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configure.in

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1	dnl Run autoconf on this file to produce the system configuration
2	dnl script "configure"
3
4	# FileName [ configure.in ]
5	#
6	# PackageName [ vis ]
7	#
8	# Synopsis [ System configuration script for autoconf ]
9	#
10	# SeeAlso [ Makefile.in ]
11	#
12	# Author [ Stephen Edwards <sedwards@eecs.berkeley.edu> ]
13	#
14	# Copyright [
15	# Copyright (c) 1994-1996 The Regents of the Univ. of California.
16	# All rights reserved.
17	#
18	# Permission is hereby granted, without written agreement and without license
19	# or royalty fees, to use, copy, modify, and distribute this software and its
20	# documentation for any purpose, provided that the above copyright notice and
21	# the following two paragraphs appear in all copies of this software.
22	#
23	# IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
24	# DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
25	# OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
26	# CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	#
28	# THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
29	# INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
30	# FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN
31	# "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO PROVIDE
32	# MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
33	# ]
34	#
35	# Revision [$Id: configure.in,v 1.62 2004/08/20 18:31:32 fabio Exp $]
36
37	# Require autoconf version 2.11 or above -- it checks to see if the C
38	# compiler actually works!
39
40	AC_PREREQ(2.11)
41
42	AC_INIT(src/cmd/cmd.h)
43
44	# Look for install.sh, config.guess, and config.sub in the "helpers" dir
45	AC_CONFIG_AUX_DIR(helpers)
46
47	#----------------------------------------------------------------------
48	# Configuration options
49	#----------------------------------------------------------------------
50
51	# Give the configurer a chance to set the location of the GLU tree
52
53	AC_SUBST(glulibdir)
54	AC_ARG_WITH(glu-libdir,
55	[ --with-glu-libdir=<libdir> Specify directories to search for the GLU library.
56	Expects to find <libdir>/libglu.a],
57	[glulibdir=$withval], [glulibdir=""])
58
59	AC_SUBST(gluincdir)
60	AC_ARG_WITH(glu-incdir,
61	[ --with-glu-incdir=<incdir> Specify directories to search for the GLU headers],
62	[gluincdir=$withval], [gluincdir=""])
63
64	# Give the configurer a chance to set a different location for the VIS
65	# headers and library
66
67	AC_SUBST(vislibdir)
68	AC_ARG_WITH(vis-libdir,
69	[ --with-vis-libdir=<libdir> Specify directories to search for the VIS
70	and headers. Defaults to \".\".
71	Expects to find <libdir>/libvis.a],
72	[vislibdir=$withval],
73	[vislibdir="."])
74
75	# Give the configurer a chance to set a different location for the VIS
76	# source. When specified, "srcdir" points to "master" source, and
77	# "local_srcdir" points to the source under local development.
78
79	AC_SUBST(local_srcdir)
80	AC_ARG_WITH(local-srcdir,
81	[ --with-local-srcdir=<srcdir> Specify the root directory to search for
82	source for packages (the PKGS list).
83	Expects to find, e.g., <srcdir>/tbl/tbl.c],
84	[local_srcdir=$withval],
85	[local_srcdir=$srcdir])
86
87	# Give the configurer a chance to set the BDD library
88
89	AC_SUBST(BDDLIB)
90	AC_ARG_WITH(bdd,
91	[ --with-bdd=<bddPackage> Specify the BDD library to link against.
92	Defaults to --with-bdd=cu.],
93	[BDDLIB=$withval],
94	[BDDLIB=cu])
95
96	#----------------------------------------------------------------------
97	# Checks for programs we need
98	#----------------------------------------------------------------------
99	AC_PATH_PROG(ZCHAFF,zchaff)
100	AC_PATH_PROG(AR, ar, ar)
101	AC_PROG_RANLIB
102
103	AC_CANONICAL_SYSTEM
104	AC_SUBST(target)
105
106	# Determine the name of the C compiler we're going to use
107
108	AC_ARG_ENABLE(gcc,
109	[ --enable-gcc Allow use of gcc if available],
110	[gcc_ok=$enableval], [gcc_ok=no])
111
112	# We cannot set CC=g++ directly because many configuration test programs
113	# do not compile with g++. Hence, when the user specifies --enable-gcc=g++,
114	# we set CC=gcc during configuration, and then CC=g++ at the end.
115	# The same applies to icpc and icc.
116	if test "$gcc_ok" != no; then
117	case "$gcc_ok" in
118	yes \| g++)
119	CC=gcc ;;
120	icpc)
121	CC=icc ;;
122	*)
123	CC=$gcc_ok
124	esac
125	else
126	if test -z "$CC" ; then
127	# Balakrishna Kumthekar <kumtheka@colorado.edu>
128	# As we do not support cc on RS6000, Cygwin and SunOS.
