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Commit | Line | Data |
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b2cace29 KC |
1 | m4_include([../config/acx.m4]) |
2 | m4_include([../config/gettext-sister.m4]) | |
b2cace29 KC |
3 | m4_include([../config/iconv.m4]) |
4 | m4_include([../config/lcmessage.m4]) | |
5 | m4_include([../config/lib-ld.m4]) | |
6 | m4_include([../config/lib-link.m4]) | |
7 | m4_include([../config/lib-prefix.m4]) | |
8 | m4_include([../config/progtest.m4]) | |
4977bab6 | 9 | |
2f51182a | 10 | dnl See whether we need a declaration for a function. |
86cf1cbd KG |
11 | dnl The result is highly dependent on the INCLUDES passed in, so make sure |
12 | dnl to use a different cache variable name in this macro if it is invoked | |
13 | dnl in a different context somewhere else. | |
f31e826b KG |
14 | dnl gcc_AC_CHECK_DECL(SYMBOL, |
15 | dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, INCLUDES]]]) | |
f6db393e | 16 | AC_DEFUN([gcc_AC_CHECK_DECL], |
f31e826b KG |
17 | [AC_MSG_CHECKING([whether $1 is declared]) |
18 | AC_CACHE_VAL(gcc_cv_have_decl_$1, | |
19 | [AC_TRY_COMPILE([$4], | |
86cf1cbd KG |
20 | [#ifndef $1 |
21 | char *(*pfn) = (char *(*)) $1 ; | |
f31e826b KG |
22 | #endif], eval "gcc_cv_have_decl_$1=yes", eval "gcc_cv_have_decl_$1=no")]) |
23 | if eval "test \"`echo '$gcc_cv_have_decl_'$1`\" = yes"; then | |
24 | AC_MSG_RESULT(yes) ; ifelse([$2], , :, [$2]) | |
a81fb89e | 25 | else |
f31e826b | 26 | AC_MSG_RESULT(no) ; ifelse([$3], , :, [$3]) |
2f51182a DE |
27 | fi |
28 | ])dnl | |
ac64120e | 29 | |
a81fb89e | 30 | dnl Check multiple functions to see whether each needs a declaration. |
f31e826b KG |
31 | dnl Arrange to define HAVE_DECL_<FUNCTION> to 0 or 1 as appropriate. |
32 | dnl gcc_AC_CHECK_DECLS(SYMBOLS, | |
33 | dnl [ACTION-IF-NEEDED [, ACTION-IF-NOT-NEEDED [, INCLUDES]]]) | |
f6db393e | 34 | AC_DEFUN([gcc_AC_CHECK_DECLS], |
ad6717df PB |
35 | [AC_FOREACH([gcc_AC_Func], [$1], |
36 | [AH_TEMPLATE(AS_TR_CPP(HAVE_DECL_[]gcc_AC_Func), | |
37 | [Define to 1 if we found a declaration for ']gcc_AC_Func[', otherwise | |
38 | define to 0.])])dnl | |
39 | for ac_func in $1 | |
a81fb89e | 40 | do |
ad6717df | 41 | ac_tr_decl=AS_TR_CPP([HAVE_DECL_$ac_func]) |
f31e826b KG |
42 | gcc_AC_CHECK_DECL($ac_func, |
43 | [AC_DEFINE_UNQUOTED($ac_tr_decl, 1) $2], | |
44 | [AC_DEFINE_UNQUOTED($ac_tr_decl, 0) $3], | |
7afe8c41 KG |
45 | dnl It is possible that the include files passed in here are local headers |
46 | dnl which supply a backup declaration for the relevant prototype based on | |
47 | dnl the definition of (or lack of) the HAVE_DECL_ macro. If so, this test | |
48 | dnl will always return success. E.g. see libiberty.h's handling of | |
49 | dnl `basename'. To avoid this, we define the relevant HAVE_DECL_ macro to | |
50 | dnl 1 so that any local headers used do not provide their own prototype | |
51 | dnl during this test. | |
52 | #undef $ac_tr_decl | |
