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source: rtems/c/src/librtems++/aclocal.m4 @ 4075af6f

4.104.114.84.95

Last change on this file since 4075af6f was 4075af6f, checked in by Joel Sherrill <joel.sherrill@…>, on 10/05/99 at 13:49:54
Regenerated.
Property mode set to `100644`
File size: 22.2 KB

Line
1	dnl aclocal.m4 generated automatically by aclocal 1.4a
2
3	dnl Copyright (C) 1994, 1995-8, 1999 Free Software Foundation, Inc.
4	dnl This file is free software; the Free Software Foundation
5	dnl gives unlimited permission to copy and/or distribute it,
6	dnl with or without modifications, as long as this notice is preserved.
7
8	dnl This program is distributed in the hope that it will be useful,
9	dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without
10	dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A
11	dnl PARTICULAR PURPOSE.
12
13	dnl $Id$
14
15	dnl
16	dnl RTEMS_TOP($1)
17	dnl
18	dnl $1 .. relative path from this configure.in to the toplevel configure.in
19	dnl
20	AC_DEFUN(RTEMS_TOP,
21	[dnl
22	AC_BEFORE([$0], [AC_CONFIG_AUX_DIR])dnl
23	AC_BEFORE([$0], [AM_INIT_AUTOMAKE])dnl
24
25	AC_ARG_WITH(target-subdir,
26	[ --with-target-subdir=DIR],
27	TARGET_SUBDIR="$withval",
28	TARGET_SUBDIR=".")
29
30	RTEMS_TOPdir="$1";
31	AC_SUBST(RTEMS_TOPdir)
32
33	dnl Determine RTEMS Version string from the VERSION file
34	dnl Hopefully, Joel never changes its format ;-
35	AC_MSG_CHECKING([for RTEMS Version])
36	if test -r "${srcdir}/${RTEMS_TOPdir}/VERSION"; then
37	changequote(,)dnl
38	RTEMS_VERSION=`grep Version ${srcdir}/${RTEMS_TOPdir}/VERSION \| \
39	sed -e 's%RTEMS[ ]Version[ ]\(.\)[ ]%\1%g'`
40	changequote([,])dnl
41	else
42	AC_MSG_ERROR(Unable to find ${RTEMS_TOPdir}/VERSION)
43	fi
44	if test -z "$RTEMS_VERSION"; then
45	AC_MSG_ERROR(Unable to determine version)
46	fi
47	AC_MSG_RESULT($RTEMS_VERSION)
48	])dnl
49
50	# Do all the work for Automake. This macro actually does too much --
51	# some checks are only needed if your package does certain things.
52	# But this isn't really a big deal.
53
54	# serial 1
55
56	dnl Usage:
57	dnl AM_INIT_AUTOMAKE(package,version, [no-define])
58
59	AC_DEFUN(AM_INIT_AUTOMAKE,
60	[AC_REQUIRE([AC_PROG_INSTALL])
61	dnl We require 2.13 because we rely on SHELL being computed by configure.
62	AC_PREREQ([2.13])
63	PACKAGE=[$1]
64	AC_SUBST(PACKAGE)
65	VERSION=[$2]
66	AC_SUBST(VERSION)
67	dnl test to see if srcdir already configured
68	if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
69	AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
70	fi
71	ifelse([$3],,
72	AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
73	AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package]))
74	AC_REQUIRE([AM_SANITY_CHECK])
75	AC_REQUIRE([AC_ARG_PROGRAM])
76	dnl FIXME This is truly gross.
77	missing_dir=`cd $ac_aux_dir && pwd`
78	AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir)
79	AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)
80	AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir)
81	AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)
82	AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir)
83	AC_REQUIRE([AC_PROG_MAKE_SET])])
84
85	#
86	# Check to make sure that the build environment is sane.
87	#
88
89	AC_DEFUN(AM_SANITY_CHECK,
90	[AC_MSG_CHECKING([whether build environment is sane])
91	# Just in case
92	sleep 1
93	echo timestamp > conftestfile
94	# Do `set' in a subshell so we don't clobber the current shell's
95	# arguments. Must try -L first in case configure is actually a
96	# symlink; some systems play weird games with the mod time of symlinks
97	# (eg FreeBSD returns the mod time of the symlink's containing
98	# directory).
99	if (
100	set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null`
101	if test "[$]*" = "X"; then
102	# -L didn't work.
103	set X `ls -t $srcdir/configure conftestfile`
104	fi
105	if test "[$]*" != "X $srcdir/configure conftestfile" \
106	&& test "[$]*" != "X conftestfile $srcdir/configure"; then
107
108	# If neither matched, then we have a broken ls. This can happen
109	# if, for instance, CONFIG_SHELL is bash and it inherits a
110	# broken ls alias from the environment. This has actually
111	# happened. Such a system could not be considered "sane".