129	case "$target" in
130	rs6000-ibm-aix* \| -pc-cygwin32 \| sparc-sun-sunos)
131	CC=gcc ;;
132	*)
133	CC=cc ;;
134	esac
135	fi
136	fi
137	AC_PROG_CC
138
139	AC_ARG_ENABLE(64,
140	[ --enable-64 Use 64-bit pointers on 64-bit Alpha machines],
141	[use_sixty_four=$enableval], [use_sixty_four=no])
142
143	# Gcc does not support 32-bit pointers on the Alphas.
144	if test "$gcc_ok" != no; then
145	use_sixty_four=yes
146	fi
147
148
149	# Roderick Bloem (rbloem@colorado.edu): making a special case for
150	# ultrix install, since it's annoying about setting groupids.
151	case "$target" in
152	mips-dec-ultrix*)
153	INSTALL="helpers/install-sh -c"
154	INSTALL_PROGRAM="\${INSTALL}"
155	INSTALL_DATA="\${INSTALL} -m 644";;
156
157	*)
158	AC_PROG_INSTALL ;;
159	esac
160
161	# Determine the compiler flags to use
162
163	DEBUG_CFLAGS="-g"
164	DEBUG_LDFLAGS=""
165
166	case "$target" in
167
168	i686-pc-linux-gnu)
169	# Linux with Intel compiler
170	# -ansi: ANSI C conformance
171	# -ip: inter-procedural optimization
172	OPTIMIZE_CFLAGS="-g -O3 -ansi -ip"
173	;;
174
175	sparc-sun-solaris* \| i386-pc-solaris*)
176	# Sparc and X86 Solaris:
177	# -xO3: Highest safe level of optimization
178	# -native: Optimize for the native processor (if supported)
179	# -dalign: Generate double-word load/store for performance
180	# (only for SPARC)
181	# and other arcane compilation flags.
182	if test "$GCC" = yes; then
183	OPTIMIZE_CFLAGS="-O"
184	else
185	case "$target" in
186	sparc-sun-solaris*)
187	ALIGN=" -dalign" ;;
188	*)
189	ALIGN="" ;;
190	esac
191	AC_MSG_CHECKING([for -native])
192	CFLAGS="-xO3 -native$ALIGN"
193	AC_CACHE_VAL(ac_cv_have_native,
194	[ AC_TRY_RUN([
195	main(){exit(0);}
196	],ac_cv_have_native=yes,ac_cv_have_native=no,ac_cv_have_native=no)])
197	if test $ac_cv_have_native = yes ; then
198	AC_MSG_RESULT(working)
199	OPTIMIZE_CFLAGS="-xO3 -native$ALIGN"
200	else
201	AC_MSG_RESULT(broken)
202	AC_MSG_CHECKING([for fallback optimization flags])
203	CFLAGS="-xO3 -fns -fsimple=2$ALIGN -ftrap=%none -xlibmil"
204	AC_CACHE_VAL(ac_cv_have_fallback,
205	[ AC_TRY_RUN([
206	main(){exit(0);}
207	],ac_cv_have_fallback=yes,ac_cv_have_fallback=no,ac_cv_have_fallback=no)])
208	if test $ac_cv_have_fallback = yes ; then
209	AC_MSG_RESULT(working)
210	OPTIMIZE_CFLAGS="-xO3 -fns -fsimple=2$ALIGN -ftrap=%none -xlibmil"
211	else
212	AC_MSG_RESULT(broken)
213	OPTIMIZE_CFLAGS="-O"
214	fi
215	fi
216	fi
217	;;
218
219	mips-dec-ultrix*)
220	# MIPS-based DECstations running Ultrix:
221	# -std1: Produce non-ANSI code warnings, and define __STDC__
222	# -O: Use the global "ucode" optimizer
223	# -Olimit 5000: Don't optimize routines bigger than 5000 basic blocks
224	OPTIMIZE_CFLAGS="-std1 -O -Olimit 5000" ;;
225
226	alpha-dec-osf*)
227	# DEC Alpha running OSF:
228
229	# 64-bit mode:
