAix.o"
	1134	DL_LIBS="-lld"
	1135	fi
	1136
	1137	# On AIX <=v4 systems, libbsd.a has to be linked in to support
	1138	# non-blocking file IO. This library has to be linked in after
	1139	# the MATH_LIBS or it breaks the pow() function. The way to
	1140	# insure proper sequencing, is to add it to the tail of MATH_LIBS.
	1141	# This library also supplies gettimeofday.
	1142	#
	1143	# AIX does not have a timezone field in struct tm. When the AIX
	1144	# bsd library is used, the timezone global and the gettimeofday
	1145	# methods are to be avoided for timezone deduction instead, we
	1146	# deduce the timezone by comparing the localtime result on a
	1147	# known GMT value.
	1148
	1149	AC_CHECK_LIB(bsd, gettimeofday, libbsd=yes, libbsd=no)
	1150	if test $libbsd = yes; then
	1151	MATH_LIBS="$MATH_LIBS -lbsd"
	1152	AC_DEFINE(USE_DELTA_FOR_TZ)
	1153	fi
	1154	;;
	1155	BeOS*)
	1156	SHLIB_CFLAGS="-fPIC"
	1157	SHLIB_LD="${CC} -nostart"
	1158	SHLIB_LD_LIBS='${LIBS}'
	1159	SHLIB_SUFFIX=".so"
	1160	DL_OBJS="tclLoadDl.o"
	1161	DL_LIBS="-ldl"
	1162
	1163	#-----------------------------------------------------------
	1164	# Check for inet_ntoa in -lbind, for BeOS (which also needs
	1165	# -lsocket, even if the network functions are in -lnet which
	1166	# is always linked to, for compatibility.
	1167	#-----------------------------------------------------------
	1168	AC_CHECK_LIB(bind, inet_ntoa, [LIBS="$LIBS -lbind -lsocket"])
	1169	;;
	1170	BSD/OS-2.1\|BSD/OS-3)
	1171	SHLIB_CFLAGS=""
	1172	SHLIB_LD="shlicc -r"
	1173	SHLIB_LD_LIBS='${LIBS}'
	1174	SHLIB_SUFFIX=".so"
	1175	DL_OBJS="tclLoadDl.o"
	1176	DL_LIBS="-ldl"
	1177	CC_SEARCH_FLAGS=""
	1178	LD_SEARCH_FLAGS=""
	1179	;;
	1180	BSD/OS-4.*)
	1181	SHLIB_CFLAGS="-export-dynamic -fPIC"
	1182	SHLIB_LD="cc -shared"
	1183	SHLIB_LD_LIBS='${LIBS}'
	1184	SHLIB_SUFFIX=".so"
	1185	DL_OBJS="tclLoadDl.o"
	1186	DL_LIBS="-ldl"
	1187	LDFLAGS="$LDFLAGS -export-dynamic"
	1188	CC_SEARCH_FLAGS=""
	1189	LD_SEARCH_FLAGS=""
	1190	;;
	1191	dgux*)
	1192	SHLIB_CFLAGS="-K PIC"
	1193	SHLIB_LD="cc -G"
	1194	SHLIB_LD_LIBS=""
	1195	SHLIB_SUFFIX=".so"
	1196	DL_OBJS="tclLoadDl.o"
	1197	DL_LIBS="-ldl"
	1198	CC_SEARCH_FLAGS=""
	1199	LD_SEARCH_FLAGS=""
	1200	;;
	1201	HP-UX-.11.)
	1202	# Use updated header definitions where possible
	1203	AC_DEFINE(_XOPEN_SOURCE) # Use the XOPEN network library
	1204	AC_DEFINE(_XOPEN_SOURCE_EXTENDED) # Use the XOPEN network library
	1205	LIBS="$LIBS -lxnet" # Use the XOPEN network library
	1206
	1207	if test "`uname -m`" = "ia64" ; then
	1208	SHLIB_SUFFIX=".so"
	1209	else
	1210	SHLIB_SUFFIX=".sl"
	1211	fi
	1212	AC_CHECK_LIB(dld, shl_load, tcl_ok=yes, tcl_ok=no)
	1213	if test "$tcl_ok" = yes; then
	1214	SHLIB_CFLAGS="+z"
	1215	SHLIB_LD="ld -b"
	1216	SHLIB_LD_LIBS='${LIBS}'
	1217	DL_OBJS="tclLoadShl.o"
	1218	DL_LIBS="-ldld"
	1219	LDFLAGS="$LDFLAGS -Wl,-E"
	1220	CC_SEARCH_FLAGS='-Wl,+s,+b,${LIB_RUNTIME_DIR}:.'
	1221	LD_SEARCH_FLAGS='+s +b ${LIB_RUNTIME_DIR}:.'
	1222	LD_LIBRARY_PATH_VAR="SHLIB_PATH"
	1223	fi
	1224	if test "$GCC" = "yes" ; then
	1225	SHLIB_LD="gcc -shared"
	1226	SHLIB_LD_LIBS='${LIBS}'
	1227	LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
	1228	fi
	1229
	1230	# Users may want PA-RISC 1.1/2.0 portable code - needs HP cc
	1231	#CFLAGS="$CFLAGS +DAportable"
	1232
	1233	# Check to enable 64-bit flags for compiler/linker
	1234	if test "$do64bit" = "yes" ; then
	1235	if test "$GCC" = "yes" ; then
	1236	hpux_arch=`${CC} -dumpmachine`
	1237	case $hpux_arch in
	1238	hppa64*)
	1239	# 64-bit gcc in use. Fix flags for GNU ld.
	1240	do64bit_ok=yes
	1241	SHLIB_LD="${CC} -shared"
	1242	SHLIB_LD_LIBS='${LIBS}'
	1243	CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
	1244	LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
	1245	;;
	1246	*)
	1247	AC_MSG_WARN([64bit mode not supported with GCC on $system])
	1248	;;
	1249	esac
	1250	else
	1251	do64bit_ok=yes
	1252	CFLAGS="$CFLAGS +DD64"
	1253	LDFLAGS="$LDFLAGS +DD64"
	1254	fi
	1255	fi
	1256	;;
	1257	HP-UX-.08.\|HP-UX-.09.\|HP-UX-.10.)
	1258	SHLIB_SUFFIX=".sl"
	1259	AC_CHECK_LIB(dld, shl_load, tcl_ok=yes, tcl_ok=no)
	1260	if test "$tcl_ok" = yes; then
	1261	SHLIB_CFLAGS="+z"
	1262	SHLIB_LD="ld -b"
	1263	SHLIB_LD_LIBS=""
	1264	DL_OBJS="tclLoadShl.o"
	1265	DL_LIBS="-ldld"
	1266	LDFLAGS="$LDFLAGS -Wl,-E"
	1267	CC_SEARCH_FLAGS='-Wl,+s,+b,${LIB_RUNTIME_DIR}:.'
	1268	LD_SEARCH_FLAGS='+s +b ${LIB_RUNTIME_DIR}:.'
	1269	LD_LIBRARY_PATH_VAR="SHLIB_PATH"
	1270	fi
	1271	;;
	1272	IRIX-4.*)
	1273	SHLIB_CFLAGS="-G 0"
	1274	SHLIB_SUFFIX=".a"
	1275	SHLIB_LD="echo tclLdAout $CC \{$SHLIB_CFLAGS\} \| `pwd`/tclsh -r -G 0"
	1276	SHLIB_LD_LIBS='${LIBS}'
	1277	DL_OBJS="tclLoadAout.o"
	1278	DL_LIBS=""
	1279	LDFLAGS="$LDFLAGS -Wl,-D,08000000"
	1280	CC_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
	1281	LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
	1282	SHARED_LIB_SUFFIX='${VERSION}\$\{DBGX\}.a'
	1283	;;
	1284	IRIX-5.*)
	1285	SHLIB_CFLAGS=""
	1286	SHLIB_LD="ld -shared -rdata_shared"
	1287	SHLIB_LD_LIBS='${LIBS}'
	1288	SHLIB_SUFFIX=".so"
	1289	DL_OBJS="tclLoadDl.o"
	1290	DL_LIBS=""
	1291	CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
	1292	LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'
	1293	;;
	1294	IRIX-6.*)
	1295	SHLIB_CFLAGS=""
	1296	SHLIB_LD="ld -n32 -shared -rdata_shared"
	1297	SHLIB_LD_LIBS='${LIBS}'
	1298	SHLIB_SUFFIX=".so"
	1299	DL_OBJS="tclLoadDl.o"
	1300	DL_LIBS=""
	1301	CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
	1302	LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'
	1303	if test "$GCC" = "yes" ; then
	1304	CFLAGS="$CFLAGS -mabi=n32"
	1305	LDFLAGS="$LDFLAGS -mabi=n32"
	1306	else
	1307	case $system in
	1308	IRIX-6.3)
	1309	# Use to build 6.2 compatible binaries on 6.3.
	1310	CFLAGS="$CFLAGS -n32 -D_OLD_TERMIOS"
	1311	;;
	1312	*)
	1313	CFLAGS="$CFLAGS -n32"
	1314	;;
	1315	esac
	1316	LDFLAGS="$LDFLAGS -n32"
	1317	fi
	1318	;;
	1319	IRIX64-6.*)
	1320	SHLIB_CFLAGS=""
	1321	SHLIB_LD="ld -n32 -shared -rdata_shared"
	1322	SHLIB_LD_LIBS='${LIBS}'
	1323	SHLIB_SUFFIX=".so"
	1324	DL_OBJS="tclLoadDl.o"
	1325	DL_LIBS=""
	1326	CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
	1327	LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'
	1328
	1329	# Check to enable 64-bit flags for compiler/linker
	1330
	1331	if test "$do64bit" = "yes" ; then
	1332	if test "$GCC" = "yes" ; then
	1333	AC_MSG_WARN([64bit mode not supported by gcc])
	1334	else
	1335	do64bit_ok=yes
	1336	SHLIB_LD="ld -64 -shared -rdata_shared"
	1337	CFLAGS="$CFLAGS -64"
	1338	LDFLAGS="$LDFLAGS -64"
	1339	fi
	1340	fi
	1341	;;
	1342	Linux*)
	1343	SHLIB_CFLAGS="-fPIC"
	1344	SHLIB_LD_LIBS='${LIBS}'
	1345	SHLIB_SUFFIX=".so"
	1346
	1347	CFLAGS_OPTIMIZE=-O2
	1348	# egcs-2.91.66 on Redhat Linux 6.0 generates lots of warnings
	1349	# when you inline the string and math operations. Turn this off to
	1350	# get rid of the warnings.
	1351	#CFLAGS_OPTIMIZE="${CFLAGS_OPTIMIZE} -D__NO_STRING_INLINES -D__NO_MATH_INLINES"
	1352
	1353	if test "$have_dl" = yes; then
	1354	SHLIB_LD='${CC} -shared ${CFLAGS} ${LDFLAGS}'
	1355	DL_OBJS="tclLoadDl.o"
	1356	DL_LIBS="-ldl"
	1357	LDFLAGS="$LDFLAGS -Wl,--export-dynamic"
	1358	CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
	1359	LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
	1360	else
	1361	AC_CHECK_HEADER(dld.h, [
	1362	SHLIB_LD="ld -shared"
	1363	DL_OBJS="tclLoadDld.o"
	1364	DL_LIBS="-ldld"
	1365	CC_SEARCH_FLAGS=""
	1366	LD_SEARCH_FLAGS=""])
	1367	fi
	1368	if test "`uname -m`" = "alpha" ; then
	1369	CFLAGS="$CFLAGS -mieee"
	1370	fi
	1371	if test $do64bit = yes; then
	1372	AC_CACHE_CHECK([if compiler accepts -m64 flag], tcl_cv_cc_m64, [
	1373	hold_cflags=$CFLAGS
	1374	CFLAGS="$CFLAGS -m64"
	1375	AC_TRY_LINK(,, tcl_cv_cc_m64=yes, tcl_cv_cc_m64=no)
	1376	CFLAGS=$hold_cflags])
	1377	if test $tcl_cv_cc_m64 = yes; then
	1378	CFLAGS="$CFLAGS -m64"
	1379	do64bit_ok=yes
	1380	fi
	1381	fi
	1382
	1383	# The combo of gcc + glibc has a bug related
	1384	# to inlining of functions like strtod(). The
	1385	# -fno-builtin flag should address this problem
	1386	# but it does not work. The -fno-inline flag
	1387	# is kind of overkill but it works.
	1388	# Disable inlining only when one of the
	1389	# files in compat/*.c is being linked in.
	1390	if test x"${LIBOBJS}" != x ; then
	1391	CFLAGS="$CFLAGS -fno-inline"
	1392	fi
	1393
	1394	# XIM peeking works under XFree86.