112	AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
113	alias in your environment])
114	fi
115
116	test "[$]2" = conftestfile
117	)
118	then
119	# Ok.
120	:
121	else
122	AC_MSG_ERROR([newly created file is older than distributed files!
123	Check your system clock])
124	fi
125	rm -f conftest*
126	AC_MSG_RESULT(yes)])
127
128	dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY)
129	dnl The program must properly implement --version.
130	AC_DEFUN(AM_MISSING_PROG,
131	[AC_MSG_CHECKING(for working $2)
132	# Run test in a subshell; some versions of sh will print an error if
133	# an executable is not found, even if stderr is redirected.
134	# Redirect stdin to placate older versions of autoconf. Sigh.
135	if ($2 --version) < /dev/null > /dev/null 2>&1; then
136	$1=$2
137	AC_MSG_RESULT(found)
138	else
139	$1="$3/missing $2"
140	AC_MSG_RESULT(missing)
141	fi
142	AC_SUBST($1)])
143
144	dnl
145	dnl $Id$
146	dnl
147
148	dnl canonicalize target cpu
149	dnl NOTE: Most rtems targets do not fullfil autoconf's
150	dnl target naming conventions "processor-vendor-os"
151	dnl Therefore autoconf's AC_CANONICAL_TARGET will fail for them
152	dnl and we have to fix it for rtems ourselves
153
154	AC_DEFUN(RTEMS_CANONICAL_TARGET_CPU,
155	[
156	AC_CANONICAL_SYSTEM
157	AC_MSG_CHECKING(rtems target cpu)
158	changequote(,)dnl
159	case "${target}" in
160	# hpux unix port should go here
161	i[3456]86-go32-rtems*)
162	RTEMS_CPU=i386
163	;;
164	i[3456]86-pc-linux*) # unix "simulator" port
165	RTEMS_CPU=unix
166	;;
167	i[3456]86-freebsd2) # unix "simulator" port
168	RTEMS_CPU=unix
169	;;
170	no_cpu-rtems)
171	RTEMS_CPU=no_cpu
172	;;
173	sparc-sun-solaris*) # unix "simulator" port
174	RTEMS_CPU=unix
175	;;
176	*)
177	RTEMS_CPU=`echo $target \| sed 's%^\([^-]\)-\(.\)$%\1%'`
178	;;
179	esac
180	changequote([,])dnl
181	AC_SUBST(RTEMS_CPU)
182	AC_MSG_RESULT($RTEMS_CPU)
183	])
184
185	dnl $Id$
186
187	AC_DEFUN(RTEMS_CANONICAL_HOST,
188	[dnl
189	AC_REQUIRE([AC_CANONICAL_HOST])
190	RTEMS_HOST=$host_os
191	changequote(,)dnl
192	case "${target}" in
193	# hpux unix port should go here
194	i[3456]86-pc-linux*) # unix "simulator" port
195	RTEMS_HOST=Linux
196	;;
197	i[3456]86-freebsd2) # unix "simulator" port
198	RTEMS_HOST=FreeBSD
199	;;
200	sparc-sun-solaris*) # unix "simulator" port
201	RTEMS_HOST=Solaris
202	;;
203	*)
204	;;
205	esac
206	changequote([,])dnl
207	AC_SUBST(RTEMS_HOST)
208	])dnl
209
210	# Add --enable-maintainer-mode option to configure.
211	# From Jim Meyering
212
213	# serial 1
214
215	AC_DEFUN(AM_MAINTAINER_MODE,
216	[AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
217	dnl maintainer-mode is disabled by default
218	AC_ARG_ENABLE(maintainer-mode,
219	[ --enable-maintainer-mode enable make rules and dependencies not useful
220	(and sometimes confusing) to the casual installer],
221	USE_MAINTAINER_MODE=$enableval,
222	USE_MAINTAINER_MODE=no)
223	AC_MSG_RESULT($USE_MAINTAINER_MODE)
224	AM_CONDITIONAL(MAINTAINER_MODE, test $USE_MAINTAINER_MODE = yes)
225	MAINT=$MAINTAINER_MODE_TRUE
226	AC_SUBST(MAINT)dnl
227	]
228	)
229
230	# Define a conditional.