230	# -g3: Produce symbol table information for optimized code
231	# -O4: Enable every optimization
232	# -std: Enforce the ANSI standard with extensions, define __STDC__
233	# -ieee_with_no_inexact: Disable (potentially slow) signaling
234	# for inexact floating-point results
235	# -tune host: Tune instructions for the compilation host machine
236	OPTIMIZE_CFLAGS="-g3 -O4 -std -ieee_with_no_inexact -tune host"
237	DEBUG_CFLAGS="-g -std -ieee_with_no_inexact"
238
239	# -non_shared: Do not use shared libraries
240	# -om: Generate an OMAGIC file for the om optimizer
241	OPTIMIZE_LDFLAGS="-non_shared"
242
243	if test "$use_sixty_four" = "no"; then
244	# 32-bit mode:
245	# -xtaso: Make the compiler respond to #pragma pointer_size directives
246	OPTIMIZE_CFLAGS="$OPTIMIZE_CFLAGS -xtaso"
247	DEBUG_CFLAGS="$DEBUG_CFLAGS -xtaso"
248
249	# -taso: Load the executable into the lower 31-bit address space
250	OPTIMIZE_LDFLAGS="$OPTIMIZE_LDFLAGS -om -taso"
251	DEBUG_LDFLAGS="$DEBUG_LDFLAGS -taso"
252
253	AC_DEFINE(SIZEOF_VOID_P, 4)
254	ac_sizeof_voidp=4
255	fi
256	;;
257
258	hppa--hpux*)
259	# HP running HPUX
260	# -Aa: Behave as an ANSI compiler
261	# -D_HPUX_SOURCE: Include "HP-specific" symbols in the header
262	# files (e.g., this means sys/resource.h has struct rusage)
263	# +Onolimit: removes resource restrictions for optimization
264	OPTIMIZE_CFLAGS="-O -Aa +Onolimit -D_HPUX_SOURCE"
265	DEBUG_CFLAGS="-g -Aa -D_HPUX_SOURCE" ;;
266
267	*)
268	# Other systems:
269	OPTIMIZE_CFLAGS="-O" ;;
270
271	esac
272
273	if test "$GCC" = yes; then
274	case "$target" in
275	i686-pc-linux-gnu \| i386-pc-solaris* \| i386-pc-cygwin32 \| i386--freebsd)
276	AC_MSG_CHECKING([for -mcpu and -malign compiler options])
277	CFLAGS="-g -O6 -mcpu=pentiumpro -malign-double"
278	AC_TRY_COMPILE(,,ac_have_mcpu=yes,ac_have_mcpu=no)
279	if test "$ac_have_mcpu" = yes; then
280	AC_MSG_RESULT(working)
281	OPTIMIZE_CFLAGS="-g -O6 -mcpu=pentiumpro -malign-double"
282	else
283	AC_MSG_RESULT(broken)
284	OPTIMIZE_CFLAGS="-g -O3"
285	fi
286	;;
287	sparc-sun-solaris*)
288	AC_MSG_CHECKING([for -mtune compiler option])
289	CFLAGS="-g -O6 -mtune=ultrasparc"
290	AC_TRY_COMPILE(,,ac_have_mtune=yes,ac_have_mtune=no)
291	if test "$ac_have_mtune" = yes; then
292	AC_MSG_RESULT(working)
293	OPTIMIZE_CFLAGS="-g -O6 -mtune=ultrasparc"
294	else
295	AC_MSG_RESULT(not working)
296	OPTIMIZE_CFLAGS="-g -O3"
297	fi
298	;;
299	*)
300	OPTIMIZE_CFLAGS="-g -O3"
301	;;
302	esac
303	OPTIMIZE_LDFLAGS=""
304	DEBUG_CFLAGS="-g"
305	DEBUG_LDFLAGS=""
306	fi
307
308	AC_ARG_WITH(comp-mode,
309	[ --with-comp-mode=<mode> Specify a special compilation mode:
310	optimize (the default): Produce optimized
311	code, with symbol table information
312	if supported on the platform/compiler,
313	and without asserts.