	1395	AC_DEFINE(PEEK_XCLOSEIM)
	1396
	1397	;;
	1398	GNU*)
	1399	SHLIB_CFLAGS="-fPIC"
	1400	SHLIB_LD_LIBS='${LIBS}'
	1401	SHLIB_SUFFIX=".so"
	1402
	1403	if test "$have_dl" = yes; then
	1404	SHLIB_LD="${CC} -shared"
	1405	DL_OBJS=""
	1406	DL_LIBS="-ldl"
	1407	LDFLAGS="$LDFLAGS -Wl,--export-dynamic"
	1408	CC_SEARCH_FLAGS=""
	1409	LD_SEARCH_FLAGS=""
	1410	else
	1411	AC_CHECK_HEADER(dld.h, [
	1412	SHLIB_LD="ld -shared"
	1413	DL_OBJS=""
	1414	DL_LIBS="-ldld"
	1415	CC_SEARCH_FLAGS=""
	1416	LD_SEARCH_FLAGS=""])
	1417	fi
	1418	if test "`uname -m`" = "alpha" ; then
	1419	CFLAGS="$CFLAGS -mieee"
	1420	fi
	1421	;;
	1422	Lynx*)
	1423	SHLIB_CFLAGS="-fPIC"
	1424	SHLIB_LD_LIBS='${LIBS}'
	1425	SHLIB_SUFFIX=".so"
	1426	CFLAGS_OPTIMIZE=-02
	1427	SHLIB_LD="${CC} -shared "
	1428	DL_OBJS="tclLoadDl.o"
	1429	DL_LIBS="-mshared -ldl"
	1430	LD_FLAGS="-Wl,--export-dynamic"
	1431	CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
	1432	LD_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
	1433	;;
	1434	MP-RAS-02*)
	1435	SHLIB_CFLAGS="-K PIC"
	1436	SHLIB_LD="cc -G"
	1437	SHLIB_LD_LIBS=""
	1438	SHLIB_SUFFIX=".so"
	1439	DL_OBJS="tclLoadDl.o"
	1440	DL_LIBS="-ldl"
	1441	CC_SEARCH_FLAGS=""
	1442	LD_SEARCH_FLAGS=""
	1443	;;
	1444	MP-RAS-*)
	1445	SHLIB_CFLAGS="-K PIC"
	1446	SHLIB_LD="cc -G"
	1447	SHLIB_LD_LIBS=""
	1448	SHLIB_SUFFIX=".so"
	1449	DL_OBJS="tclLoadDl.o"
	1450	DL_LIBS="-ldl"
	1451	LDFLAGS="$LDFLAGS -Wl,-Bexport"
	1452	CC_SEARCH_FLAGS=""
	1453	LD_SEARCH_FLAGS=""
	1454	;;
	1455	NetBSD-\|FreeBSD-[[1-2]].)
	1456	# Not available on all versions: check for include file.
	1457	AC_CHECK_HEADER(dlfcn.h, [
	1458	# NetBSD/SPARC needs -fPIC, -fpic will not do.
	1459	SHLIB_CFLAGS="-fPIC"
	1460	SHLIB_LD="ld -Bshareable -x"
	1461	SHLIB_LD_LIBS='${LIBS}'
	1462	SHLIB_SUFFIX=".so"
	1463	DL_OBJS="tclLoadDl.o"
	1464	DL_LIBS=""
	1465	CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
	1466	LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'
	1467	AC_CACHE_CHECK([for ELF], tcl_cv_ld_elf, [
	1468	AC_EGREP_CPP(yes, [
	1469	#ifdef __ELF__
	1470	yes
	1471	#endif
	1472	], tcl_cv_ld_elf=yes, tcl_cv_ld_elf=no)])
	1473	if test $tcl_cv_ld_elf = yes; then
	1474	SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.so'
	1475	else
	1476	SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.so.1.0'
	1477	fi
	1478	], [
	1479	SHLIB_CFLAGS=""
	1480	SHLIB_LD="echo tclLdAout $CC \{$SHLIB_CFLAGS\} \| `pwd`/tclsh -r"
	1481	SHLIB_LD_LIBS='${LIBS}'
	1482	SHLIB_SUFFIX=".a"
	1483	DL_OBJS="tclLoadAout.o"
	1484	DL_LIBS=""
	1485	CC_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
	1486	LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
	1487	SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.a'
	1488	])
	1489
	1490	# FreeBSD doesn't handle version numbers with dots.
	1491
	1492	UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.a'
	1493	TCL_LIB_VERSIONS_OK=nodots
	1494	;;
	1495	OpenBSD-*)
	1496	case `arch -s` in
	1497	m88k\|vax)
	1498	SHLIB_CFLAGS=""
	1499	SHLIB_LD="echo tclLdAout $CC \{$SHLIB_CFLAGS\} \| `pwd`/tclsh -r"
	1500	SHLIB_LD_LIBS='${LIBS}'
	1501	SHLIB_SUFFIX=".a"
	1502	DL_OBJS="tclLoadAout.o"
	1503	DL_LIBS=""
	1504	LDFLAGS=""
	1505	CC_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
	1506	LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
	1507	SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.a'
	1508	;;
	1509	*)
	1510	# OpenBSD/SPARC[64] needs -fPIC, -fpic will not do.
	1511	case `machine` in
	1512	sparc\|sparc64)
	1513	SHLIB_CFLAGS="-fPIC";;
	1514	*)
	1515	SHLIB_CFLAGS="-fpic";;
	1516	esac
	1517	SHLIB_LD="${CC} -shared ${SHLIB_CFLAGS}"
	1518	SHLIB_LD_LIBS='${LIBS}'
	1519	SHLIB_SUFFIX=".so"
	1520	DL_OBJS="tclLoadDl.o"
	1521	DL_LIBS=""
	1522	CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
	1523	LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
	1524	SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.so.1.0'
	1525	AC_CACHE_CHECK([for ELF], tcl_cv_ld_elf, [
	1526	AC_EGREP_CPP(yes, [
	1527	#ifdef __ELF__
	1528	yes
	1529	#endif
	1530	], tcl_cv_ld_elf=yes, tcl_cv_ld_elf=no)])
	1531	if test $tcl_cv_ld_elf = yes; then
	1532	LDFLAGS=-Wl,-export-dynamic
	1533	else
	1534	LDFLAGS=""
	1535	fi
	1536	;;
	1537	esac
	1538
	1539	# OpenBSD doesn't do version numbers with dots.
	1540	UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.a'
	1541	TCL_LIB_VERSIONS_OK=nodots
	1542	;;
	1543	FreeBSD-*)
	1544	# FreeBSD 3.* and greater have ELF.
	1545	SHLIB_CFLAGS="-fPIC"
	1546	SHLIB_LD="ld -Bshareable -x"
	1547	SHLIB_LD_LIBS='${LIBS}'
	1548	SHLIB_SUFFIX=".so"
	1549	DL_OBJS="tclLoadDl.o"
	1550	DL_LIBS=""
	1551	LDFLAGS="$LDFLAGS -export-dynamic"
	1552	CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
	1553	LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'
	1554	if test "${TCL_THREADS}" = "1" ; then
	1555	# The -pthread needs to go in the CFLAGS, not LIBS
	1556	LIBS=`echo $LIBS \| sed s/-pthread//`
	1557	CFLAGS="$CFLAGS -pthread"
	1558	LDFLAGS="$LDFLAGS -pthread"
	1559	fi
	1560	case $system in
	1561	FreeBSD-3.*)
	1562	# FreeBSD-3 doesn't handle version numbers with dots.
	1563	UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.a'
	1564	SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.so'
	1565	TCL_LIB_VERSIONS_OK=nodots
	1566	;;
	1567	esac
	1568	;;
	1569	Darwin-*)
	1570	CFLAGS_OPTIMIZE="-Os"
	1571	SHLIB_CFLAGS="-fno-common"
	1572	# To avoid discrepancies between what headers configure sees during
	1573	# preprocessing tests and compiling tests, move any -isysroot and
	1574	# -mmacosx-version-min flags from CFLAGS to CPPFLAGS:
	1575	CPPFLAGS="${CPPFLAGS} `echo " ${CFLAGS}" \| \
	1576	awk 'BEGIN {FS=" +-";ORS=" "}; {for (i=2;i<=NF;i++) \
	1577	if ([$]i~/^(isysroot\|mmacosx-version-min)/) print "-"[$]i}'`"
	1578	CFLAGS="`echo " ${CFLAGS}" \| \
	1579	awk 'BEGIN {FS=" +-";ORS=" "}; {for (i=2;i<=NF;i++) \
	1580	if (!([$]i~/^(isysroot\|mmacosx-version-min)/)) print "-"[$]i}'`"
	1581	if test $do64bit = yes; then
	1582	case `arch` in
	1583	ppc)
	1584	AC_CACHE_CHECK([if compiler accepts -arch ppc64 flag],
	1585	tcl_cv_cc_arch_ppc64, [
	1586	hold_cflags=$CFLAGS
	1587	CFLAGS="$CFLAGS -arch ppc64 -mpowerpc64 -mcpu=G5"
	1588	AC_TRY_LINK(,, tcl_cv_cc_arch_ppc64=yes,
	1589	tcl_cv_cc_arch_ppc64=no)
	1590	CFLAGS=$hold_cflags])
	1591	if test $tcl_cv_cc_arch_ppc64 = yes; then
	1592	CFLAGS="$CFLAGS -arch ppc64 -mpowerpc64 -mcpu=G5"
	1593	do64bit_ok=yes
	1594	fi;;
	1595	i386)
	1596	AC_CACHE_CHECK([if compiler accepts -arch x86_64 flag],
	1597	tcl_cv_cc_arch_x86_64, [
	1598	hold_cflags=$CFLAGS
	1599	CFLAGS="$CFLAGS -arch x86_64"
	1600	AC_TRY_LINK(,, tcl_cv_cc_arch_x86_64=yes,
	1601	tcl_cv_cc_arch_x86_64=no)
	1602	CFLAGS=$hold_cflags])
	1603	if test $tcl_cv_cc_arch_x86_64 = yes; then
	1604	CFLAGS="$CFLAGS -arch x86_64"
	1605	do64bit_ok=yes
	1606	fi;;
	1607	*)
	1608	AC_MSG_WARN([Don't know how enable 64-bit on architecture `arch`]);;
	1609	esac
	1610	else
	1611	# Check for combined 32-bit and 64-bit fat build
	1612	echo "$CFLAGS " \| grep -E -q -- '-arch (ppc64\|x86_64) ' && \
	1613	echo "$CFLAGS " \| grep -E -q -- '-arch (ppc\|i386) ' && \
	1614	fat_32_64=yes
	1615	fi
	1616	SHLIB_LD='${CC} -dynamiclib ${CFLAGS} ${LDFLAGS}'
	1617	AC_CACHE_CHECK([if ld accepts -single_module flag], tcl_cv_ld_single_module, [
	1618	hold_ldflags=$LDFLAGS
	1619	LDFLAGS="$LDFLAGS -dynamiclib -Wl,-single_module"
	1620	AC_TRY_LINK(, [int i;], tcl_cv_ld_single_module=yes, tcl_cv_ld_single_module=no)
	1621	LDFLAGS=$hold_ldflags])
	1622	if test $tcl_cv_ld_single_module = yes; then
	1623	SHLIB_LD="${SHLIB_LD} -Wl,-single_module"
	1624	fi
	1625	SHLIB_LD_LIBS='${LIBS}'
	1626	SHLIB_SUFFIX=".dylib"
	1627	DL_OBJS="tclLoadDyld.o"
	1628	DL_LIBS=""
	1629	# Don't use -prebind when building for Mac OS X 10.4 or later only:
	1630	test "`echo "${MACOSX_DEPLOYMENT_TARGET}" \| awk -F '10\\.' '{print int([$]2)}'`" -lt 4 -a \
	1631	"`echo "${CPPFLAGS}" \| awk -F '-mmacosx-version-min=10\\.' '{print int([$]2)}'`" -lt 4 && \
	1632	LDFLAGS="$LDFLAGS -prebind"
	1633	LDFLAGS="$LDFLAGS -headerpad_max_install_names"
	1634	AC_CACHE_CHECK([if ld accepts -search_paths_first flag], tcl_cv_ld_search_paths_first, [
	1635	hold_ldflags=$LDFLAGS
	1636	LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
	1637	AC_TRY_LINK(, [int i;], tcl_cv_ld_search_paths_first=yes, tcl_cv_ld_search_paths_first=no)
	1638	LDFLAGS=$hold_ldflags])
	1639	if test $tcl_cv_ld_search_paths_first = yes; then
	1640	LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
	1641	fi
	1642	CC_SEARCH_FLAGS=""
	1643	LD_SEARCH_FLAGS=""
	1644	LD_LIBRARY_PATH_VAR="DYLD_LIBRARY_PATH"
	1645	PLAT_OBJS=\$$MAC\_OSX_OBJS$
	1646	PLAT_SRCS=\$$MAC\_OSX_SRCS$
	1647	AC_MSG_CHECKING([whether to use CoreFoundation])
	1648	AC_ARG_ENABLE(corefoundation, [ --enable-corefoundation use CoreFoundation API [--enable-corefoundation]],
	1649	[tcl_corefoundation=$enableval], [tcl_corefoundation=yes])
	1650	AC_MSG_RESULT([$tcl_corefoundation])
	1651	if test $tcl_corefoundation = yes; then
	1652	AC_CACHE_CHECK([for CoreFoundation.framework], tcl_cv_lib_corefoundation, [
	1653	hold_libs=$LIBS
	1654	if test "$fat_32_64" = yes; then for v in CFLAGS CPPFLAGS LDFLAGS; do
	1655	# On Tiger there is no 64-bit CF, so remove 64-bit archs
	1656	# from CFLAGS et al. while testing for presence of CF.