231
232	AC_DEFUN(AM_CONDITIONAL,
233	[AC_SUBST($1_TRUE)
234	AC_SUBST($1_FALSE)
235	if $2; then
236	$1_TRUE=
237	$1_FALSE='#'
238	else
239	$1_TRUE='#'
240	$1_FALSE=
241	fi])
242
243	dnl $Id$
244
245	AC_DEFUN(RTEMS_ENABLE_CXX,
246	[
247	AC_ARG_ENABLE(cxx,
248	[ --enable-cxx enable C++ support,]
249	[ and build the rtems++ library],
250	[case "${enableval}" in
251	yes) RTEMS_HAS_CPLUSPLUS=yes ;;
252	no) RTEMS_HAS_CPLUSPLUS=no ;;
253	*) AC_MSG_ERROR(bad value ${enableval} for enable-cxx option) ;;
254	esac], [RTEMS_HAS_CPLUSPLUS=no])
255	])
256
257	dnl $Id$
258
259	AC_DEFUN(RTEMS_ENABLE_LIBCDIR,
260	[
261	AC_ARG_ENABLE(libcdir,
262	[ --enable-libcdir=directory set the directory for the C library],
263	[ RTEMS_LIBC_DIR="${enableval}" ; \
264	test -d ${enableval} \|\| AC_MSG_ERROR("$enableval is not a directory" ) ] )
265	AC_SUBST(RTEMS_LIBC_DIR)dnl
266	])
267
268	dnl $Id$
269
270	dnl Override the set of BSPs to be built.
271	dnl used by the toplevel configure script
272	dnl RTEMS_ENABLE_RTEMSBSP(rtems_bsp_list)
273	AC_DEFUN(RTEMS_ENABLE_RTEMSBSP,
274	[
275	AC_BEFORE([$0], [RTEMS_ENV_RTEMSBSP])dnl
276	AC_ARG_ENABLE(rtemsbsp,
277	[ --enable-rtemsbsp=bsp1 bsp2 .. BSPs to include in build],
278	[case "${enableval}" in
279	yes\|no) AC_MSG_ERROR([missing argument to --enable-rtemsbsp=\"bsp1 bsp2\"]);;
280	*) $1=$enableval;;
281	esac],[$1=""])
282	])
283
284	dnl Pass a single BSP via an environment variable
285	dnl used by per BSP configure scripts
286	AC_DEFUN(RTEMS_ENV_RTEMSBSP,
287	[dnl
288	AC_BEFORE([$0], [RTEMS_ENABLE_RTEMSBSP])dnl
289	AC_BEFORE([$0], [RTEMS_PROJECT_ROOT])dnl
290	AC_BEFORE([$0], [RTEMS_CHECK_CUSTOM_BSP])dnl
291	AC_BEFORE([$0], [RTEMS_CHECK_MULTIPROCESSING])dnl
292	AC_BEFORE([$0], [RTEMS_CHECK_POSIX_API])dnl
293
294	AC_MSG_CHECKING([for RTEMS_BSP])
295	AC_CACHE_VAL(rtems_cv_RTEMS_BSP,
296	[dnl
297	test -n "${RTEMS_BSP}" && rtems_cv_RTEMS_BSP="$RTEMS_BSP";
298	])dnl
299	if test -z "$rtems_cv_RTEMS_BSP"; then
300	AC_MSG_ERROR([Missing RTEMS_BSP])
301	fi
302	RTEMS_BSP="$rtems_cv_RTEMS_BSP"
303	AC_MSG_RESULT(${RTEMS_BSP})
304	AC_SUBST(RTEMS_BSP)
305	])
306
307	dnl
308	dnl $Id$
309	dnl
310
311	AC_DEFUN(RTEMS_PROJECT_ROOT,
312	[dnl
313	AC_REQUIRE([RTEMS_TOP])
314	if test "$TARGET_SUBDIR" = "." ; then
315	PROJECT_ROOT=$RTEMS_TOPdir/'$(top_builddir)';
316	else
317	PROJECT_ROOT=../$RTEMS_TOPdir/'$(top_builddir)'
318	fi
319	AC_SUBST(PROJECT_ROOT)
320
321	RTEMS_ROOT=$RTEMS_TOPdir/'$(top_builddir)'/c/$RTEMS_BSP
322	AC_SUBST(RTEMS_ROOT)
323
324	INSTALL_CHANGE="\$(KSH) \$(PROJECT_ROOT)/tools/build/install-if-change"
325	AC_SUBST(INSTALL_CHANGE)
326
327	PACKHEX="\$(PROJECT_ROOT)/tools/build/packhex"
328	AC_SUBST(PACKHEX)
329	])
330
331
332	dnl $Id$
333
334	dnl Report all available bsps for a target,
335	dnl check if a bsp-subdirectory is present for all bsps found
336	dnl
337	dnl RTEMS_CHECK_BSPS(bsp_list)
338	AC_DEFUN(RTEMS_CHECK_BSPS,
339	[
340	AC_REQUIRE([RTEMS_CHECK_CPU])dnl sets RTEMS_CPU, target