314	debug: Produce unoptimized code with symbol table
315	information and asserts enabled
316	purify: Unoptimized code linked with purify
317	quantify: Optimized code without asserts
318	linked with quantify],
319	[comp_mode=$withval],
320	[comp_mode=optimize])
321	AC_SUBST(LINKER)
322	AC_SUBST(PLINKER)
323
324	LINKER="$CC"
325
326	case "$comp_mode" in
327	debug)
328	CFLAGS="$DEBUG_CFLAGS"
329	LDFLAGS="$DEBUG_LDFLAGS" ;;
330	purify)
331	CFLAGS="$DEBUG_CFLAGS"
332	LDFLAGS="$DEBUG_LDFLAGS"
333	AC_DEFINE(PURIFY)
334	LINKER="purify -cache-dir=/tmp $CC"
335	PLINKER="purify -log-file=./purify.log -cachedir=/tmp $CC" ;;
336	quantify)
337	CFLAGS="$OPTIMIZE_CFLAGS"
338	LDFLAGS="$OPTIMIZE_LDFLAGS"
339	AC_DEFINE(QUANTIFY)
340	AC_DEFINE(NDEBUG)
341	LINKER="quantify $CC" ;;
342	optimize \| *)
343	CFLAGS="$OPTIMIZE_CFLAGS"
344	LDFLAGS="$OPTIMIZE_LDFLAGS"
345	AC_DEFINE(NDEBUG) ;;
346	esac
347
348	AC_PROG_LEX
349	AC_MSG_CHECKING(if $LEX accepts the -o and -P options)
350
351	AC_CACHE_VAL(ac_cv_flex_accepts_op,
352	[ ac_cv_flex_accepts_op=yes ;
353	echo "%%\
354	%%" \| $LEX -Ptest -o/dev/null >/dev/null 2>&1 \|\| ac_cv_flex_accepts_op=no ])
355	if test $ac_cv_flex_accepts_op = yes ; then
356	AC_MSG_RESULT(yes)
357	else
358	AC_MSG_RESULT(no)
359	AC_MSG_WARN([You either need a newer version of flex, or need to modify
360	the defintion of LEX in the Makefile to point to a version that does
361	accept -p -t and -o.])
362	fi
363
364	AC_PROG_YACC
365	AC_MSG_CHECKING([if $YACC accepts the -p, -t, and -o options])
366	AC_CACHE_VAL(ac_cv_yacc_accepts_pto,
367	[ ac_cv_yacc_accepts_pto=yes ;
368	echo "%token terminal\
369	%%\
370	nonterminal: terminal\
371	%%" > config.in
372	$YACC -ptest -o /dev/null config.in >/dev/null 2>&1 \|\| ac_cv_yacc_accepts_pto=no
373	rm -f config.in ])
374	if test $ac_cv_yacc_accepts_pto = yes ; then
375	AC_MSG_RESULT(yes)
376	else
377	AC_MSG_RESULT(no)
378	AC_MSG_WARN([You either need a newer version of bison, or need to modify
379	the defintion of YACC in the Makefile to point to a version that does
380	accept -p -t and -o.])
381	fi
382
383	#----------------------------------------------------------------------
384	# Checks for headers and libraries
385	#----------------------------------------------------------------------
386	AC_HEADER_STDC
387
388	AC_SUBST(LIBDIRS)
389
390	# add -lucb to LIBS and -L/usr/ucblib to LIBDIRS
391	# if there's a libucb.a available
392	# (Solaris needs this for signals)
393
394	ac_save_ldflags="$LDFLAGS"
395	LDFLAGS=-L/usr/ucblib
396	AC_CHECK_LIB(ucb,main,LIBDIRS="$LIBDIRS -L/usr/ucblib")
397	LDFLAGS="$ac_save_ldflags"
398
399	# add -lbsd if there's a libbsd.a available
400	# (e.g., Linux needs this for bsd_ioctl)
401	AC_CHECK_LIB(bsd,main)
402
403	# Check if libreadline exists and the function readline can be used.
404	# This implies checking for the availability of libtermcap or of a
405	# suitable replacement. (We only look for libncurses.)
406	AC_CACHE_VAL(vis_cv_termcap_lib,
407	[AC_CHECK_LIB(termcap, tgetent, vis_cv_termcap_lib=-ltermcap,
408	[AC_CHECK_LIB(ncurses, tgetent, vis_cv_termcap_lib=-lncurses,
409	bash_cv_termcap_lib=none)])])
410	if test "$vis_cv_termcap_lib" != none; then
411	AC_CHECK_LIB(readline, readline, ac_readline_flag=1,
412	ac_readline_flag=0, $vis_cv_termcap_lib)
413	if test $ac_readline_flag = 1 ; then
414	LIBS="$LIBS -lreadline $vis_cv_termcap_lib" ; AC_DEFINE(HAVE_LIBREADLINE)
415	fi
416	fi
417
418	# Check for the dirent header file, which is quite a mess
419	AC_HEADER_DIRENT
420
421	# Check for these system header files
422	AC_CHECK_HEADERS(sys/termios.h sys/ioctl.h sys/time.h signal.h sys/signal.h readline/readline.h readline/history.h)
423
424	# This is for Linux
425	AC_CHECK_HEADERS(bsd/sgtty.h)
426
427	# Some systems want both sys/ioctl.h and sys/termios.h, but others can