	1657	# 64-bit CF is disabled in tclUnixPort.h if necessary.
	1658	eval 'hold_'$v'="$'$v'";'$v'="`echo "$'$v' "\|sed -e "s/-arch ppc64 / /g" -e "s/-arch x86_64 / /g"`"'
	1659	done; fi
	1660	LIBS="$LIBS -framework CoreFoundation"
	1661	AC_TRY_LINK([#include <CoreFoundation/CoreFoundation.h>],
	1662	[CFBundleRef b = CFBundleGetMainBundle();],
	1663	tcl_cv_lib_corefoundation=yes, tcl_cv_lib_corefoundation=no)
	1664	if test "$fat_32_64" = yes; then for v in CFLAGS CPPFLAGS LDFLAGS; do
	1665	eval $v'="$hold_'$v'"'
	1666	done; fi; LIBS=$hold_libs])
	1667	if test $tcl_cv_lib_corefoundation = yes; then
	1668	LIBS="$LIBS -framework CoreFoundation"
	1669	AC_DEFINE(HAVE_COREFOUNDATION)
	1670	else
	1671	tcl_corefoundation=no
	1672	fi
	1673	if test "$fat_32_64" = yes -a $tcl_corefoundation = yes; then
	1674	AC_CACHE_CHECK([for 64-bit CoreFoundation], tcl_cv_lib_corefoundation_64, [
	1675	for v in CFLAGS CPPFLAGS LDFLAGS; do
	1676	eval 'hold_'$v'="$'$v'";'$v'="`echo "$'$v' "\|sed -e "s/-arch ppc / /g" -e "s/-arch i386 / /g"`"'
	1677	done
	1678	AC_TRY_LINK([#include <CoreFoundation/CoreFoundation.h>],
	1679	[CFBundleRef b = CFBundleGetMainBundle();],
	1680	tcl_cv_lib_corefoundation_64=yes, tcl_cv_lib_corefoundation_64=no)
	1681	for v in CFLAGS CPPFLAGS LDFLAGS; do
	1682	eval $v'="$hold_'$v'"'
	1683	done])
	1684	if test $tcl_cv_lib_corefoundation_64 = no; then
	1685	AC_DEFINE(NO_COREFOUNDATION_64)
	1686	fi
	1687	fi
	1688	fi
	1689	AC_DEFINE(MAC_OSX_TCL)
	1690	;;
	1691	NEXTSTEP-*)
	1692	SHLIB_CFLAGS=""
	1693	SHLIB_LD="cc -nostdlib -r"
	1694	SHLIB_LD_LIBS=""
	1695	SHLIB_SUFFIX=".so"
	1696	DL_OBJS="tclLoadNext.o"
	1697	DL_LIBS=""
	1698	CC_SEARCH_FLAGS=""
	1699	LD_SEARCH_FLAGS=""
	1700	;;
	1701	OS/390-*)
	1702	CFLAGS_OPTIMIZE="" # Optimizer is buggy
	1703	AC_DEFINE(_OE_SOCKETS) # needed in sys/socket.h
	1704	;;
	1705	OSF1-1.0\|OSF1-1.1\|OSF1-1.2)
	1706	# OSF/1 1.[012] from OSF, and derivatives, including Paragon OSF/1
	1707	SHLIB_CFLAGS=""
	1708	# Hack: make package name same as library name
	1709	SHLIB_LD='ld -R -export $@:'
	1710	SHLIB_LD_LIBS=""
	1711	SHLIB_SUFFIX=".so"
	1712	DL_OBJS="tclLoadOSF.o"
	1713	DL_LIBS=""
	1714	CC_SEARCH_FLAGS=""
	1715	LD_SEARCH_FLAGS=""
	1716	;;
	1717	OSF1-1.*)
	1718	# OSF/1 1.3 from OSF using ELF, and derivatives, including AD2
	1719	SHLIB_CFLAGS="-fPIC"
	1720	if test "$SHARED_BUILD" = "1" ; then
	1721	SHLIB_LD="ld -shared"
	1722	else
	1723	SHLIB_LD="ld -non_shared"
	1724	fi
	1725	SHLIB_LD_LIBS=""
	1726	SHLIB_SUFFIX=".so"
	1727	DL_OBJS="tclLoadDl.o"
	1728	DL_LIBS=""
	1729	CC_SEARCH_FLAGS=""
	1730	LD_SEARCH_FLAGS=""
	1731	;;
	1732	OSF1-V*)
	1733	# Digital OSF/1
	1734	SHLIB_CFLAGS=""
	1735	if test "$SHARED_BUILD" = "1" ; then
	1736	SHLIB_LD='ld -shared -expect_unresolved "*"'
	1737	else
	1738	SHLIB_LD='ld -non_shared -expect_unresolved "*"'
	1739	fi
	1740	SHLIB_LD_LIBS=""
	1741	SHLIB_SUFFIX=".so"
	1742	DL_OBJS="tclLoadDl.o"
	1743	DL_LIBS=""
	1744	CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
	1745	LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'
	1746	if test "$GCC" = "yes" ; then
	1747	CFLAGS="$CFLAGS -mieee"
	1748	else
	1749	CFLAGS="$CFLAGS -DHAVE_TZSET -std1 -ieee"
	1750	fi
	1751	# see pthread_intro(3) for pthread support on osf1, k.furukawa
	1752	if test "${TCL_THREADS}" = "1" ; then
	1753	CFLAGS="$CFLAGS -DHAVE_PTHREAD_ATTR_SETSTACKSIZE"
	1754	CFLAGS="$CFLAGS -DTCL_THREAD_STACK_MIN=PTHREAD_STACK_MIN*64"
	1755	LIBS=`echo $LIBS \| sed s/-lpthreads//`
	1756	if test "$GCC" = "yes" ; then
	1757	LIBS="$LIBS -lpthread -lmach -lexc"
	1758	else
	1759	CFLAGS="$CFLAGS -pthread"
	1760	LDFLAGS="$LDFLAGS -pthread"
	1761	fi
	1762	fi
	1763
	1764	;;
	1765	QNX-6*)
	1766	# QNX RTP
	1767	# This may work for all QNX, but it was only reported for v6.
	1768	SHLIB_CFLAGS="-fPIC"
	1769	SHLIB_LD="ld -Bshareable -x"
	1770	SHLIB_LD_LIBS=""
	1771	SHLIB_SUFFIX=".so"
	1772	DL_OBJS="tclLoadDl.o"
	1773	# dlopen is in -lc on QNX
	1774	DL_LIBS=""
	1775	CC_SEARCH_FLAGS=""
	1776	LD_SEARCH_FLAGS=""
	1777	;;
	1778	RISCos-*)
	1779	SHLIB_CFLAGS="-G 0"
	1780	SHLIB_LD="echo tclLdAout $CC \{$SHLIB_CFLAGS\} \| `pwd`/tclsh -r -G 0"
	1781	SHLIB_LD_LIBS='${LIBS}'
	1782	SHLIB_SUFFIX=".a"
	1783	DL_OBJS="tclLoadAout.o"
	1784	DL_LIBS=""
	1785	LDFLAGS="$LDFLAGS -Wl,-D,08000000"
	1786	CC_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
	1787	LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
	1788	;;
	1789	SCO_SV-3.2*)
	1790	# Note, dlopen is available only on SCO 3.2.5 and greater. However,
	1791	# this test works, since "uname -s" was non-standard in 3.2.4 and
	1792	# below.
	1793	if test "$GCC" = "yes" ; then
	1794	SHLIB_CFLAGS="-fPIC -melf"
	1795	LDFLAGS="$LDFLAGS -melf -Wl,-Bexport"
	1796	else
	1797	SHLIB_CFLAGS="-Kpic -belf"
	1798	LDFLAGS="$LDFLAGS -belf -Wl,-Bexport"
	1799	fi
	1800	SHLIB_LD="ld -G"
	1801	SHLIB_LD_LIBS=""
	1802	SHLIB_SUFFIX=".so"
	1803	DL_OBJS="tclLoadDl.o"
	1804	DL_LIBS=""
	1805	CC_SEARCH_FLAGS=""
	1806	LD_SEARCH_FLAGS=""
	1807	;;
	1808	SINIX5.4)
	1809	SHLIB_CFLAGS="-K PIC"
	1810	SHLIB_LD="cc -G"
	1811	SHLIB_LD_LIBS=""
	1812	SHLIB_SUFFIX=".so"
	1813	DL_OBJS="tclLoadDl.o"
	1814	DL_LIBS="-ldl"
	1815	CC_SEARCH_FLAGS=""
	1816	LD_SEARCH_FLAGS=""
	1817	;;
	1818	SunOS-4*)
	1819	SHLIB_CFLAGS="-PIC"
	1820	SHLIB_LD="ld"
	1821	SHLIB_LD_LIBS=""
	1822	SHLIB_SUFFIX=".so"
	1823	DL_OBJS="tclLoadDl.o"
	1824	DL_LIBS="-ldl"
	1825	CC_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
	1826	LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
	1827
	1828	# SunOS can't handle version numbers with dots in them in library
	1829	# specs, like -ltcl7.5, so use -ltcl75 instead. Also, it
	1830	# requires an extra version number at the end of .so file names.
	1831	# So, the library has to have a name like libtcl75.so.1.0
	1832
	1833	SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.so.1.0'
	1834	UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.a'
	1835	TCL_LIB_VERSIONS_OK=nodots
	1836	;;
	1837	SunOS-5.[[0-6]])
	1838	# Careful to not let 5.10+ fall into this case
	1839
	1840	# Note: If _REENTRANT isn't defined, then Solaris
	1841	# won't define thread-safe library routines.
	1842
	1843	AC_DEFINE(_REENTRANT)
	1844	AC_DEFINE(_POSIX_PTHREAD_SEMANTICS)
	1845
	1846	SHLIB_CFLAGS="-KPIC"
	1847
	1848	# Note: need the LIBS below, otherwise Tk won't find Tcl's
	1849	# symbols when dynamically loaded into tclsh.
	1850
	1851	SHLIB_LD_LIBS='${LIBS}'
	1852	SHLIB_SUFFIX=".so"
	1853	DL_OBJS="tclLoadDl.o"
	1854	DL_LIBS="-ldl"
	1855	if test "$GCC" = "yes" ; then
	1856	SHLIB_LD="$CC -shared"
	1857	CC_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
	1858	LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
	1859	else
	1860	SHLIB_LD="/usr/ccs/bin/ld -G -z text"
	1861	CC_SEARCH_FLAGS='-R ${LIB_RUNTIME_DIR}'
	1862	LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
	1863	fi
	1864	;;
	1865	SunOS-5*)
	1866	# Note: If _REENTRANT isn't defined, then Solaris
	1867	# won't define thread-safe library routines.
	1868
	1869	AC_DEFINE(_REENTRANT)
	1870	AC_DEFINE(_POSIX_PTHREAD_SEMANTICS)
	1871
	1872	SHLIB_CFLAGS="-KPIC"
	1873
	1874	# Check to enable 64-bit flags for compiler/linker
	1875	if test "$do64bit" = "yes" ; then
	1876	arch=`isainfo`
	1877	if test "$arch" = "sparcv9 sparc" ; then
	1878	if test "$GCC" = "yes" ; then
	1879	if test "`gcc -dumpversion \| awk -F. '{print [$]1}'`" -lt "3" ; then
	1880	AC_MSG_WARN([64bit mode not supported with GCC < 3.2 on $system])
	1881	else
	1882	do64bit_ok=yes
	1883	CFLAGS="$CFLAGS -m64 -mcpu=v9"
	1884	LDFLAGS="$LDFLAGS -m64 -mcpu=v9"
	1885	SHLIB_CFLAGS="-fPIC"
	1886	fi
	1887	else
	1888	do64bit_ok=yes
	1889	if test "$do64bitVIS" = "yes" ; then
	1890	CFLAGS="$CFLAGS -xarch=v9a"
	1891	LDFLAGS="$LDFLAGS -xarch=v9a"
	1892	else
	1893	CFLAGS="$CFLAGS -xarch=v9"
	1894	LDFLAGS="$LDFLAGS -xarch=v9"
	1895	fi
	1896	# Solaris 64 uses this as well
	1897	#LD_LIBRARY_PATH_VAR="LD_LIBRARY_PATH_64"
	1898	fi
	1899	elif test "$arch" = "amd64 i386" ; then
	1900	if test "$GCC" = "yes" ; then
	1901	AC_MSG_WARN([64bit mode not supported with GCC on $system])
	1902	else
	1903	do64bit_ok=yes
	1904	CFLAGS="$CFLAGS -xarch=amd64"
	1905	LDFLAGS="$LDFLAGS -xarch=amd64"
	1906	fi
	1907	else
	1908	AC_MSG_WARN([64bit mode not supported for $arch])
	1909	fi
	1910	fi
	1911
	1912	# Note: need the LIBS below, otherwise Tk won't find Tcl's
	1913	# symbols when dynamically loaded into tclsh.
