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tcl.m4 @ 478

Last change on this file since 478 was 444, checked in by satin@…, 6 years ago
add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
File size: 96.9 KB

Line
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 @ 478

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