341	AC_REQUIRE([RTEMS_TOP])dnl sets RTEMS_TOPdir
342	AC_MSG_CHECKING([for bsps])
343	case "${target}" in
344	changequote(,)dnl
345	i[3456]86-go32-rtems*)
346	changequote([,])dnl
347	$1="go32 go32_p5"
348	;;
349	*)
350	files=`ls $srcdir/$RTEMS_TOPdir/c/src/lib/libbsp/$RTEMS_CPU`
351	for file in $files; do
352	case $file in
353	shared*);;
354	Makefile*);;
355	READ*);;
356	CVS*);;
357	pxfl*);;
358	go32*);; # so the i386 port can pick up the other Makefiles
359	# Now account for BSPs with build variants
360	gen68360) rtems_bsp="$rtems_bsp gen68360 gen68360_040";;
361	p4000) rtems_bsp="$rtems_bsp p4600 p4650";;
362	mvme162) rtems_bsp="$rtems_bsp mvme162 mvme162lx";;
363	*) $1="[$]$1 $file";;
364	esac;
365	done
366	;;
367	esac
368	AC_MSG_RESULT([[$]$1 .. done])
369	])dnl
370
371	AC_DEFUN(RTEMS_CHECK_CUSTOM_BSP,
372	[dnl
373	AC_REQUIRE([RTEMS_TOP])
374
375	AC_MSG_CHECKING([for make/custom/[$]$1.cfg])
376	if test -r "$srcdir/$RTEMS_TOPdir/make/custom/[$]$1.cfg"; then
377	AC_MSG_RESULT([yes])
378	else
379	AC_MSG_ERROR([no])
380	fi
381	])dnl
382
383	dnl $Id$
384
385	dnl check if RTEMS support a cpu
386	AC_DEFUN(RTEMS_CHECK_CPU,
387	[dnl
388	AC_REQUIRE([RTEMS_TOP])
389	AC_REQUIRE([RTEMS_CANONICAL_TARGET_CPU])
390	AC_BEFORE([$0], [RTEMS_CHECK_POSIX_API])dnl
391
392	# Is this a supported CPU?
393	AC_MSG_CHECKING([if cpu $RTEMS_CPU is supported])
394	if test -d "$srcdir/$RTEMS_TOPdir/c/src/exec/score/cpu/$RTEMS_CPU"; then
395	AC_MSG_RESULT(yes)
396	else
397	AC_MSG_ERROR(no)
398	fi
399	])dnl
400
401
402	dnl $Id$
403	dnl
404	AC_DEFUN(RTEMS_CHECK_POSIX_API,
405	[dnl
406	AC_REQUIRE([RTEMS_CHECK_CPU])dnl
407	AC_REQUIRE([RTEMS_ENABLE_POSIX])dnl
408
409	AC_CACHE_CHECK([whether BSP supports libposix],
410	rtems_cv_HAS_POSIX_API,
411	[dnl
412	case "$RTEMS_CPU" in
413	unix*)
414	rtems_cv_HAS_POSIX_API="no"
415	;;
416	*)
417	if test "${RTEMS_HAS_POSIX_API}" = "yes"; then
418	rtems_cv_HAS_POSIX_API="yes";
419	else
420	rtems_cv_HAS_POSIX_API="disabled";
421	fi
422	;;
423	esac])
424	if test "$rtems_cv_HAS_POSIX_API" = "yes"; then
425	HAS_POSIX_API="yes";
426	else
427	HAS_POSIX_API="no";
428	fi
429	AC_SUBST(HAS_POSIX_API)dnl
430	])
431
432	dnl $Id$
433
434	AC_DEFUN(RTEMS_ENABLE_POSIX,
435	[
436	AC_BEFORE([$0], [RTEMS_CHECK_POSIX_API])dnl
437
438	AC_ARG_ENABLE(posix,
439	[ --enable-posix enable posix interface],
440	[case "${enableval}" in
441	yes) RTEMS_HAS_POSIX_API=yes ;;
442	no) RTEMS_HAS_POSIX_API=no ;;
443	*) AC_MSG_ERROR(bad value ${enableval} for enable-posix option) ;;
444	esac],[RTEMS_HAS_POSIX_API=yes])
445	AC_SUBST(RTEMS_HAS_POSIX_API)
446
447	changequote(,)dnl
448	case "${target}" in
449	# hpux unix port should go here
450	i[3456]86-go32-rtems*)
451	RTEMS_HAS_POSIX_API=no
452	;;
453	i[3456]86-pc-linux*) # unix "simulator" port
454	RTEMS_HAS_POSIX_API=no
455	;;
456	i[3456]86-freebsd2) # unix "simulator" port
457	RTEMS_HAS_POSIX_API=no
458	;;
459	no_cpu-rtems)
460	RTEMS_HAS_POSIX_API=no
461	;;