	1914
	1915	SHLIB_LD_LIBS='${LIBS}'
	1916	SHLIB_SUFFIX=".so"
	1917	DL_OBJS="tclLoadDl.o"
	1918	DL_LIBS="-ldl"
	1919	if test "$GCC" = "yes" ; then
	1920	SHLIB_LD="$CC -shared"
	1921	CC_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
	1922	LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
	1923	if test "$do64bit_ok" = "yes" ; then
	1924	# We need to specify -static-libgcc or we need to
	1925	# add the path to the sparv9 libgcc.
	1926	SHLIB_LD="$SHLIB_LD -m64 -mcpu=v9 -static-libgcc"
	1927	# for finding sparcv9 libgcc, get the regular libgcc
	1928	# path, remove so name and append 'sparcv9'
	1929	#v9gcclibdir="`gcc -print-file-name=libgcc_s.so` \| ..."
	1930	#CC_SEARCH_FLAGS="${CC_SEARCH_FLAGS},-R,$v9gcclibdir"
	1931	fi
	1932	else
	1933	case $system in
	1934	SunOS-5.[[1-9]][[0-9]]*)
	1935	SHLIB_LD='${CC} -G -z text';;
	1936	*)
	1937	SHLIB_LD="/usr/ccs/bin/ld -G -z text";;
	1938	esac
	1939	CC_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
	1940	LD_SEARCH_FLAGS='-R ${LIB_RUNTIME_DIR}'
	1941	fi
	1942	;;
	1943	ULTRIX-4.*)
	1944	SHLIB_CFLAGS="-G 0"
	1945	SHLIB_SUFFIX=".a"
	1946	SHLIB_LD="echo tclLdAout $CC \{$SHLIB_CFLAGS\} \| `pwd`/tclsh -r -G 0"
	1947	SHLIB_LD_LIBS='${LIBS}'
	1948	DL_OBJS="tclLoadAout.o"
	1949	DL_LIBS=""
	1950	LDFLAGS="$LDFLAGS -Wl,-D,08000000"
	1951	CC_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
	1952	LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
	1953	if test "$GCC" != "yes" ; then
	1954	CFLAGS="$CFLAGS -DHAVE_TZSET -std1"
	1955	fi
	1956	;;
	1957	UNIX_SV* \| UnixWare-5*)
	1958	SHLIB_CFLAGS="-KPIC"
	1959	SHLIB_LD="cc -G"
	1960	SHLIB_LD_LIBS=""
	1961	SHLIB_SUFFIX=".so"
	1962	DL_OBJS="tclLoadDl.o"
	1963	DL_LIBS="-ldl"
	1964	# Some UNIX_SV* systems (unixware 1.1.2 for example) have linkers
	1965	# that don't grok the -Bexport option. Test that it does.
	1966	AC_CACHE_CHECK([for ld accepts -Bexport flag], tcl_cv_ld_Bexport, [
	1967	hold_ldflags=$LDFLAGS
	1968	LDFLAGS="$LDFLAGS -Wl,-Bexport"
	1969	AC_TRY_LINK(, [int i;], tcl_cv_ld_Bexport=yes, tcl_cv_ld_Bexport=no)
	1970	LDFLAGS=$hold_ldflags])
	1971	if test $tcl_cv_ld_Bexport = yes; then
	1972	LDFLAGS="$LDFLAGS -Wl,-Bexport"
	1973	fi
	1974	CC_SEARCH_FLAGS=""
	1975	LD_SEARCH_FLAGS=""
	1976	;;
	1977	esac
	1978
	1979	if test "$do64bit" = "yes" -a "$do64bit_ok" = "no" ; then
	1980	AC_MSG_WARN([64bit support being disabled -- don't know magic for this platform])
	1981	fi
	1982
	1983	dnl # Add any CPPFLAGS set in the environment to our CFLAGS, but delay doing so
	1984	dnl # until the end of configure, as configure's compile and link tests use
	1985	dnl # both CPPFLAGS and CFLAGS (unlike our compile and link) but configure's
	1986	dnl # preprocessing tests use only CPPFLAGS.
	1987	SC_CONFIG_COMMANDS_PRE([CFLAGS="${CFLAGS} ${CPPFLAGS}"; CPPFLAGS=""])
	1988
	1989	# Step 4: If pseudo-static linking is in use (see K. B. Kenny, "Dynamic
	1990	# Loading for Tcl -- What Became of It?". Proc. 2nd Tcl/Tk Workshop,
	1991	# New Orleans, LA, Computerized Processes Unlimited, 1994), then we need
	1992	# to determine which of several header files defines the a.out file
	1993	# format (a.out.h, sys/exec.h, or sys/exec_aout.h). At present, we
	1994	# support only a file format that is more or less version-7-compatible.
	1995	# In particular,
	1996	# - a.out files must begin with `struct exec'.
	1997	# - the N_TXTOFF on the `struct exec' must compute the seek address
	1998	# of the text segment
	1999	# - The `struct exec' must contain a_magic, a_text, a_data, a_bss
	2000	# and a_entry fields.
	2001	# The following compilation should succeed if and only if either sys/exec.h
	2002	# or a.out.h is usable for the purpose.
	2003	#
	2004	# Note that the modified COFF format used on MIPS Ultrix 4.x is usable; the
	2005	# `struct exec' includes a second header that contains information that
	2006	# duplicates the v7 fields that are needed.
	2007
	2008	if test "x$DL_OBJS" = "xtclLoadAout.o" ; then
	2009	AC_CACHE_CHECK([sys/exec.h], tcl_cv_sysexec_h, [
	2010	AC_TRY_COMPILE([#include <sys/exec.h>],[
	2011	struct exec foo;
	2012	unsigned long seek;
	2013	int flag;
	2014	#if defined(__mips) \|\| defined(mips)
	2015	seek = N_TXTOFF (foo.ex_f, foo.ex_o);
	2016	#else
	2017	seek = N_TXTOFF (foo);
	2018	#endif
	2019	flag = (foo.a_magic == OMAGIC);
	2020	return foo.a_text + foo.a_data + foo.a_bss + foo.a_entry;
	2021	], tcl_cv_sysexec_h=usable, tcl_cv_sysexec_h=unusable)])
	2022	if test $tcl_cv_sysexec_h = usable; then
	2023	AC_DEFINE(USE_SYS_EXEC_H)
	2024	else
	2025	AC_CACHE_CHECK([a.out.h], tcl_cv_aout_h, [
	2026	AC_TRY_COMPILE([#include <a.out.h>],[
	2027	struct exec foo;
	2028	unsigned long seek;
	2029	int flag;
	2030	#if defined(__mips) \|\| defined(mips)
	2031	seek = N_TXTOFF (foo.ex_f, foo.ex_o);
	2032	#else
	2033	seek = N_TXTOFF (foo);
	2034	#endif
	2035	flag = (foo.a_magic == OMAGIC);
	2036	return foo.a_text + foo.a_data + foo.a_bss + foo.a_entry;
	2037	], tcl_cv_aout_h=usable, tcl_cv_aout_h=unusable)])
	2038	if test $tcl_cv_aout_h = usable; then
	2039	AC_DEFINE(USE_A_OUT_H)
	2040	else
	2041	AC_CACHE_CHECK([sys/exec_aout.h], tcl_cv_sysexecaout_h, [
	2042	AC_TRY_COMPILE([#include <sys/exec_aout.h>],[
	2043	struct exec foo;
	2044	unsigned long seek;
	2045	int flag;
	2046	#if defined(__mips) \|\| defined(mips)
	2047	seek = N_TXTOFF (foo.ex_f, foo.ex_o);
	2048	#else
	2049	seek = N_TXTOFF (foo);
	2050	#endif
	2051	flag = (foo.a_midmag == OMAGIC);
	2052	return foo.a_text + foo.a_data + foo.a_bss + foo.a_entry;
	2053	], tcl_cv_sysexecaout_h=usable, tcl_cv_sysexecaout_h=unusable)])
	2054	if test $tcl_cv_sysexecaout_h = usable; then
	2055	AC_DEFINE(USE_SYS_EXEC_AOUT_H)
	2056	else
	2057	DL_OBJS=""
	2058	fi
	2059	fi
	2060	fi
	2061	fi
	2062
	2063	# Step 5: disable dynamic loading if requested via a command-line switch.
	2064
	2065	AC_ARG_ENABLE(load, [ --disable-load disallow dynamic loading and "load" command],
	2066	[tcl_ok=$enableval], [tcl_ok=yes])
	2067	if test "$tcl_ok" = "no"; then
	2068	DL_OBJS=""
	2069	fi
	2070
	2071	if test "x$DL_OBJS" != "x" ; then
	2072	BUILD_DLTEST="\$(DLTEST_TARGETS)"
	2073	else
	2074	echo "Can't figure out how to do dynamic loading or shared libraries"
	2075	echo "on this system."
	2076	SHLIB_CFLAGS=""
	2077	SHLIB_LD=""
	2078	SHLIB_SUFFIX=""
	2079	DL_OBJS="tclLoadNone.o"
	2080	DL_LIBS=""
	2081	LDFLAGS="$LDFLAGS_ORIG"
	2082	CC_SEARCH_FLAGS=""
	2083	LD_SEARCH_FLAGS=""
	2084	BUILD_DLTEST=""
	2085	fi
	2086
	2087	# If we're running gcc, then change the C flags for compiling shared
	2088	# libraries to the right flags for gcc, instead of those for the
	2089	# standard manufacturer compiler.
	2090
	2091	if test "$DL_OBJS" != "tclLoadNone.o" ; then
	2092	if test "$GCC" = "yes" ; then
	2093	case $system in
	2094	AIX-*)
	2095	;;
	2096	BSD/OS*)
	2097	;;
	2098	IRIX*)
	2099	;;
	2100	NetBSD-\|FreeBSD-\|OpenBSD-*)
	2101	;;
	2102	Darwin-*)
	2103	;;
	2104	RISCos-*)
	2105	;;
	2106	SCO_SV-3.2*)
	2107	;;
	2108	ULTRIX-4.*)
	2109	;;
	2110	*)
	2111	SHLIB_CFLAGS="-fPIC"
	2112	;;
	2113	esac
	2114	fi
	2115	fi
	2116
	2117	if test "$SHARED_LIB_SUFFIX" = "" ; then
	2118	SHARED_LIB_SUFFIX='${VERSION}\$\{DBGX\}${SHLIB_SUFFIX}'
	2119	fi
	2120	if test "$UNSHARED_LIB_SUFFIX" = "" ; then
	2121	UNSHARED_LIB_SUFFIX='${VERSION}\$\{DBGX\}.a'
	2122	fi
	2123
	2124	if test "${SHARED_BUILD}" = "1" && test "${SHLIB_SUFFIX}" != "" ; then
	2125	LIB_SUFFIX=${SHARED_LIB_SUFFIX}
	2126	MAKE_LIB='${SHLIB_LD} -o [$]@ ${OBJS} ${SHLIB_LD_LIBS} ${TCL_SHLIB_LD_EXTRAS} ${TK_SHLIB_LD_EXTRAS} ${LD_SEARCH_FLAGS}'
	2127	INSTALL_LIB='$(INSTALL_LIBRARY) $(LIB_FILE) $(LIB_INSTALL_DIR)/$(LIB_FILE)'
	2128	else
	2129	LIB_SUFFIX=${UNSHARED_LIB_SUFFIX}
	2130
	2131	if test "$RANLIB" = "" ; then
	2132	MAKE_LIB='$(STLIB_LD) [$]@ ${OBJS}'
	2133	INSTALL_LIB='$(INSTALL_LIBRARY) $(LIB_FILE) $(LIB_INSTALL_DIR)/$(LIB_FILE)'
	2134	else
	2135	MAKE_LIB='${STLIB_LD} [$]@ ${OBJS} ; ${RANLIB} [$]@'
	2136	INSTALL_LIB='$(INSTALL_LIBRARY) $(LIB_FILE) $(LIB_INSTALL_DIR)/$(LIB_FILE) ; (cd $(LIB_INSTALL_DIR) ; $(RANLIB) $(LIB_FILE))'
	2137	fi
	2138
	2139	dnl Not at all clear what this was doing in Tcl's configure.ac
	2140	dnl or why it was needed was needed. In any event, this sort of
	2141	dnl things needs to be done in the big loop above.