428	# only have one -- check for that
429
430	AC_MSG_CHECKING(whether sys/termios.h and sys/ioctl.h should both be included)
431
432	AC_CACHE_VAL(ac_cv_ioctl_with_termios,
433	[AC_TRY_CPP([
434	#include <sys/termios.h>
435	#include <sys/ioctl.h>
436	], ac_cv_ioctl_with_termios=1, ac_cv_ioctl_with_termios=0 )])
437	if test $ac_cv_ioctl_with_termios = 1 ; then
438	AC_MSG_RESULT(yes) ; AC_DEFINE(IOCTL_WITH_TERMIOS)
439	else
440	AC_MSG_RESULT(no)
441	fi
442
443	# cmdFile.c wants to be able to use TIOCGETC to do file completion,
444	# but some systems (e.g., HPUX) don't have this
445	#
446
447	AC_MSG_CHECKING(for TIOCGETC)
448
449	AC_CACHE_VAL(ac_cv_have_ioctl_with_tiocgetc,
450	[if test $ac_cv_ioctl_with_termios = 1 ; then
451	AC_EGREP_CPP(yes,
452	[#include <sys/termios.h>
453	#include <sys/ioctl.h>
454	#ifdef TIOCGETC
455	yes
456	#endif],
457	ac_cv_have_ioctl_with_tiocgetc=yes,
458	ac_cv_have_ioctl_with_tiocgetc=no)
459	else
460	AC_EGREP_CPP(yes,
461	[#include <sys/ioctl.h>
462	#ifdef TIOCGETC
463	yes
464	#endif],
465	ac_cv_have_ioctl_with_tiocgetc=yes,
466	ac_cv_have_ioctl_with_tiocgetc=no)
467	fi])
468	if test $ac_cv_have_ioctl_with_tiocgetc = "yes" ; then
469	AC_MSG_RESULT(yes) ; AC_DEFINE(HAVE_IOCTL_WITH_TIOCGETC)
470	else
471	AC_MSG_RESULT(no)
472	fi
473
474	# # cmdFile.c wants to turn off interrupts, but some systems don't
475	# # seem to know how to do that using TIOCLBIS
476	# #
477	# # This is probably fairly fragile, and it's probably cmdFile.c that should
478	# # be fixed
479	# #
480	# # This has been very unreliable (e.g., on Solaris), so the facility has
481	# # been turned off
482	#
483	# if test $ac_cv_have_ioctl_with_tiocgetc = "yes" ; then
484	#
485	# AC_MSG_CHECKING(for TIOCLBIS)
486	#
487	# AC_CACHE_VAL(ac_cv_have_term_interrupts,
488	# [AC_EGREP_CPP(yes,
489	# [#include <sys/ioctl.h>
490	# #include <sys/termios.h>
491	# #ifdef TIOCLBIS
492	# yes
493	# #endif
494	# ], ac_cv_have_term_interrupts=1,
495	# ac_cv_have_term_interrupts=0 )])
496	#
497	# if test $ac_cv_have_term_interrupts = 1 ; then
498	# AC_MSG_RESULT(yes) ; AC_DEFINE(HAVE_TERM_INTERRUPTS)
499	# else
500	# AC_MSG_RESULT(no)
501	# fi
502	#
503	# fi # ac_cv_have_ioctl_with_tiocgetc
504
505	#----------------------------------------------------------------------
506	# Checks for typedefs, structures, and compiler characteristics.
507	#----------------------------------------------------------------------
508
509	# Check to see if the compiler understands "const"
510	# #define it empty otherwise
511	AC_C_CONST
512
513	# Sort out "time.h" nonsense
514	AC_HEADER_TIME
515
516	AC_STRUCT_TM
517
518	# Set RETSIGTYPE to the proper return type for a signal handler (void or int)
519	AC_TYPE_SIGNAL
520
521	# Roderick Bloem (rbloem@colorado.edu) : On Irix we need ttold
522	case "$target" in
523	mips-sgi-irix*)
524	AC_DEFINE(NEED_TTOLD);;
525	esac
526
527	#----------------------------------------------------------------------
528	# Checks for library functions.
529	#----------------------------------------------------------------------
530
531	AC_PROG_GCC_TRADITIONAL
532	AC_FUNC_MEMCMP
533	AC_TYPE_SIGNAL
534	AC_CHECK_FUNCS(gettimeofday strchr strstr setvbuf getenv unlink mkstemp close)
535
536	#-----------------------------------------------------------------------
537	# Check for mawk, gawk, nawk, awk in that order
538	#-----------------------------------------------------------------------
539	AC_PROG_AWK
540
541	#----------------------------------------------------------------------
542	# Create the Makefile from Makefile.in
543	#----------------------------------------------------------------------
544	if test "$gcc_ok" = "g++"; then
545	CC=$gcc_ok
546	fi
547	AC_OUTPUT(Makefile)

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