53 | #define $ac_tr_decl 1 | |
f31e826b KG |
54 | $4 |
55 | ) | |
a81fb89e KG |
56 | done |
57 | ]) | |
58 | ||
3a000df0 KC |
59 | dnl 'make compare' can be significantly faster, if cmp itself can |
60 | dnl skip bytes instead of using tail. The test being performed is | |
61 | dnl "if cmp --ignore-initial=2 t1 t2 && ! cmp --ignore-initial=1 t1 t2" | |
269a7343 KG |
62 | dnl but we need to sink errors and handle broken shells. We also test |
63 | dnl for the parameter format "cmp file1 file2 skip1 skip2" which is | |
64 | dnl accepted by cmp on some systems. | |
f6db393e | 65 | AC_DEFUN([gcc_AC_PROG_CMP_IGNORE_INITIAL], |
3a000df0 KC |
66 | [AC_CACHE_CHECK([for cmp's capabilities], gcc_cv_prog_cmp_skip, |
67 | [ echo abfoo >t1 | |
68 | echo cdfoo >t2 | |
269a7343 | 69 | gcc_cv_prog_cmp_skip=slowcompare |
3a000df0 KC |
70 | if cmp --ignore-initial=2 t1 t2 > /dev/null 2>&1; then |
71 | if cmp --ignore-initial=1 t1 t2 > /dev/null 2>&1; then | |
269a7343 | 72 | : |
3a000df0 KC |
73 | else |
74 | gcc_cv_prog_cmp_skip=gnucompare | |
75 | fi | |
269a7343 KG |
76 | fi |
77 | if test $gcc_cv_prog_cmp_skip = slowcompare ; then | |
78 | if cmp t1 t2 2 2 > /dev/null 2>&1; then | |
79 | if cmp t1 t2 1 1 > /dev/null 2>&1; then | |
80 | : | |
81 | else | |
82 | gcc_cv_prog_cmp_skip=fastcompare | |
83 | fi | |
84 | fi | |
3a000df0 KC |
85 | fi |
86 | rm t1 t2 | |
87 | ]) | |
88 | make_compare_target=$gcc_cv_prog_cmp_skip | |
89 | AC_SUBST(make_compare_target) | |
90 | ]) | |
91 | ||
f1b54f9b | 92 | dnl See if the printf functions in libc support %p in format strings. |
f6db393e | 93 | AC_DEFUN([gcc_AC_FUNC_PRINTF_PTR], |
f1b54f9b KG |
94 | [AC_CACHE_CHECK(whether the printf functions support %p, |
95 | gcc_cv_func_printf_ptr, | |
96 | [AC_TRY_RUN([#include <stdio.h> | |
97 | ||
86cf1cbd | 98 | int main() |
f1b54f9b KG |
99 | { |
100 | char buf[64]; | |
101 | char *p = buf, *q = NULL; | |
102 | sprintf(buf, "%p", p); | |
103 | sscanf(buf, "%p", &q); | |
86cf1cbd | 104 | return (p != q); |
f1b54f9b KG |
105 | }], gcc_cv_func_printf_ptr=yes, gcc_cv_func_printf_ptr=no, |
106 | gcc_cv_func_printf_ptr=no) | |
107 | rm -f core core.* *.core]) | |
108 | if test $gcc_cv_func_printf_ptr = yes ; then | |
91029a29 | 109 | AC_DEFINE(HAVE_PRINTF_PTR, 1, [Define if printf supports "%p".]) |
f1b54f9b KG |
110 | fi |
111 | ]) | |
112 | ||
ac64120e | 113 | dnl See if symbolic links work and if not, try to substitute either hard links or simple copy. |
f6db393e | 114 | AC_DEFUN([gcc_AC_PROG_LN_S], |
ac64120e JW |
115 | [AC_MSG_CHECKING(whether ln -s works) |
116 | AC_CACHE_VAL(gcc_cv_prog_LN_S, | |
e566af04 MH |
117 | [rm -f conftestdata_t |
118 | echo >conftestdata_f | |
119 | if ln -s conftestdata_f conftestdata_t 2>/dev/null | |
ac64120e JW |
120 | then |
121 | gcc_cv_prog_LN_S="ln -s" | |
122 | else | |
e566af04 | 123 | if ln conftestdata_f conftestdata_t 2>/dev/null |
ac64120e JW |
124 | then |