462	sparc-sun-solaris*) # unix "simulator" port
463	RTEMS_HAS_POSIX_API=no
464	;;
465	*)
466	;;
467	esac
468	changequote([,])dnl
469	AC_SUBST(RTEMS_HAS_POSIX_API)
470	])
471
472	dnl
473	dnl $Id$
474	dnl
475
476	AC_DEFUN(RTEMS_CHECK_MULTIPROCESSING,
477	[dnl
478	AC_REQUIRE([RTEMS_TOP])dnl
479	AC_REQUIRE([RTEMS_CHECK_CPU])dnl
480	AC_REQUIRE([RTEMS_ENABLE_MULTIPROCESSING])dnl
481
482	AC_CACHE_CHECK([whether BSP supports multiprocessing],
483	rtems_cv_HAS_MP,
484	[dnl
485	if test -d "$srcdir/${RTEMS_TOPdir}/c/src/lib/libbsp/${RTEMS_CPU}/${$1}/shmsupp"; then
486	if test "$RTEMS_HAS_MULTIPROCESSING" = "yes"; then
487	rtems_cv_HAS_MP="yes" ;
488	else
489	rtems_cv_HAS_MP="disabled";
490	fi
491	else
492	rtems_cv_HAS_MP="no";
493	fi])
494	if test "$rtems_cv_HAS_MP" = "yes"; then
495	HAS_MP="yes"
496	else
497	HAS_MP="no"
498	fi
499	AC_SUBST(HAS_MP)
500	])
501
502	dnl $Id$
503
504	AC_DEFUN(RTEMS_ENABLE_MULTIPROCESSING,
505	[
506	AC_ARG_ENABLE(multiprocessing,
507	[ --enable-multiprocessing enable multiprocessing interface],
508	[case "${enableval}" in
509	yes) RTEMS_HAS_MULTIPROCESSING=yes ;;
510	no) RTEMS_HAS_MULTIPROCESSING=no ;;
511	*) AC_MSG_ERROR(bad value ${enableval} for enable-multiprocessing option) ;;
512	esac],[RTEMS_HAS_MULTIPROCESSING=no])
513	AC_SUBST(RTEMS_HAS_MULTIPROCESSING)dnl
514	])
515
516	dnl $Id$
517	dnl
518	AC_DEFUN(RTEMS_CHECK_CXX,
519	[dnl
520	AC_REQUIRE([RTEMS_CHECK_CPU])dnl
521	AC_REQUIRE([RTEMS_PROG_CC_FOR_TARGET])dnl
522	AC_REQUIRE([RTEMS_PROG_CXX_FOR_TARGET])dnl
523	AC_CACHE_CHECK([whether to build rtems++],
524	rtems_cv_HAS_CPLUSPLUS,
525	[ if test "$RTEMS_HAS_CPLUSPLUS" = "yes"; then
526	if test -n "$CXX_FOR_TARGET"; then
527	rtems_cv_HAS_CPLUSPLUS="yes"
528	else
529	rtems_cv_HAS_CPLUSPLUS="no"
530	fi
531	else
532	rtems_cv_HAS_CPLUSPLUS="no"
533	fi])
534	HAS_CPLUSPLUS="$rtems_cv_HAS_CPLUSPLUS";
535	AC_SUBST(HAS_CPLUSPLUS)dnl
536	])
537
538	dnl
539	dnl $Id$
540	dnl
541	dnl Check for target gcc
542	dnl
543	dnl 98/05/20 Ralf Corsepius (corsepiu@faw.uni-ulm.de)
544	dnl Completely reworked
545
546	AC_DEFUN(RTEMS_PROG_CC,
547	[
548	AC_BEFORE([$0], [AC_PROG_CPP])dnl
549	AC_BEFORE([$0], [AC_PROG_CC])dnl
550	AC_BEFORE([$0], [RTEMS_CANONICALIZE_TOOLS])dnl
551	AC_REQUIRE([RTEMS_TOOL_PREFIX])dnl
552
553	dnl Only accept gcc and cc
554	dnl NOTE: This might be too restrictive for native compilation
555	AC_PATH_PROGS(CC_FOR_TARGET, "$program_prefix"gcc "$program_prefix"cc )
556	test -z "$CC_FOR_TARGET" \
557	&& AC_MSG_ERROR([no acceptable cc found in \$PATH])
558
559	dnl backup
560	rtems_save_CC=$CC
561	rtems_save_CFLAGS=$CFLAGS
562
563	dnl temporarily set CC
564	CC=$CC_FOR_TARGET
565
566	AC_PROG_CC_WORKS
567	AC_PROG_CC_GNU
568
569	if test $ac_cv_prog_gcc = yes; then
570	GCC=yes
571	dnl Check whether -g works, even if CFLAGS is set, in case the package
572	dnl plays around with CFLAGS (such as to build both debugging and
573	dnl normal versions of a library), tasteless as that idea is.