	2142	dnl REMOVE THIS BLOCK LATER! (mdejong)
	2143	dnl case $system in
	2144	dnl BSD/OS*)
	2145	dnl ;;
	2146	dnl AIX-[[1-4]].*)
	2147	dnl ;;
	2148	dnl *)
	2149	dnl SHLIB_LD_LIBS=""
	2150	dnl ;;
	2151	dnl esac
	2152	fi
	2153
	2154
	2155	# Stub lib does not depend on shared/static configuration
	2156	if test "$RANLIB" = "" ; then
	2157	MAKE_STUB_LIB='${STLIB_LD} [$]@ ${STUB_LIB_OBJS}'
	2158	INSTALL_STUB_LIB='$(INSTALL_LIBRARY) $(STUB_LIB_FILE) $(LIB_INSTALL_DIR)/$(STUB_LIB_FILE)'
	2159	else
	2160	MAKE_STUB_LIB='${STLIB_LD} [$]@ ${STUB_LIB_OBJS} ; ${RANLIB} [$]@'
	2161	INSTALL_STUB_LIB='$(INSTALL_LIBRARY) $(STUB_LIB_FILE) $(LIB_INSTALL_DIR)/$(STUB_LIB_FILE) ; (cd $(LIB_INSTALL_DIR) ; $(RANLIB) $(STUB_LIB_FILE))'
	2162	fi
	2163
	2164
	2165	AC_SUBST(DL_LIBS)
	2166
	2167	AC_SUBST(DL_OBJS)
	2168	AC_SUBST(PLAT_OBJS)
	2169	AC_SUBST(PLAT_SRCS)
	2170	AC_SUBST(CFLAGS)
	2171	AC_SUBST(CFLAGS_DEBUG)
	2172	AC_SUBST(CFLAGS_OPTIMIZE)
	2173	AC_SUBST(CFLAGS_WARNING)
	2174
	2175	AC_SUBST(LDFLAGS)
	2176	AC_SUBST(LDFLAGS_DEBUG)
	2177	AC_SUBST(LDFLAGS_OPTIMIZE)
	2178	AC_SUBST(CC_SEARCH_FLAGS)
	2179	AC_SUBST(LD_SEARCH_FLAGS)
	2180
	2181	AC_SUBST(STLIB_LD)
	2182	AC_SUBST(SHLIB_LD)
	2183	AC_SUBST(TCL_SHLIB_LD_EXTRAS)
	2184	AC_SUBST(TK_SHLIB_LD_EXTRAS)
	2185	AC_SUBST(SHLIB_LD_LIBS)
	2186	AC_SUBST(SHLIB_CFLAGS)
	2187	AC_SUBST(SHLIB_SUFFIX)
	2188
	2189	AC_SUBST(MAKE_LIB)
	2190	AC_SUBST(MAKE_STUB_LIB)
	2191	AC_SUBST(INSTALL_LIB)
	2192	AC_SUBST(INSTALL_STUB_LIB)
	2193	AC_SUBST(RANLIB)
	2194	])
	2195
	2196	#--------------------------------------------------------------------
	2197	# SC_SERIAL_PORT
	2198	#
	2199	# Determine which interface to use to talk to the serial port.
	2200	# Note that #include lines must begin in leftmost column for
	2201	# some compilers to recognize them as preprocessor directives,
	2202	# and some build environments have stdin not pointing at a
	2203	# pseudo-terminal (usually /dev/null instead.)
	2204	#
	2205	# Arguments:
	2206	# none
	2207	#
	2208	# Results:
	2209	#
	2210	# Defines only one of the following vars:
	2211	# HAVE_SYS_MODEM_H
	2212	# USE_TERMIOS
	2213	# USE_TERMIO
	2214	# USE_SGTTY
	2215	#
	2216	#--------------------------------------------------------------------
	2217
	2218	AC_DEFUN([SC_SERIAL_PORT], [
	2219	AC_CHECK_HEADERS(sys/modem.h)
	2220	AC_CACHE_CHECK([termios vs. termio vs. sgtty], tcl_cv_api_serial, [
	2221	AC_TRY_RUN([
	2222	#include <termios.h>
	2223
	2224	int main() {
	2225	struct termios t;
	2226	if (tcgetattr(0, &t) == 0) {
	2227	cfsetospeed(&t, 0);
	2228	t.c_cflag \|= PARENB \| PARODD \| CSIZE \| CSTOPB;
	2229	return 0;
	2230	}
	2231	return 1;
	2232	}], tcl_cv_api_serial=termios, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
	2233	if test $tcl_cv_api_serial = no ; then
	2234	AC_TRY_RUN([
	2235	#include <termio.h>
	2236
	2237	int main() {
	2238	struct termio t;
	2239	if (ioctl(0, TCGETA, &t) == 0) {
	2240	t.c_cflag \|= CBAUD \| PARENB \| PARODD \| CSIZE \| CSTOPB;
	2241	return 0;
	2242	}
	2243	return 1;
	2244	}], tcl_cv_api_serial=termio, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
	2245	fi
	2246	if test $tcl_cv_api_serial = no ; then
	2247	AC_TRY_RUN([
	2248	#include <sgtty.h>
	2249
	2250	int main() {
	2251	struct sgttyb t;
	2252	if (ioctl(0, TIOCGETP, &t) == 0) {
	2253	t.sg_ospeed = 0;
	2254	t.sg_flags \|= ODDP \| EVENP \| RAW;
	2255	return 0;
	2256	}
	2257	return 1;
	2258	}], tcl_cv_api_serial=sgtty, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
	2259	fi
	2260	if test $tcl_cv_api_serial = no ; then
	2261	AC_TRY_RUN([
	2262	#include <termios.h>
	2263	#include <errno.h>
	2264
	2265	int main() {
	2266	struct termios t;
	2267	if (tcgetattr(0, &t) == 0
	2268	\|\| errno == ENOTTY \|\| errno == ENXIO \|\| errno == EINVAL) {
	2269	cfsetospeed(&t, 0);
	2270	t.c_cflag \|= PARENB \| PARODD \| CSIZE \| CSTOPB;
	2271	return 0;
	2272	}
	2273	return 1;
	2274	}], tcl_cv_api_serial=termios, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
	2275	fi
	2276	if test $tcl_cv_api_serial = no; then
	2277	AC_TRY_RUN([
	2278	#include <termio.h>
	2279	#include <errno.h>
	2280
	2281	int main() {
	2282	struct termio t;
	2283	if (ioctl(0, TCGETA, &t) == 0
	2284	\|\| errno == ENOTTY \|\| errno == ENXIO \|\| errno == EINVAL) {
	2285	t.c_cflag \|= CBAUD \| PARENB \| PARODD \| CSIZE \| CSTOPB;
	2286	return 0;
	2287	}
	2288	return 1;
	2289	}], tcl_cv_api_serial=termio, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
	2290	fi
	2291	if test $tcl_cv_api_serial = no; then
	2292	AC_TRY_RUN([
	2293	#include <sgtty.h>
	2294	#include <errno.h>
	2295
	2296	int main() {
	2297	struct sgttyb t;
	2298	if (ioctl(0, TIOCGETP, &t) == 0
	2299	\|\| errno == ENOTTY \|\| errno == ENXIO \|\| errno == EINVAL) {
	2300	t.sg_ospeed = 0;
	2301	t.sg_flags \|= ODDP \| EVENP \| RAW;
	2302	return 0;
	2303	}
	2304	return 1;
	2305	}], tcl_cv_api_serial=sgtty, tcl_cv_api_serial=none, tcl_cv_api_serial=none)
	2306	fi])
	2307	case $tcl_cv_api_serial in
	2308	termios) AC_DEFINE(USE_TERMIOS);;
	2309	termio) AC_DEFINE(USE_TERMIO);;
	2310	sgtty) AC_DEFINE(USE_SGTTY);;
	2311	esac
	2312	])
	2313
	2314	#--------------------------------------------------------------------
	2315	# SC_MISSING_POSIX_HEADERS
	2316	#
	2317	# Supply substitutes for missing POSIX header files. Special
	2318	# notes:
	2319	# - stdlib.h doesn't define strtol, strtoul, or
	2320	# strtod insome versions of SunOS
	2321	# - some versions of string.h don't declare procedures such
	2322	# as strstr
	2323	#
	2324	# Arguments:
	2325	# none
	2326	#
	2327	# Results:
	2328	#
	2329	# Defines some of the following vars:
	2330	# NO_DIRENT_H
	2331	# NO_ERRNO_H
	2332	# NO_VALUES_H
	2333	# HAVE_LIMITS_H or NO_LIMITS_H
	2334	# NO_STDLIB_H
	2335	# NO_STRING_H
	2336	# NO_SYS_WAIT_H
	2337	# NO_DLFCN_H
	2338	# HAVE_UNISTD_H
	2339	# HAVE_SYS_PARAM_H
	2340	#
	2341	# HAVE_STRING_H ?
	2342	#
	2343	#--------------------------------------------------------------------
	2344
	2345	AC_DEFUN([SC_MISSING_POSIX_HEADERS], [
	2346	AC_CACHE_CHECK([dirent.h], tcl_cv_dirent_h, [
	2347	AC_TRY_LINK([#include <sys/types.h>
	2348	#include <dirent.h>], [
	2349	#ifndef _POSIX_SOURCE
	2350	# ifdef __Lynx__
	2351	/*
	2352	* Generate compilation error to make the test fail: Lynx headers
	2353	* are only valid if really in the POSIX environment.
	2354	*/
	2355
	2356	missing_procedure();
	2357	# endif
	2358	#endif
	2359	DIR *d;
	2360	struct dirent *entryPtr;
	2361	char *p;
	2362	d = opendir("foobar");
	2363	entryPtr = readdir(d);
	2364	p = entryPtr->d_name;
	2365	closedir(d);
	2366	], tcl_cv_dirent_h=yes, tcl_cv_dirent_h=no)])
	2367
	2368	if test $tcl_cv_dirent_h = no; then
	2369	AC_DEFINE(NO_DIRENT_H)
	2370	fi
	2371
	2372	AC_CHECK_HEADER(errno.h, , [AC_DEFINE(NO_ERRNO_H)])
	2373	AC_CHECK_HEADER(float.h, , [AC_DEFINE(NO_FLOAT_H)])
	2374	AC_CHECK_HEADER(values.h, , [AC_DEFINE(NO_VALUES_H)])
	2375	AC_CHECK_HEADER(limits.h,
	2376	[AC_DEFINE(HAVE_LIMITS_H)], [AC_DEFINE(NO_LIMITS_H)])
	2377	AC_CHECK_HEADER(stdlib.h, tcl_ok=1, tcl_ok=0)
	2378	AC_EGREP_HEADER(strtol, stdlib.h, , tcl_ok=0)
	2379	AC_EGREP_HEADER(strtoul, stdlib.h, , tcl_ok=0)
	2380	AC_EGREP_HEADER(strtod, stdlib.h, , tcl_ok=0)
	2381	if test $tcl_ok = 0; then
	2382	AC_DEFINE(NO_STDLIB_H)
	2383	fi
	2384	AC_CHECK_HEADER(string.h, tcl_ok=1, tcl_ok=0)
	2385	AC_EGREP_HEADER(strstr, string.h, , tcl_ok=0)
	2386	AC_EGREP_HEADER(strerror, string.h, , tcl_ok=0)
	2387
	2388	# See also memmove check below for a place where NO_STRING_H can be
	2389	# set and why.
	2390
	2391	if test $tcl_ok = 0; then
	2392	AC_DEFINE(NO_STRING_H)
	2393	fi
	2394
	2395	AC_CHECK_HEADER(sys/wait.h, , [AC_DEFINE(NO_SYS_WAIT_H)])
	2396	AC_CHECK_HEADER(dlfcn.h, , [AC_DEFINE(NO_DLFCN_H)])
	2397
	2398	# OS/390 lacks sys/param.h (and doesn't need it, by chance).
	2399	AC_HAVE_HEADERS(unistd.h sys/param.h)
	2400	])
	2401
	2402	#--------------------------------------------------------------------
	2403	# SC_PATH_X
	2404	#
	2405	# Locate the X11 header files and the X11 library archive. Try
	2406	# the ac_path_x macro first, but if it doesn't find the X stuff
	2407	# (e.g. because there's no xmkmf program) then check through
	2408	# a list of possible directories. Under some conditions the
	2409	# autoconf macro will return an include directory that contains
	2410	# no include files, so double-check its result just to be safe.