125 | gcc_cv_prog_LN_S=ln | |
126 | else | |
35f06ae4 PB |
127 | if cp -p conftestdata_f conftestdata_t 2>/dev/null |
128 | then | |
129 | gcc_cv_prog_LN_S="cp -p" | |
130 | else | |
131 | gcc_cv_prog_LN_S=cp | |
132 | fi | |
ac64120e JW |
133 | fi |
134 | fi | |
e566af04 | 135 | rm -f conftestdata_f conftestdata_t |
ac64120e JW |
136 | ])dnl |
137 | LN_S="$gcc_cv_prog_LN_S" | |
138 | if test "$gcc_cv_prog_LN_S" = "ln -s"; then | |
139 | AC_MSG_RESULT(yes) | |
140 | else | |
141 | if test "$gcc_cv_prog_LN_S" = "ln"; then | |
142 | AC_MSG_RESULT([no, using ln]) | |
143 | else | |
35f06ae4 | 144 | AC_MSG_RESULT([no, and neither does ln, so using $gcc_cv_prog_LN_S]) |
ac64120e JW |
145 | fi |
146 | fi | |
147 | AC_SUBST(LN_S)dnl | |
148 | ]) | |
149 | ||
75923b2f MK |
150 | dnl Define MKDIR_TAKES_ONE_ARG if mkdir accepts only one argument instead |
151 | dnl of the usual 2. | |
f6db393e | 152 | AC_DEFUN([gcc_AC_FUNC_MKDIR_TAKES_ONE_ARG], |
75923b2f MK |
153 | [AC_CACHE_CHECK([if mkdir takes one argument], gcc_cv_mkdir_takes_one_arg, |
154 | [AC_TRY_COMPILE([ | |
155 | #include <sys/types.h> | |
156 | #ifdef HAVE_SYS_STAT_H | |
157 | # include <sys/stat.h> | |
158 | #endif | |
159 | #ifdef HAVE_UNISTD_H | |
160 | # include <unistd.h> | |
161 | #endif | |
162 | #ifdef HAVE_DIRECT_H | |
163 | # include <direct.h> | |
164 | #endif], [mkdir ("foo", 0);], | |
165 | gcc_cv_mkdir_takes_one_arg=no, gcc_cv_mkdir_takes_one_arg=yes)]) | |
166 | if test $gcc_cv_mkdir_takes_one_arg = yes ; then | |
91029a29 | 167 | AC_DEFINE(MKDIR_TAKES_ONE_ARG, 1, [Define if host mkdir takes a single argument.]) |
75923b2f MK |
168 | fi |
169 | ]) | |
170 | ||
f6db393e | 171 | AC_DEFUN([gcc_AC_PROG_INSTALL], |
76143254 JL |
172 | [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl |
173 | # Find a good install program. We prefer a C program (faster), | |
174 | # so one script is as good as another. But avoid the broken or | |
175 | # incompatible versions: | |
176 | # SysV /etc/install, /usr/sbin/install | |
177 | # SunOS /usr/etc/install | |
178 | # IRIX /sbin/install | |
179 | # AIX /bin/install | |
180 | # AFS /usr/afsws/bin/install, which mishandles nonexistent args | |
181 | # SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff" | |
182 | # ./install, which can be erroneously created by make from ./install.sh. | |
183 | AC_MSG_CHECKING(for a BSD compatible install) | |
184 | if test -z "$INSTALL"; then | |
185 | AC_CACHE_VAL(ac_cv_path_install, | |
186 | [ IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="${IFS}:" | |
187 | for ac_dir in $PATH; do | |
188 | # Account for people who put trailing slashes in PATH elements. | |
189 | case "$ac_dir/" in | |
190 | /|./|.//|/etc/*|/usr/sbin/*|/usr/etc/*|/sbin/*|/usr/afsws/bin/*|/usr/ucb/*) ;; | |
191 | *) | |
192 | # OSF1 and SCO ODT 3.0 have their own names for install. | |
193 | for ac_prog in ginstall scoinst install; do | |
194 | if test -f $ac_dir/$ac_prog; then | |