574	ac_test_CFLAGS="${CFLAGS+set}"
575	ac_save_CFLAGS="$CFLAGS"
576	CFLAGS=
577	AC_PROG_CC_G
578	if test "$ac_test_CFLAGS" = set; then
579	CFLAGS="$ac_save_CFLAGS"
580	elif test $ac_cv_prog_cc_g = yes; then
581	CFLAGS="-g -O2"
582	else
583	CFLAGS="-O2"
584	fi
585	else
586	GCC=
587	test "${CFLAGS+set}" = set \|\| CFLAGS="-g"
588	fi
589
590	rtems_cv_prog_gcc=$ac_cv_prog_gcc
591	rtems_cv_prog_cc_g=$ac_cv_prog_cc_g
592	rtems_cv_prog_cc_works=$ac_cv_prog_cc_works
593	rtems_cv_prog_cc_cross=$ac_cv_prog_cc_cross
594
595	dnl restore initial values
596	CC=$rtems_save_CC
597	CFLAGS=$rtems_save_CFLAGS
598
599	unset ac_cv_prog_gcc
600	unset ac_cv_prog_cc_g
601	unset ac_cv_prog_cc_works
602	unset ac_cv_prog_cc_cross
603	])
604
605	AC_DEFUN(RTEMS_PROG_CC_FOR_TARGET,
606	[
607	dnl check target cc
608	RTEMS_PROG_CC
609	dnl check if the compiler supports --specs
610	RTEMS_GCC_SPECS
611	dnl check if the target compiler may use --pipe
612	RTEMS_GCC_PIPE
613	dnl check if the compiler supports --specs if gcc28 is requested
614	if test "$RTEMS_USE_GCC272" != "yes" ; then
615	if test "$rtems_cv_gcc_specs" = "no"; then
616	AC_MSG_WARN([*** disabling --enable-gcc28])
617	RTEMS_USE_GCC272=yes
618	fi
619	fi
620	test "$rtems_cv_gcc_pipe" = "yes" && CC_FOR_TARGET="$CC_FOR_TARGET --pipe"
621
622	dnl FIXME: HACK for egcs/cygwin mixing '\\' and '/' in gcc -print-*
623	case $host_os in
624	cygwin) GCCSED="\| sed 's%\\\\%/%g'" ;;
625	*) ;;
626	esac
627	AC_SUBST(GCCSED)
628	])
629
630	dnl
631	dnl $Id$
632	dnl
633	dnl Set target tools
634	dnl
635	dnl 98/06/23 Ralf Corsepius (corsepiu@faw.uni-ulm.de)
636	dnl fixing cache/environment variable handling
637	dnl adding checks for cygwin/egcs '\\'-bug
638	dnl adding checks for ranlib/ar -s problem
639	dnl
640	dnl 98/02/12 Ralf Corsepius (corsepiu@faw.uni-ulm.de)
641	dnl
642
643	AC_DEFUN(RTEMS_GCC_PRINT,
644	[ case $host_os in
645	cygwin)
646	dnl FIXME: Hack for cygwin/egcs reporting mixed '\\' and '/'
647	dnl Should be removed once cygwin/egcs reports '/' only
648	$1=`$CC_FOR_TARGET --print-prog-name=$2 \| sed -e 's%\\\\%/%g' `
649	;;
650	*)
651	$1=`$CC_FOR_TARGET --print-prog-name=$2`
652	;;
653	esac
654	])
655
656	AC_DEFUN(RTEMS_PATH_TOOL,
657	[
658	AC_MSG_CHECKING([target's $2])
659	AC_CACHE_VAL(ac_cv_path_$1,:)
660	AC_MSG_RESULT([$ac_cv_path_$1])
661
662	if test -n "$ac_cv_path_$1"; then
663	dnl retrieve the value from the cache
664	$1=$ac_cv_path_$1
665	else
666	dnl the cache was not set
667	if test -z "[$]$1" ; then
668	if test "$rtems_cv_prog_gcc" = "yes"; then
669	# We are using gcc, ask it about its tool
670	# NOTE: Necessary if gcc was configured to use the target's
671	# native tools or uses prefixes for gnutools (e.g. gas instead of as)
672	RTEMS_GCC_PRINT($1,$2)
673	fi
674	else
675	# The user set an environment variable.