	2411	#
	2412	# Arguments:
	2413	# none
	2414	#
	2415	# Results:
	2416	#
	2417	# Sets the the following vars:
	2418	# XINCLUDES
	2419	# XLIBSW
	2420	#
	2421	#--------------------------------------------------------------------
	2422
	2423	AC_DEFUN([SC_PATH_X], [
	2424	AC_PATH_X
	2425	not_really_there=""
	2426	if test "$no_x" = ""; then
	2427	if test "$x_includes" = ""; then
	2428	AC_TRY_CPP([#include <X11/XIntrinsic.h>], , not_really_there="yes")
	2429	else
	2430	if test ! -r $x_includes/X11/Intrinsic.h; then
	2431	not_really_there="yes"
	2432	fi
	2433	fi
	2434	fi
	2435	if test "$no_x" = "yes" -o "$not_really_there" = "yes"; then
	2436	AC_MSG_CHECKING([for X11 header files])
	2437	found_xincludes="no"
	2438	AC_TRY_CPP([#include <X11/Intrinsic.h>], found_xincludes="yes", found_xincludes="no")
	2439	if test "$found_xincludes" = "no"; then
	2440	dirs="/usr/unsupported/include /usr/local/include /usr/X386/include /usr/X11R6/include /usr/X11R5/include /usr/include/X11R5 /usr/include/X11R4 /usr/openwin/include /usr/X11/include /usr/sww/include"
	2441	for i in $dirs ; do
	2442	if test -r $i/X11/Intrinsic.h; then
	2443	AC_MSG_RESULT([$i])
	2444	XINCLUDES=" -I$i"
	2445	found_xincludes="yes"
	2446	break
	2447	fi
	2448	done
	2449	fi
	2450	else
	2451	if test "$x_includes" != ""; then
	2452	XINCLUDES="-I$x_includes"
	2453	found_xincludes="yes"
	2454	fi
	2455	fi
	2456	if test found_xincludes = "no"; then
	2457	AC_MSG_RESULT([couldn't find any!])
	2458	fi
	2459
	2460	if test "$no_x" = yes; then
	2461	AC_MSG_CHECKING([for X11 libraries])
	2462	XLIBSW=nope
	2463	dirs="/usr/unsupported/lib /usr/local/lib /usr/X386/lib /usr/X11R6/lib /usr/X11R5/lib /usr/lib/X11R5 /usr/lib/X11R4 /usr/openwin/lib /usr/X11/lib /usr/sww/X11/lib"
	2464	for i in $dirs ; do
	2465	if test -r $i/libX11.a -o -r $i/libX11.so -o -r $i/libX11.sl; then
	2466	AC_MSG_RESULT([$i])
	2467	XLIBSW="-L$i -lX11"
	2468	x_libraries="$i"
	2469	break
	2470	fi
	2471	done
	2472	else
	2473	if test "$x_libraries" = ""; then
	2474	XLIBSW=-lX11
	2475	else
	2476	XLIBSW="-L$x_libraries -lX11"
	2477	fi
	2478	fi
	2479	if test "$XLIBSW" = nope ; then
	2480	AC_CHECK_LIB(Xwindow, XCreateWindow, XLIBSW=-lXwindow)
	2481	fi
	2482	if test "$XLIBSW" = nope ; then
	2483	AC_MSG_RESULT([could not find any! Using -lX11.])
	2484	XLIBSW=-lX11
	2485	fi
	2486	])
	2487
	2488	#--------------------------------------------------------------------
	2489	# SC_BLOCKING_STYLE
	2490	#
	2491	# The statements below check for systems where POSIX-style
	2492	# non-blocking I/O (O_NONBLOCK) doesn't work or is unimplemented.
	2493	# On these systems (mostly older ones), use the old BSD-style
	2494	# FIONBIO approach instead.
	2495	#
	2496	# Arguments:
	2497	# none
	2498	#
	2499	# Results:
	2500	#
	2501	# Defines some of the following vars:
	2502	# HAVE_SYS_IOCTL_H
	2503	# HAVE_SYS_FILIO_H
	2504	# USE_FIONBIO
	2505	# O_NONBLOCK
	2506	#
	2507	#--------------------------------------------------------------------
	2508
	2509	AC_DEFUN([SC_BLOCKING_STYLE], [
	2510	AC_CHECK_HEADERS(sys/ioctl.h)
	2511	AC_CHECK_HEADERS(sys/filio.h)
	2512	SC_CONFIG_SYSTEM
	2513	AC_MSG_CHECKING([FIONBIO vs. O_NONBLOCK for nonblocking I/O])
	2514	case $system in
	2515	# There used to be code here to use FIONBIO under AIX. However, it
	2516	# was reported that FIONBIO doesn't work under AIX 3.2.5. Since
	2517	# using O_NONBLOCK seems fine under AIX 4.*, I removed the FIONBIO
	2518	# code (JO, 5/31/97).
	2519
	2520	OSF*)
	2521	AC_DEFINE(USE_FIONBIO)
	2522	AC_MSG_RESULT([FIONBIO])
	2523	;;
	2524	SunOS-4*)
	2525	AC_DEFINE(USE_FIONBIO)
	2526	AC_MSG_RESULT([FIONBIO])
	2527	;;
	2528	ULTRIX-4.*)
	2529	AC_DEFINE(USE_FIONBIO)
	2530	AC_MSG_RESULT([FIONBIO])
	2531	;;
	2532	*)
	2533	AC_MSG_RESULT([O_NONBLOCK])
	2534	;;
	2535	esac
	2536	])
	2537
	2538	#--------------------------------------------------------------------
	2539	# SC_TIME_HANLDER
	2540	#
	2541	# Checks how the system deals with time.h, what time structures
	2542	# are used on the system, and what fields the structures have.
	2543	#
	2544	# Arguments:
	2545	# none
	2546	#
	2547	# Results:
	2548	#
	2549	# Defines some of the following vars:
	2550	# USE_DELTA_FOR_TZ
	2551	# HAVE_TM_GMTOFF
	2552	# HAVE_TM_TZADJ
	2553	# HAVE_TIMEZONE_VAR
	2554	#
	2555	#--------------------------------------------------------------------
	2556
	2557	AC_DEFUN([SC_TIME_HANDLER], [
	2558	AC_CHECK_HEADERS(sys/time.h)
	2559	AC_HEADER_TIME
	2560	AC_STRUCT_TIMEZONE
	2561
	2562	AC_CHECK_FUNCS(gmtime_r localtime_r)
	2563
	2564	AC_CACHE_CHECK([tm_tzadj in struct tm], tcl_cv_member_tm_tzadj, [
	2565	AC_TRY_COMPILE([#include <time.h>], [struct tm tm; tm.tm_tzadj;],
	2566	tcl_cv_member_tm_tzadj=yes, tcl_cv_member_tm_tzadj=no)])
	2567	if test $tcl_cv_member_tm_tzadj = yes ; then
	2568	AC_DEFINE(HAVE_TM_TZADJ)
	2569	fi
	2570
	2571	AC_CACHE_CHECK([tm_gmtoff in struct tm], tcl_cv_member_tm_gmtoff, [
	2572	AC_TRY_COMPILE([#include <time.h>], [struct tm tm; tm.tm_gmtoff;],
	2573	tcl_cv_member_tm_gmtoff=yes, tcl_cv_member_tm_gmtoff=no)])
	2574	if test $tcl_cv_member_tm_gmtoff = yes ; then
	2575	AC_DEFINE(HAVE_TM_GMTOFF)
	2576	fi
	2577
	2578	#
	2579	# Its important to include time.h in this check, as some systems
	2580	# (like convex) have timezone functions, etc.
	2581	#
	2582	AC_CACHE_CHECK([long timezone variable], tcl_cv_timezone_long, [
	2583	AC_TRY_COMPILE([#include <time.h>],
	2584	[extern long timezone;
	2585	timezone += 1;
	2586	exit (0);],
	2587	tcl_cv_timezone_long=yes, tcl_cv_timezone_long=no)])
	2588	if test $tcl_cv_timezone_long = yes ; then
	2589	AC_DEFINE(HAVE_TIMEZONE_VAR)
	2590	else
	2591	#
	2592	# On some systems (eg IRIX 6.2), timezone is a time_t and not a long.
	2593	#
	2594	AC_CACHE_CHECK([time_t timezone variable], tcl_cv_timezone_time, [
	2595	AC_TRY_COMPILE([#include <time.h>],
	2596	[extern time_t timezone;
	2597	timezone += 1;
	2598	exit (0);],
	2599	tcl_cv_timezone_time=yes, tcl_cv_timezone_time=no)])
	2600	if test $tcl_cv_timezone_time = yes ; then
	2601	AC_DEFINE(HAVE_TIMEZONE_VAR)
	2602	fi
	2603	fi
	2604	])
	2605
	2606	#--------------------------------------------------------------------
	2607	# SC_BUGGY_STRTOD
	2608	#
	2609	# Under Solaris 2.4, strtod returns the wrong value for the
	2610	# terminating character under some conditions. Check for this
	2611	# and if the problem exists use a substitute procedure
	2612	# "fixstrtod" (provided by Tcl) that corrects the error.
	2613	# Also, on Compaq's Tru64 Unix 5.0,
	2614	# strtod(" ") returns 0.0 instead of a failure to convert.
	2615	#
	2616	# Arguments:
	2617	# none
	2618	#
	2619	# Results:
	2620	#
	2621	# Might defines some of the following vars:
	2622	# strtod (=fixstrtod)
	2623	#
	2624	#--------------------------------------------------------------------
	2625
	2626	AC_DEFUN([SC_BUGGY_STRTOD], [
	2627	AC_CHECK_FUNC(strtod, tcl_strtod=1, tcl_strtod=0)
	2628	if test "$tcl_strtod" = 1; then
	2629	AC_CACHE_CHECK([for Solaris2.4/Tru64 strtod bugs], tcl_cv_strtod_buggy,[
	2630	AC_TRY_RUN([
	2631	extern double strtod();
	2632	int main() {
	2633	char infString="Inf", nanString="NaN", *spaceString=" ";
	2634	char *term;
	2635	double value;
	2636	value = strtod(infString, &term);
	2637	if ((term != infString) && (term[-1] == 0)) {
	2638	exit(1);
	2639	}
	2640	value = strtod(nanString, &term);
	2641	if ((term != nanString) && (term[-1] == 0)) {
	2642	exit(1);
	2643	}
	2644	value = strtod(spaceString, &term);
	2645	if (term == (spaceString+1)) {
	2646	exit(1);
	2647	}
	2648	exit(0);
	2649	}], tcl_cv_strtod_buggy=ok, tcl_cv_strtod_buggy=buggy,
	2650	tcl_cv_strtod_buggy=buggy)])
	2651	if test "$tcl_cv_strtod_buggy" = buggy; then
	2652	LIBOBJS="$LIBOBJS fixstrtod.o"
	2653	AC_DEFINE(strtod, fixstrtod)
	2654	fi
	2655	fi
	2656	])
	2657
	2658	#--------------------------------------------------------------------
	2659	# SC_TCL_LINK_LIBS
	2660	#
	2661	# Search for the libraries needed to link the Tcl shell.
	2662	# Things like the math library (-lm) and socket stuff (-lsocket vs.
	2663	# -lnsl) are dealt with here.
	2664	#
	2665	# Arguments:
	2666	# Requires the following vars to be set in the Makefile:
	2667	# DL_LIBS
	2668	# LIBS
	2669	# MATH_LIBS
	2670	#
	2671	# Results:
	2672	#
	2673	# Subst's the following var:
	2674	# TCL_LIBS
	2675	# MATH_LIBS
	2676	#
	2677	# Might append to the following vars:
	2678	# LIBS
	2679	#
	2680	# Might define the following vars:
	2681	# HAVE_NET_ERRNO_H
	2682	#
	2683	#--------------------------------------------------------------------
	2684
	2685	AC_DEFUN([SC_TCL_LINK_LIBS], [
	2686	#--------------------------------------------------------------------
	2687	# On a few very rare systems, all of the libm.a stuff is
	2688	# already in libc.a. Set compiler flags accordingly.
	2689	# Also, Linux requires the "ieee" library for math to work
	2690	# right (and it must appear before "-lm").
	2691	#--------------------------------------------------------------------
	2692
	2693	AC_CHECK_FUNC(sin, MATH_LIBS="", MATH_LIBS="-lm")
	2694	AC_CHECK_LIB(ieee, main, [MATH_LIBS="-lieee $MATH_LIBS"])
	2695
	2696	#--------------------------------------------------------------------
	2697	# Interactive UNIX requires -linet instead of -lsocket, plus it
	2698	# needs net/errno.h to define the socket-related error codes.
	2699	#--------------------------------------------------------------------
	2700
	2701	AC_CHECK_LIB(inet, main, [LIBS="$LIBS -linet"])
	2702	AC_CHECK_HEADER(net/errno.h, [AC_DEFINE(HAVE_NET_ERRNO_H)])
	2703
	2704	#--------------------------------------------------------------------
	2705	# Check for the existence of the -lsocket and -lnsl libraries.
	2706	# The order here is important, so that they end up in the right
	2707	# order in the command line generated by make. Here are some
	2708	# special considerations:
	2709	# 1. Use "connect" and "accept" to check for -lsocket, and
	2710	# "gethostbyname" to check for -lnsl.