195 | if test $ac_prog = install && | |
196 | grep dspmsg $ac_dir/$ac_prog >/dev/null 2>&1; then | |
197 | # AIX install. It has an incompatible calling convention. | |
198 | # OSF/1 installbsd also uses dspmsg, but is usable. | |
199 | : | |
200 | else | |
201 | ac_cv_path_install="$ac_dir/$ac_prog -c" | |
202 | break 2 | |
203 | fi | |
204 | fi | |
205 | done | |
206 | ;; | |
207 | esac | |
208 | done | |
209 | IFS="$ac_save_IFS" | |
210 | ])dnl | |
211 | if test "${ac_cv_path_install+set}" = set; then | |
212 | INSTALL="$ac_cv_path_install" | |
213 | else | |
214 | # As a last resort, use the slow shell script. We don't cache a | |
215 | # path for INSTALL within a source directory, because that will | |
216 | # break other packages using the cache if that directory is | |
217 | # removed, or if the path is relative. | |
218 | INSTALL="$ac_install_sh" | |
219 | fi | |
220 | fi | |
221 | dnl We do special magic for INSTALL instead of AC_SUBST, to get | |
222 | dnl relative paths right. | |
223 | AC_MSG_RESULT($INSTALL) | |
5643c767 | 224 | AC_SUBST(INSTALL)dnl |
76143254 JL |
225 | |
226 | # Use test -z because SunOS4 sh mishandles braces in ${var-val}. | |
227 | # It thinks the first close brace ends the variable substitution. | |
228 | test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}' | |
229 | AC_SUBST(INSTALL_PROGRAM)dnl | |
230 | ||
231 | test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644' | |
232 | AC_SUBST(INSTALL_DATA)dnl | |
233 | ]) | |
ab87f8c8 | 234 | |
1072ec3f ZW |
235 | # mmap(2) blacklisting. Some platforms provide the mmap library routine |
236 | # but don't support all of the features we need from it. | |
237 | AC_DEFUN([gcc_AC_FUNC_MMAP_BLACKLIST], | |
3b0727a0 MR |
238 | [ |
239 | AC_CHECK_HEADER([sys/mman.h], | |
240 | [gcc_header_sys_mman_h=yes], [gcc_header_sys_mman_h=no]) | |
241 | AC_CHECK_FUNC([mmap], [gcc_func_mmap=yes], [gcc_func_mmap=no]) | |
242 | if test "$gcc_header_sys_mman_h" != yes \ | |
243 | || test "$gcc_func_mmap" != yes; then | |
1072ec3f ZW |
244 | gcc_cv_func_mmap_file=no |
245 | gcc_cv_func_mmap_dev_zero=no | |
246 | gcc_cv_func_mmap_anon=no | |
247 | else | |
248 | AC_CACHE_CHECK([whether read-only mmap of a plain file works], | |
249 | gcc_cv_func_mmap_file, | |
250 | [# Add a system to this blacklist if | |
251 | # mmap(0, stat_size, PROT_READ, MAP_PRIVATE, fd, 0) doesn't return a | |
252 | # memory area containing the same data that you'd get if you applied | |
253 | # read() to the same fd. The only system known to have a problem here | |
254 | # is VMS, where text files have record structure. | |
255 | case "$host_os" in | |
e31f8eda | 256 | vms* | ultrix*) |
1072ec3f ZW |
257 | gcc_cv_func_mmap_file=no ;; |
258 | *) | |
259 | gcc_cv_func_mmap_file=yes;; | |
260 | esac]) | |
261 | AC_CACHE_CHECK([whether mmap from /dev/zero works], | |
262 | gcc_cv_func_mmap_dev_zero, | |
263 | [# Add a system to this blacklist if it has mmap() but /dev/zero | |