676	# Check whether it is an absolute path, otherwise AC_PATH_PROG
677	# will override the environment variable, which isn't what the user
678	# intends
679	AC_MSG_CHECKING([whether environment variable $1 is an absolute path])
680	case "[$]$1" in
681	/*) # valid
682	AC_MSG_RESULT("yes")
683	;;
684	*) # invalid for AC_PATH_PROG
685	AC_MSG_RESULT("no")
686	AC_MSG_ERROR([***]
687	[Environment variable $1 should either]
688	[be unset (preferred) or contain an absolute path])
689	;;
690	esac
691	fi
692
693	AC_PATH_PROG($1,"$program_prefix"$2,$3)
694	fi
695	])
696
697	AC_DEFUN(RTEMS_CANONICALIZE_TOOLS,
698	[AC_REQUIRE([RTEMS_PROG_CC])dnl
699
700	dnl FIXME: What shall be done if these tools are not available?
701	RTEMS_PATH_TOOL(AR_FOR_TARGET,ar,no)
702	RTEMS_PATH_TOOL(AS_FOR_TARGET,as,no)
703	RTEMS_PATH_TOOL(LD_FOR_TARGET,ld,no)
704	RTEMS_PATH_TOOL(NM_FOR_TARGET,nm,no)
705
706	dnl special treatment of ranlib
707	RTEMS_PATH_TOOL(RANLIB_FOR_TARGET,ranlib,no)
708	if test "$RANLIB_FOR_TARGET" = "no"; then
709	# ranlib wasn't found; check if ar -s is available
710	RTEMS_AR_FOR_TARGET_S
711	if test $rtems_cv_AR_FOR_TARGET_S = "yes" ; then
712	dnl override RANLIB_FOR_TARGET's cache
713	ac_cv_path_RANLIB_FOR_TARGET="$AR_FOR_TARGET -s"
714	RANLIB_FOR_TARGET=$ac_cv_path_RANLIB_FOR_TARGET
715	else
716	AC_MSG_ERROR([***]
717	[Can't figure out how to build a library index]
718	[Neither ranlib nor ar -s seem to be available] )
719	fi
720	fi
721
722	dnl NOTE: These may not be available if not using gnutools
723	RTEMS_PATH_TOOL(OBJCOPY_FOR_TARGET,objcopy,no)
724	RTEMS_PATH_TOOL(SIZE_FOR_TARGET,size,no)
725	RTEMS_PATH_TOOL(STRIP_FOR_TARGET,strip,no)
726	])
727
728	dnl
729	dnl $Id$
730	dnl
731
732	AC_DEFUN(RTEMS_AR_FOR_TARGET_S,
733	[
734	AC_CACHE_CHECK(whether $AR_FOR_TARGET -s works,
735	rtems_cv_AR_FOR_TARGET_S,
736	[
737	cat > conftest.$ac_ext <<EOF
738	int foo( int b )
739	{ return b; }
740	EOF
741	if AC_TRY_COMMAND($CC_FOR_TARGET -o conftest.o -c conftest.$ac_ext) \
742	&& AC_TRY_COMMAND($AR_FOR_TARGET -sr conftest.a conftest.o) \
743	&& test -s conftest.a ; \
744	then
745	rtems_cv_AR_FOR_TARGET_S="yes"
746	else
747	rtems_cv_AR_FOR_TARGET_S="no"
748	fi
749	rm -f conftest*
750	])
751	])
752
753
754	dnl
755	dnl $Id$
756	dnl
757	dnl Set program_prefix
758	dnl
759	dnl 98/05/20 Ralf Corsepius (corsepiu@faw.uni-ulm.de)
760	dnl Extracted from configure
761
762	AC_DEFUN(RTEMS_TOOL_PREFIX,
763	[AC_REQUIRE([AC_CANONICAL_TARGET])dnl
764	AC_REQUIRE([AC_CANONICAL_BUILD])dnl
765
766	changequote(,)dnl
767	if [ "${program_prefix}" = "NONE" ] ; then
768	if [ "${target}" = "${host}" ] ; then
769	program_prefix=
770	else
771	program_prefix=${target}-
772	fi
773	fi
774	changequote([,])dnl
775	])
776
777	dnl
778	dnl $Id$
779	dnl
780	dnl Check whether the target compiler accepts -specs
781	dnl
782
783	AC_DEFUN(RTEMS_GCC_SPECS,
784	[AC_REQUIRE([RTEMS_PROG_CC])
785	AC_CACHE_CHECK(whether $CC_FOR_TARGET accepts -specs,rtems_cv_gcc_specs,
786	[
787	rtems_cv_gcc_specs=no
788	if test "$rtems_cv_prog_gcc" = "yes"; then
789	touch confspec
790	echo 'void f(){}' >conftest.c