	2711	# 2. Use each function name only once: can't redo a check because
	2712	# autoconf caches the results of the last check and won't redo it.
	2713	# 3. Use -lnsl and -lsocket only if they supply procedures that
	2714	# aren't already present in the normal libraries. This is because
	2715	# IRIX 5.2 has libraries, but they aren't needed and they're
	2716	# bogus: they goof up name resolution if used.
	2717	# 4. On some SVR4 systems, can't use -lsocket without -lnsl too.
	2718	# To get around this problem, check for both libraries together
	2719	# if -lsocket doesn't work by itself.
	2720	#--------------------------------------------------------------------
	2721
	2722	tcl_checkBoth=0
	2723	AC_CHECK_FUNC(connect, tcl_checkSocket=0, tcl_checkSocket=1)
	2724	if test "$tcl_checkSocket" = 1; then
	2725	AC_CHECK_FUNC(setsockopt, , [AC_CHECK_LIB(socket, setsockopt,
	2726	LIBS="$LIBS -lsocket", tcl_checkBoth=1)])
	2727	fi
	2728	if test "$tcl_checkBoth" = 1; then
	2729	tk_oldLibs=$LIBS
	2730	LIBS="$LIBS -lsocket -lnsl"
	2731	AC_CHECK_FUNC(accept, tcl_checkNsl=0, [LIBS=$tk_oldLibs])
	2732	fi
	2733	AC_CHECK_FUNC(gethostbyname, , [AC_CHECK_LIB(nsl, gethostbyname,
	2734	[LIBS="$LIBS -lnsl"])])
	2735
	2736	# Don't perform the eval of the libraries here because DL_LIBS
	2737	# won't be set until we call SC_CONFIG_CFLAGS
	2738
	2739	TCL_LIBS='${DL_LIBS} ${LIBS} ${MATH_LIBS}'
	2740	AC_SUBST(TCL_LIBS)
	2741	AC_SUBST(MATH_LIBS)
	2742	])
	2743
	2744	#--------------------------------------------------------------------
	2745	# SC_TCL_EARLY_FLAGS
	2746	#
	2747	# Check for what flags are needed to be passed so the correct OS
	2748	# features are available.
	2749	#
	2750	# Arguments:
	2751	# None
	2752	#
	2753	# Results:
	2754	#
	2755	# Might define the following vars:
	2756	# _ISOC99_SOURCE
	2757	# _LARGEFILE64_SOURCE
	2758	# _LARGEFILE_SOURCE64
	2759	#
	2760	#--------------------------------------------------------------------
	2761
	2762	AC_DEFUN([SC_TCL_EARLY_FLAG],[
	2763	AC_CACHE_VAL([tcl_cv_flag_]translit($1,[A-Z],[a-z]),
	2764	AC_TRY_COMPILE([$2], $3, [tcl_cv_flag_]translit($1,[A-Z],[a-z])=no,
	2765	AC_TRY_COMPILE([[#define ]$1[ 1
	2766	]$2], $3,
	2767	[tcl_cv_flag_]translit($1,[A-Z],[a-z])=yes,
	2768	[tcl_cv_flag_]translit($1,[A-Z],[a-z])=no)))
	2769	if test ["x${tcl_cv_flag_]translit($1,[A-Z],[a-z])[}" = "xyes"] ; then
	2770	AC_DEFINE($1)
	2771	tcl_flags="$tcl_flags $1"
	2772	fi
	2773	])
	2774
	2775	AC_DEFUN([SC_TCL_EARLY_FLAGS],[
	2776	AC_MSG_CHECKING([for required early compiler flags])
	2777	tcl_flags=""
	2778	SC_TCL_EARLY_FLAG(_ISOC99_SOURCE,[#include <stdlib.h>],
	2779	[char p = (char )strtoll; char q = (char )strtoull;])
	2780	SC_TCL_EARLY_FLAG(_LARGEFILE64_SOURCE,[#include <sys/stat.h>],
	2781	[struct stat64 buf; int i = stat64("/", &buf);])
	2782	SC_TCL_EARLY_FLAG(_LARGEFILE_SOURCE64,[#include <sys/stat.h>],
	2783	[char p = (char )open64;])
	2784	if test "x${tcl_flags}" = "x" ; then
	2785	AC_MSG_RESULT([none])
	2786	else
	2787	AC_MSG_RESULT([${tcl_flags}])
	2788	fi
	2789	])
	2790
	2791	#--------------------------------------------------------------------
	2792	# SC_TCL_64BIT_FLAGS
	2793	#
	2794	# Check for what is defined in the way of 64-bit features.
	2795	#
	2796	# Arguments:
	2797	# None
	2798	#
	2799	# Results:
	2800	#
	2801	# Might define the following vars:
	2802	# TCL_WIDE_INT_IS_LONG
	2803	# TCL_WIDE_INT_TYPE
	2804	# HAVE_STRUCT_DIRENT64
	2805	# HAVE_STRUCT_STAT64
	2806	# HAVE_TYPE_OFF64_T
	2807	#
	2808	#--------------------------------------------------------------------
	2809
	2810	AC_DEFUN([SC_TCL_64BIT_FLAGS], [
	2811	AC_MSG_CHECKING([for 64-bit integer type])
	2812	AC_CACHE_VAL(tcl_cv_type_64bit,[
	2813	tcl_cv_type_64bit=none
	2814	# See if the compiler knows natively about __int64
	2815	AC_TRY_COMPILE(,[__int64 value = (__int64) 0;],
	2816	tcl_type_64bit=__int64, tcl_type_64bit="long long")
	2817	# See if we should use long anyway Note that we substitute in the
	2818	# type that is our current guess for a 64-bit type inside this check
	2819	# program, so it should be modified only carefully...
	2820	AC_TRY_COMPILE(,[switch (0) {
	2821	case 1: case (sizeof(]${tcl_type_64bit}[)==sizeof(long)): ;
	2822	}],tcl_cv_type_64bit=${tcl_type_64bit})])
	2823	if test "${tcl_cv_type_64bit}" = none ; then
	2824	AC_DEFINE(TCL_WIDE_INT_IS_LONG)
	2825	AC_MSG_RESULT([using long])
	2826	else
	2827	AC_DEFINE_UNQUOTED(TCL_WIDE_INT_TYPE,${tcl_cv_type_64bit})
	2828	AC_MSG_RESULT([${tcl_cv_type_64bit}])
	2829
	2830	# Now check for auxiliary declarations
	2831	AC_CACHE_CHECK([for struct dirent64], tcl_cv_struct_dirent64,[
	2832	AC_TRY_COMPILE([#include <sys/types.h>
	2833	#include <sys/dirent.h>],[struct dirent64 p;],
	2834	tcl_cv_struct_dirent64=yes,tcl_cv_struct_dirent64=no)])
	2835	if test "x${tcl_cv_struct_dirent64}" = "xyes" ; then
	2836	AC_DEFINE(HAVE_STRUCT_DIRENT64)
	2837	fi
	2838
	2839	AC_CACHE_CHECK([for struct stat64], tcl_cv_struct_stat64,[
	2840	AC_TRY_COMPILE([#include <sys/stat.h>],[struct stat64 p;
	2841	],
	2842	tcl_cv_struct_stat64=yes,tcl_cv_struct_stat64=no)])
	2843	if test "x${tcl_cv_struct_stat64}" = "xyes" ; then
	2844	AC_DEFINE(HAVE_STRUCT_STAT64)
	2845	fi
	2846
	2847	AC_CHECK_FUNCS(open64 lseek64)
	2848	AC_MSG_CHECKING([for off64_t])
	2849	AC_CACHE_VAL(tcl_cv_type_off64_t,[
	2850	AC_TRY_COMPILE([#include <sys/types.h>],[off64_t offset;
	2851	],
	2852	tcl_cv_type_off64_t=yes,tcl_cv_type_off64_t=no)])
	2853	dnl Define HAVE_TYPE_OFF64_T only when the off64_t type and the
	2854	dnl functions lseek64 and open64 are defined.
	2855	if test "x${tcl_cv_type_off64_t}" = "xyes" && \
	2856	test "x${ac_cv_func_lseek64}" = "xyes" && \
	2857	test "x${ac_cv_func_open64}" = "xyes" ; then
	2858	AC_DEFINE(HAVE_TYPE_OFF64_T)
	2859	AC_MSG_RESULT([yes])
	2860	else
	2861	AC_MSG_RESULT([no])
	2862	fi
	2863	fi
	2864	])
	2865
	2866	#--------------------------------------------------------------------
	2867	# SC_TCL_GETHOSTBYADDR_R
	2868	#
	2869	# Check if we have MT-safe variant of gethostbyaddr().
	2870	#
	2871	# Arguments:
	2872	# None
	2873	#
	2874	# Results:
	2875	#
	2876	# Might define the following vars:
	2877	# HAVE_GETHOSTBYADDR_R
	2878	# HAVE_GETHOSTBYADDR_R_7
	2879	# HAVE_GETHOSTBYADDR_R_8
	2880	#
	2881	#--------------------------------------------------------------------
	2882
	2883	AC_DEFUN([SC_TCL_GETHOSTBYADDR_R], [AC_CHECK_FUNC(gethostbyaddr_r, [
	2884	AC_CACHE_CHECK([for gethostbyaddr_r with 7 args], tcl_cv_api_gethostbyaddr_r_7, [
	2885	AC_TRY_COMPILE([
	2886	#include <netdb.h>
	2887	], [
	2888	char *addr;
	2889	int length;
	2890	int type;
	2891	struct hostent *result;
	2892	char buffer[2048];
	2893	int buflen = 2048;
	2894	int h_errnop;
	2895
	2896	(void) gethostbyaddr_r(addr, length, type, result, buffer, buflen,
	2897	&h_errnop);
	2898	], tcl_cv_api_gethostbyaddr_r_7=yes, tcl_cv_api_gethostbyaddr_r_7=no)])
	2899	tcl_ok=$tcl_cv_api_gethostbyaddr_r_7
	2900	if test "$tcl_ok" = yes; then
	2901	AC_DEFINE(HAVE_GETHOSTBYADDR_R_7)
	2902	else
	2903	AC_CACHE_CHECK([for gethostbyaddr_r with 8 args], tcl_cv_api_gethostbyaddr_r_8, [
	2904	AC_TRY_COMPILE([
	2905	#include <netdb.h>
	2906	], [
	2907	char *addr;
	2908	int length;
	2909	int type;
	2910	struct hostent result, resultp;
	2911	char buffer[2048];
	2912	int buflen = 2048;
	2913	int h_errnop;
	2914
	2915	(void) gethostbyaddr_r(addr, length, type, result, buffer, buflen,
	2916	&resultp, &h_errnop);
	2917	], tcl_cv_api_gethostbyaddr_r_8=yes, tcl_cv_api_gethostbyaddr_r_8=no)])
	2918	tcl_ok=$tcl_cv_api_gethostbyaddr_r_8
	2919	if test "$tcl_ok" = yes; then
	2920	AC_DEFINE(HAVE_GETHOSTBYADDR_R_8)
	2921	fi
	2922	fi
	2923	if test "$tcl_ok" = yes; then
	2924	AC_DEFINE(HAVE_GETHOSTBYADDR_R)
	2925	fi
	2926	])])
	2927
	2928	#--------------------------------------------------------------------
	2929	# SC_TCL_GETHOSTBYNAME_R
	2930	#
	2931	# Check to see what variant of gethostbyname_r() we have.