264 | # does not exist, or if mmapping /dev/zero does not give anonymous | |
265 | # zeroed pages with both the following properties: | |
266 | # 1. If you map N consecutive pages in with one call, and then | |
267 | # unmap any subset of those pages, the pages that were not | |
268 | # explicitly unmapped remain accessible. | |
269 | # 2. If you map two adjacent blocks of memory and then unmap them | |
270 | # both at once, they must both go away. | |
271 | # Systems known to be in this category are Windows (all variants), | |
272 | # VMS, and Darwin. | |
273 | case "$host_os" in | |
2ce240d3 | 274 | vms* | cygwin* | pe | mingw* | darwin* | ultrix* | hpux10* | hpux11.00) |
1072ec3f ZW |
275 | gcc_cv_func_mmap_dev_zero=no ;; |
276 | *) | |
277 | gcc_cv_func_mmap_dev_zero=yes;; | |
278 | esac]) | |
279 | ||
280 | # Unlike /dev/zero, the MAP_ANON(YMOUS) defines can be probed for. | |
281 | AC_CACHE_CHECK([for MAP_ANON(YMOUS)], gcc_cv_decl_map_anon, | |
282 | [AC_TRY_COMPILE( | |
283 | [#include <sys/types.h> | |
4acab94b | 284 | #include <sys/mman.h> |
1072ec3f | 285 | #include <unistd.h> |
825b6926 | 286 | |
1072ec3f ZW |
287 | #ifndef MAP_ANONYMOUS |
288 | #define MAP_ANONYMOUS MAP_ANON | |
825b6926 | 289 | #endif |
1072ec3f ZW |
290 | ], |
291 | [int n = MAP_ANONYMOUS;], | |
292 | gcc_cv_decl_map_anon=yes, | |
293 | gcc_cv_decl_map_anon=no)]) | |
294 | ||
295 | if test $gcc_cv_decl_map_anon = no; then | |
296 | gcc_cv_func_mmap_anon=no | |
297 | else | |
298 | AC_CACHE_CHECK([whether mmap with MAP_ANON(YMOUS) works], | |
299 | gcc_cv_func_mmap_anon, | |
300 | [# Add a system to this blacklist if it has mmap() and MAP_ANON or | |
301 | # MAP_ANONYMOUS, but using mmap(..., MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) | |
302 | # doesn't give anonymous zeroed pages with the same properties listed | |
303 | # above for use of /dev/zero. | |
304 | # Systems known to be in this category are Windows, VMS, and SCO Unix. | |
305 | case "$host_os" in | |
306 | vms* | cygwin* | pe | mingw* | sco* | udk* ) | |
307 | gcc_cv_func_mmap_anon=no ;; | |
308 | *) | |
309 | gcc_cv_func_mmap_anon=yes;; | |
310 | esac]) | |
311 | fi | |
825b6926 ZW |
312 | fi |
313 | ||
1072ec3f | 314 | if test $gcc_cv_func_mmap_file = yes; then |
56f02b88 ZW |
315 | AC_DEFINE(HAVE_MMAP_FILE, 1, |
316 | [Define if read-only mmap of a plain file works.]) | |
317 | fi | |
1072ec3f ZW |
318 | if test $gcc_cv_func_mmap_dev_zero = yes; then |
319 | AC_DEFINE(HAVE_MMAP_DEV_ZERO, 1, | |
320 | [Define if mmap of /dev/zero works.]) | |
321 | fi | |
322 | if test $gcc_cv_func_mmap_anon = yes; then | |
323 | AC_DEFINE(HAVE_MMAP_ANON, 1, | |
324 | [Define if mmap with MAP_ANON(YMOUS) works.]) | |
325 | fi | |
56f02b88 | 326 | ]) |
09fa0705 ZW |
327 | |
328 | dnl Locate a program and check that its version is acceptable. | |
329 | dnl AC_PROG_CHECK_VER(var, name, version-switch, | |
