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source: trunk/cf/tcl.m4 @ 2598

Last change on this file since 2598 was 1081, checked in by gah, 16 years ago
fix for perl, ruby bindings; visviewer SendBytes? method sends all data at once
File size: 96.7 KB

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

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