	2932	# Based on David Arnold's example from the comp.programming.threads
	2933	# FAQ Q213
	2934	#
	2935	# Arguments:
	2936	# None
	2937	#
	2938	# Results:
	2939	#
	2940	# Might define the following vars:
	2941	# HAVE_GETHOSTBYADDR_R
	2942	# HAVE_GETHOSTBYADDR_R_3
	2943	# HAVE_GETHOSTBYADDR_R_5
	2944	# HAVE_GETHOSTBYADDR_R_6
	2945	#
	2946	#--------------------------------------------------------------------
	2947
	2948	AC_DEFUN([SC_TCL_GETHOSTBYNAME_R], [AC_CHECK_FUNC(gethostbyname_r, [
	2949	AC_CACHE_CHECK([for gethostbyname_r with 6 args], tcl_cv_api_gethostbyname_r_6, [
	2950	AC_TRY_COMPILE([
	2951	#include <netdb.h>
	2952	], [
	2953	char *name;
	2954	struct hostent he, res;
	2955	char buffer[2048];
	2956	int buflen = 2048;
	2957	int h_errnop;
	2958
	2959	(void) gethostbyname_r(name, he, buffer, buflen, &res, &h_errnop);
	2960	], tcl_cv_api_gethostbyname_r_6=yes, tcl_cv_api_gethostbyname_r_6=no)])
	2961	tcl_ok=$tcl_cv_api_gethostbyname_r_6
	2962	if test "$tcl_ok" = yes; then
	2963	AC_DEFINE(HAVE_GETHOSTBYNAME_R_6)
	2964	else
	2965	AC_CACHE_CHECK([for gethostbyname_r with 5 args], tcl_cv_api_gethostbyname_r_5, [
	2966	AC_TRY_COMPILE([
	2967	#include <netdb.h>
	2968	], [
	2969	char *name;
	2970	struct hostent *he;
	2971	char buffer[2048];
	2972	int buflen = 2048;
	2973	int h_errnop;
	2974
	2975	(void) gethostbyname_r(name, he, buffer, buflen, &h_errnop);
	2976	], tcl_cv_api_gethostbyname_r_5=yes, tcl_cv_api_gethostbyname_r_5=no)])
	2977	tcl_ok=$tcl_cv_api_gethostbyname_r_5
	2978	if test "$tcl_ok" = yes; then
	2979	AC_DEFINE(HAVE_GETHOSTBYNAME_R_5)
	2980	else
	2981	AC_CACHE_CHECK([for gethostbyname_r with 3 args], tcl_cv_api_gethostbyname_r_3, [
	2982	AC_TRY_COMPILE([
	2983	#include <netdb.h>
	2984	], [
	2985	char *name;
	2986	struct hostent *he;
	2987	struct hostent_data data;
	2988
	2989	(void) gethostbyname_r(name, he, &data);
	2990	], tcl_cv_api_gethostbyname_r_3=yes, tcl_cv_api_gethostbyname_r_3=no)])
	2991	tcl_ok=$tcl_cv_api_gethostbyname_r_3
	2992	if test "$tcl_ok" = yes; then
	2993	AC_DEFINE(HAVE_GETHOSTBYNAME_R_3)
	2994	fi
	2995	fi
	2996	fi
	2997	if test "$tcl_ok" = yes; then
	2998	AC_DEFINE(HAVE_GETHOSTBYNAME_R)
	2999	fi
	3000	])])
	3001
	3002	#--------------------------------------------------------------------
	3003	# SC_TCL_GETPWUID_R
	3004	#
	3005	# Check if we have MT-safe variant of getpwuid() and if yes,
	3006	# which one exactly.
	3007	#
	3008	# Arguments:
	3009	# None
	3010	#
	3011	# Results:
	3012	#
	3013	# Might define the following vars:
	3014	# HAVE_GETPWUID_R
	3015	# HAVE_GETPWUID_R_4
	3016	# HAVE_GETPWUID_R_5
	3017	#
	3018	#--------------------------------------------------------------------
	3019
	3020	AC_DEFUN([SC_TCL_GETPWUID_R], [AC_CHECK_FUNC(getpwuid_r, [
	3021	AC_CACHE_CHECK([for getpwuid_r with 5 args], tcl_cv_api_getpwuid_r_5, [
	3022	AC_TRY_COMPILE([
	3023	#include <sys/types.h>
	3024	#include <pwd.h>
	3025	], [
	3026	uid_t uid;
	3027	struct passwd pw, *pwp;
	3028	char buf[512];
	3029	int buflen = 512;
	3030
	3031	(void) getpwuid_r(uid, &pw, buf, buflen, &pwp);
	3032	], tcl_cv_api_getpwuid_r_5=yes, tcl_cv_api_getpwuid_r_5=no)])
	3033	tcl_ok=$tcl_cv_api_getpwuid_r_5
	3034	if test "$tcl_ok" = yes; then
	3035	AC_DEFINE(HAVE_GETPWUID_R_5)
	3036	else
	3037	AC_CACHE_CHECK([for getpwuid_r with 4 args], tcl_cv_api_getpwuid_r_4, [
	3038	AC_TRY_COMPILE([
	3039	#include <sys/types.h>
	3040	#include <pwd.h>
	3041	], [
	3042	uid_t uid;
	3043	struct passwd pw;
	3044	char buf[512];
	3045	int buflen = 512;
	3046
	3047	(void)getpwnam_r(uid, &pw, buf, buflen);
	3048	], tcl_cv_api_getpwuid_r_4=yes, tcl_cv_api_getpwuid_r_4=no)])
	3049	tcl_ok=$tcl_cv_api_getpwuid_r_4
	3050	if test "$tcl_ok" = yes; then
	3051	AC_DEFINE(HAVE_GETPWUID_R_4)
	3052	fi
	3053	fi
	3054	if test "$tcl_ok" = yes; then
	3055	AC_DEFINE(HAVE_GETPWUID_R)
	3056	fi
	3057	])])
	3058
	3059	#--------------------------------------------------------------------
	3060	# SC_TCL_GETPWNAM_R
	3061	#
	3062	# Check if we have MT-safe variant of getpwnam() and if yes,
	3063	# which one exactly.
	3064	#
	3065	# Arguments:
	3066	# None
	3067	#
	3068	# Results:
	3069	#
	3070	# Might define the following vars:
	3071	# HAVE_GETPWNAM_R
	3072	# HAVE_GETPWNAM_R_4
	3073	# HAVE_GETPWNAM_R_5
	3074	#
	3075	#--------------------------------------------------------------------
	3076
	3077	AC_DEFUN([SC_TCL_GETPWNAM_R], [AC_CHECK_FUNC(getpwnam_r, [
	3078	AC_CACHE_CHECK([for getpwnam_r with 5 args], tcl_cv_api_getpwnam_r_5, [
	3079	AC_TRY_COMPILE([
	3080	#include <sys/types.h>
	3081	#include <pwd.h>
	3082	], [
	3083	char *name;
	3084	struct passwd pw, *pwp;
	3085	char buf[512];
	3086	int buflen = 512;
	3087
	3088	(void) getpwnam_r(name, &pw, buf, buflen, &pwp);
	3089	], tcl_cv_api_getpwnam_r_5=yes, tcl_cv_api_getpwnam_r_5=no)])
	3090	tcl_ok=$tcl_cv_api_getpwnam_r_5
	3091	if test "$tcl_ok" = yes; then
	3092	AC_DEFINE(HAVE_GETPWNAM_R_5)
	3093	else
	3094	AC_CACHE_CHECK([for getpwnam_r with 4 args], tcl_cv_api_getpwnam_r_4, [
	3095	AC_TRY_COMPILE([
	3096	#include <sys/types.h>
	3097	#include <pwd.h>
	3098	], [
	3099	char *name;
	3100	struct passwd pw;
	3101	char buf[512];
	3102	int buflen = 512;
	3103
	3104	(void)getpwnam_r(name, &pw, buf, buflen);
	3105	], tcl_cv_api_getpwnam_r_4=yes, tcl_cv_api_getpwnam_r_4=no)])
	3106	tcl_ok=$tcl_cv_api_getpwnam_r_4
	3107	if test "$tcl_ok" = yes; then
	3108	AC_DEFINE(HAVE_GETPWNAM_R_4)
	3109	fi
	3110	fi
	3111	if test "$tcl_ok" = yes; then
	3112	AC_DEFINE(HAVE_GETPWNAM_R)
	3113	fi
	3114	])])
	3115
	3116	#--------------------------------------------------------------------
	3117	# SC_TCL_GETGRGID_R
	3118	#
	3119	# Check if we have MT-safe variant of getgrgid() and if yes,
	3120	# which one exactly.
	3121	#
	3122	# Arguments:
	3123	# None
	3124	#
	3125	# Results:
	3126	#
	3127	# Might define the following vars:
	3128	# HAVE_GETGRGID_R
	3129	# HAVE_GETGRGID_R_4
	3130	# HAVE_GETGRGID_R_5
	3131	#
	3132	#--------------------------------------------------------------------
	3133
	3134	AC_DEFUN([SC_TCL_GETGRGID_R], [AC_CHECK_FUNC(getgrgid_r, [
	3135	AC_CACHE_CHECK([for getgrgid_r with 5 args], tcl_cv_api_getgrgid_r_5, [
	3136	AC_TRY_COMPILE([
	3137	#include <sys/types.h>
	3138	#include <grp.h>
	3139	], [
	3140	gid_t gid;
	3141	struct group gr, *grp;
	3142	char buf[512];
	3143	int buflen = 512;
	3144
	3145	(void) getgrgid_r(gid, &gr, buf, buflen, &grp);
	3146	], tcl_cv_api_getgrgid_r_5=yes, tcl_cv_api_getgrgid_r_5=no)])
	3147	tcl_ok=$tcl_cv_api_getgrgid_r_5
	3148	if test "$tcl_ok" = yes; then
	3149	AC_DEFINE(HAVE_GETGRGID_R_5)
	3150	else
	3151	AC_CACHE_CHECK([for getgrgid_r with 4 args], tcl_cv_api_getgrgid_r_4, [
	3152	AC_TRY_COMPILE([
	3153	#include <sys/types.h>
	3154	#include <grp.h>
	3155	], [
	3156	gid_t gid;
	3157	struct group gr;
	3158	char buf[512];
	3159	int buflen = 512;
	3160
	3161	(void)getgrgid_r(gid, &gr, buf, buflen);
	3162	], tcl_cv_api_getgrgid_r_4=yes, tcl_cv_api_getgrgid_r_4=no)])
	3163	tcl_ok=$tcl_cv_api_getgrgid_r_4
	3164	if test "$tcl_ok" = yes; then
	3165	AC_DEFINE(HAVE_GETGRGID_R_4)
	3166	fi
	3167	fi
	3168	if test "$tcl_ok" = yes; then
	3169	AC_DEFINE(HAVE_GETGRGID_R)
	3170	fi
	3171	])])
	3172
	3173	#--------------------------------------------------------------------
	3174	# SC_TCL_GETGRNAM_R
	3175	#
	3176	# Check if we have MT-safe variant of getgrnam() and if yes,
	3177	# which one exactly.
	3178	#
	3179	# Arguments:
	3180	# None
	3181	#
	3182	# Results:
	3183	#
	3184	# Might define the following vars:
	3185	# HAVE_GETGRNAM_R
	3186	# HAVE_GETGRNAM_R_4
	3187	# HAVE_GETGRNAM_R_5
	3188	#
	3189	#--------------------------------------------------------------------
	3190
	3191	AC_DEFUN([SC_TCL_GETGRNAM_R], [AC_CHECK_FUNC(getgrnam_r, [
	3192	AC_CACHE_CHECK([for getgrnam_r with 5 args], tcl_cv_api_getgrnam_r_5, [
	3193	AC_TRY_COMPILE([
	3194	#include <sys/types.h>
	3195	#include <grp.h>
	3196	], [
	3197	char *name;
	3198	struct group gr, *grp;
	3199	char buf[512];
	3200	int buflen = 512;
	3201
	3202	(void) getgrnam_r(name, &gr, buf, buflen, &grp);
	3203	], tcl_cv_api_getgrnam_r_5=yes, tcl_cv_api_getgrnam_r_5=no)])
	3204	tcl_ok=$tcl_cv_api_getgrnam_r_5
	3205	if test "$tcl_ok" = yes; then
	3206	AC_DEFINE(HAVE_GETGRNAM_R_5)
	3207	else
	3208	AC_CACHE_CHECK([for getgrnam_r with 4 args], tcl_cv_api_getgrnam_r_4, [
	3209	AC_TRY_COMPILE([
	3210	#include <sys/types.h>
	3211	#include <grp.h>
	3212	], [
	3213	char *name;
	3214	struct group gr;
	3215	char buf[512];
	3216	int buflen = 512;
	3217
	3218	(void)getgrnam_r(name, &gr, buf, buflen);
	3219	], tcl_cv_api_getgrnam_r_4=yes, tcl_cv_api_getgrnam_r_4=no)])
	3220	tcl_ok=$tcl_cv_api_getgrnam_r_4
	3221	if test "$tcl_ok" = yes; then
	3222	AC_DEFINE(HAVE_GETGRNAM_R_4)
	3223	fi
	3224	fi
	3225	if test "$tcl_ok" = yes; then
	3226	AC_DEFINE(HAVE_GETGRNAM_R)
	3227	fi
	3228	])])
	3229
	3230	#--------------------------------------------------------------------
	3231	# SC_CONFIG_COMMANDS_PRE(CMDS)
	3232	#
	3233	# Replacement for autoconf 2.5x AC_COMMANDS_PRE:
	3234	# Commands to run right before config.status is
	3235	# created. Accumulates.
	3236	#
	3237	# Requires presence of SC_OUTPUT_COMMANDS_PRE at the end
	3238	# of configure.ac (right before AC_OUTPUT).
	3239	#
	3240	#--------------------------------------------------------------------
	3241
	3242	AC_DEFUN([SC_CONFIG_COMMANDS_PRE], [
	3243	define([SC_OUTPUT_COMMANDS_PRE], defn([SC_OUTPUT_COMMANDS_PRE])[$1
	3244	])])
	3245	AC_DEFUN([SC_OUTPUT_COMMANDS_PRE])
	3246

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source: trunk/libs/newlib/src/config/tcl.m4 @ 684

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