330 | dnl version-extract-regexp, version-glob) | |
f6db393e | 331 | AC_DEFUN([gcc_AC_CHECK_PROG_VER], |
09fa0705 ZW |
332 | [AC_CHECK_PROG([$1], [$2], [$2]) |
333 | if test -n "[$]$1"; then | |
334 | # Found it, now check the version. | |
335 | AC_CACHE_CHECK(for modern $2, gcc_cv_prog_$2_modern, | |
336 | [changequote(<<,>>)dnl | |
337 | ac_prog_version=`<<$>>$1 $3 2>&1 | | |
338 | sed -n 's/^.*patsubst(<<$4>>,/,\/).*$/\1/p'` | |
05e12634 | 339 | changequote([,])dnl |
09fa0705 | 340 | echo "configure:__oline__: version of $2 is $ac_prog_version" >&AC_FD_CC |
05e12634 | 341 | changequote(<<,>>)dnl |
09fa0705 ZW |
342 | case $ac_prog_version in |
343 | '') gcc_cv_prog_$2_modern=no;; | |
344 | <<$5>>) | |
345 | gcc_cv_prog_$2_modern=yes;; | |
346 | *) gcc_cv_prog_$2_modern=no;; | |
347 | esac | |
348 | changequote([,])dnl | |
349 | ]) | |
350 | else | |
351 | gcc_cv_prog_$2_modern=no | |
352 | fi | |
353 | ]) | |
75e93faa ZW |
354 | |
355 | dnl Determine if enumerated bitfields are unsigned. ISO C says they can | |
356 | dnl be either signed or unsigned. | |
357 | dnl | |
f6db393e | 358 | AC_DEFUN([gcc_AC_C_ENUM_BF_UNSIGNED], |
75e93faa ZW |
359 | [AC_CACHE_CHECK(for unsigned enumerated bitfields, gcc_cv_enum_bf_unsigned, |
360 | [AC_TRY_RUN(#include <stdlib.h> | |
361 | enum t { BLAH = 128 } ; | |
362 | struct s_t { enum t member : 8; } s ; | |
363 | int main(void) | |
364 | { | |
365 | s.member = BLAH; | |
366 | if (s.member < 0) exit(1); | |
367 | exit(0); | |
368 | ||
369 | }, gcc_cv_enum_bf_unsigned=yes, gcc_cv_enum_bf_unsigned=no, gcc_cv_enum_bf_unsigned=yes)]) | |
370 | if test $gcc_cv_enum_bf_unsigned = yes; then | |
371 | AC_DEFINE(ENUM_BITFIELDS_ARE_UNSIGNED, 1, | |
372 | [Define if enumerated bitfields are treated as unsigned values.]) | |
373 | fi]) | |
374 | ||
75e93faa ZW |
375 | dnl Probe number of bits in a byte. |
376 | dnl Note C89 requires CHAR_BIT >= 8. | |
377 | dnl | |
f6db393e | 378 | AC_DEFUN([gcc_AC_C_CHAR_BIT], |
75e93faa ZW |
379 | [AC_CACHE_CHECK(for CHAR_BIT, gcc_cv_decl_char_bit, |
380 | [AC_EGREP_CPP(found, | |
381 | [#ifdef HAVE_LIMITS_H | |
382 | #include <limits.h> | |
383 | #endif | |
384 | #ifdef CHAR_BIT | |
385 | found | |
386 | #endif], gcc_cv_decl_char_bit=yes, gcc_cv_decl_char_bit=no) | |
387 | ]) | |
388 | if test $gcc_cv_decl_char_bit = no; then | |
389 | AC_CACHE_CHECK(number of bits in a byte, gcc_cv_c_nbby, | |
390 | [i=8 | |
391 | gcc_cv_c_nbby= | |
392 | while test $i -lt 65; do | |
393 | AC_TRY_COMPILE(, | |
4e70264f ZW |
394 | [switch(0) { |
395 | case (unsigned char)((unsigned long)1 << $i) == ((unsigned long)1 << $i): | |
396 | case (unsigned char)((unsigned long)1<<($i-1)) == ((unsigned long)1<<($i-1)): | |
397 | ; }], | |
398 | [gcc_cv_c_nbby=$i; break]) | |
75e93faa ZW |
399 | i=`expr $i + 1` |
400 | done | |
401 | test -z "$gcc_cv_c_nbby" && gcc_cv_c_nbby=failed | |
402 | ]) | |
403 | if test $gcc_cv_c_nbby = failed; then | |