791	if test -z "`${CC_FOR_TARGET} -specs confspec -c conftest.c 2>&1`";then
792	rtems_cv_gcc_specs=yes
793	fi
794	fi
795	rm -f confspec conftest*
796	])])
797
798	dnl
799	dnl $Id$
800	dnl
801	dnl Check whether the target compiler accepts -pipe
802	dnl
803	dnl 98/02/11 Ralf Corsepius corsepiu@faw.uni-ulm.de
804	dnl
805
806	AC_DEFUN(RTEMS_GCC_PIPE,
807	[AC_REQUIRE([RTEMS_PROG_CC])
808	AC_REQUIRE([AC_CANONICAL_HOST])
809	AC_CACHE_CHECK(whether $CC_FOR_TARGET accepts --pipe,rtems_cv_gcc_pipe,
810	[
811	rtems_cv_gcc_pipe=no
812	if test "$rtems_cv_prog_gcc" = "yes"; then
813	case "$host_os" in
814	cygwin*)
815	;;
816	*)
817	echo 'void f(){}' >conftest.c
818	if test -z "`${CC_FOR_TARGET} --pipe -c conftest.c 2>&1`";then
819	rtems_cv_gcc_pipe=yes
820	fi
821	rm -f conftest*
822	;;
823	esac
824	fi
825	])
826	])
827
828	dnl
829	dnl $Id$
830	dnl
831	dnl Check for target g++
832	dnl
833	dnl 98/05/20 Ralf Corsepius (corsepiu@faw.uni-ulm.de)
834	dnl Completely reworked
835
836	AC_DEFUN(RTEMS_PROG_CXX,
837	[
838	AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl
839	AC_BEFORE([$0], [AC_PROG_CXX])dnl
840	AC_BEFORE([$0], [RTEMS_CANONICALIZE_TOOLS])dnl
841	AC_REQUIRE([RTEMS_TOOL_PREFIX])dnl
842
843	dnl Only accept g++ and c++
844	dnl NOTE: This might be too restrictive for native compilation
845	AC_PATH_PROGS(CXX_FOR_TARGET, "$program_prefix"g++ "$program_prefix"c++)
846	test -z "$CXX_FOR_TARGET" \
847	&& AC_MSG_ERROR([no acceptable c++ found in \$PATH])
848
849	dnl backup
850	rtems_save_CXX=$CXX
851	rtems_save_CXXFLAGS=$CXXFLAGS
852
853	dnl temporarily set CXX
854	CXX=$CXX_FOR_TARGET
855
856	AC_PROG_CXX_WORKS
857	AC_PROG_CXX_GNU
858
859	if test $ac_cv_prog_gxx = yes; then
860	GXX=yes
861	dnl Check whether -g works, even if CXXFLAGS is set, in case the package
862	dnl plays around with CXXFLAGS (such as to build both debugging and
863	dnl normal versions of a library), tasteless as that idea is.
864	ac_test_CXXFLAGS="${CXXFLAGS+set}"
865	ac_save_CXXFLAGS="$CXXFLAGS"
866	CXXFLAGS=
867	AC_PROG_CXX_G
868	if test "$ac_test_CXXFLAGS" = set; then
869	CXXFLAGS="$ac_save_CXXFLAGS"
870	elif test $ac_cv_prog_cxx_g = yes; then
871	CXXFLAGS="-g -O2"
872	else
873	CXXFLAGS="-O2"
874	fi
875	else
876	GXX=
877	test "${CXXFLAGS+set}" = set \|\| CXXFLAGS="-g"
878	fi
879
880	rtems_cv_prog_gxx=$ac_cv_prog_gxx
881	rtems_cv_prog_cxx_g=$ac_cv_prog_cxx_g
882	rtems_cv_prog_cxx_works=$ac_cv_prog_cxx_works
883	rtems_cv_prog_cxx_cross=$ac_cv_prog_cxx_cross
884
885	CXX=$rtems_save_CXX
886	CXXFLAGS=$rtems_save_CXXFLAGS
887
888	dnl restore initial values
889	unset ac_cv_prog_gxx
890	unset ac_cv_prog_cc_g
891	unset ac_cv_prog_cxx_works
892	unset ac_cv_prog_cxx_cross
893	])
894
895	AC_DEFUN(RTEMS_PROG_CXX_FOR_TARGET,
896	[
897	RTEMS_PROG_CXX
898	if test "$rtems_cv_prog_cc_cross" != "$rtems_cv_prog_cxx_cross"; then
899	AC_MSG_ERROR([***]
900	[Inconsistency in compiler configuration:]
901	[Target C compiler and Target C++ compiler]
902	[must both either be cross compilers or native compilers]
903	[Hint: If building a posix bsp: LD_LIBRARY_PATH?] )
904	fi
905	])
906

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