404 | AC_MSG_ERROR(cannot determine number of bits in a byte) | |
405 | else | |
406 | AC_DEFINE_UNQUOTED(CHAR_BIT, $gcc_cv_c_nbby, | |
407 | [Define as the number of bits in a byte, if \`limits.h' doesn't.]) | |
408 | fi | |
409 | fi]) | |
410 | ||
411 | dnl Checking for long long. | |
412 | dnl By Caolan McNamara <caolan@skynet.ie> | |
413 | dnl Added check for __int64, Zack Weinberg <zackw@stanford.edu> | |
414 | dnl | |
415 | AC_DEFUN([gcc_AC_C_LONG_LONG], | |
416 | [AC_CACHE_CHECK(for long long int, ac_cv_c_long_long, | |
417 | [AC_TRY_COMPILE(,[long long int i;], | |
418 | ac_cv_c_long_long=yes, | |
419 | ac_cv_c_long_long=no)]) | |
420 | if test $ac_cv_c_long_long = yes; then | |
421 | AC_DEFINE(HAVE_LONG_LONG, 1, | |
422 | [Define if your compiler supports the \`long long' type.]) | |
423 | fi | |
424 | AC_CACHE_CHECK(for __int64, ac_cv_c___int64, | |
425 | [AC_TRY_COMPILE(,[__int64 i;], | |
426 | ac_cv_c___int64=yes, | |
427 | ac_cv_c___int64=no)]) | |
428 | if test $ac_cv_c___int64 = yes; then | |
429 | AC_DEFINE(HAVE___INT64, 1, | |
430 | [Define if your compiler supports the \`__int64' type.]) | |
431 | fi | |
432 | ]) | |
84c041a1 | 433 | |
a03ea89b BM |
434 | dnl From Bruno Haible. |
435 | ||
436 | AC_DEFUN([AM_LANGINFO_CODESET], | |
437 | [ | |
438 | AC_CACHE_CHECK([for nl_langinfo and CODESET], am_cv_langinfo_codeset, | |
439 | [AC_TRY_LINK([#include <langinfo.h>], | |
440 | [char* cs = nl_langinfo(CODESET);], | |
441 | am_cv_langinfo_codeset=yes, | |
442 | am_cv_langinfo_codeset=no) | |
443 | ]) | |
444 | if test $am_cv_langinfo_codeset = yes; then | |
445 | AC_DEFINE(HAVE_LANGINFO_CODESET, 1, | |
446 | [Define if you have <langinfo.h> and nl_langinfo(CODESET).]) | |
447 | fi | |
448 | ]) | |
449 | ||
f6db393e | 450 | AC_DEFUN([gcc_AC_INITFINI_ARRAY], |
eb70d86d AS |
451 | [AC_ARG_ENABLE(initfini-array, |
452 | [ --enable-initfini-array use .init_array/.fini_array sections], | |
453 | [], [ | |
454 | AC_CACHE_CHECK(for .preinit_array/.init_array/.fini_array support, | |
918c4fe4 | 455 | gcc_cv_initfini_array, [dnl |
eb70d86d | 456 | AC_TRY_RUN([ |
07cf4226 DM |
457 | static int x = -1; |
458 | int main (void) { return x; } | |
459 | int foo (void) { x = 0; } | |
eb70d86d | 460 | int (*fp) (void) __attribute__ ((section (".init_array"))) = foo;], |
918c4fe4 AS |
461 | [gcc_cv_initfini_array=yes], [gcc_cv_initfini_array=no], |
462 | [gcc_cv_initfini_array=no])]) | |
eb70d86d AS |
463 | enable_initfini_array=$gcc_cv_initfini_array |
464 | ]) | |
465 | if test $enable_initfini_array = yes; then | |
466 | AC_DEFINE(HAVE_INITFINI_ARRAY, 1, | |
467 | [Define .init_array/.fini_array sections are available and working.]) | |
468 | fi]) | |
ad9c4d9f NN |
469 | |
470 | dnl # _gcc_COMPUTE_GAS_VERSION | |
471 | dnl # Used by gcc_GAS_VERSION_GTE_IFELSE | |
472 | dnl # | |
473 | dnl # WARNING: | |
474 | dnl # gcc_cv_as_gas_srcdir must be defined before this. | |
475 | dnl # This gross requirement will go away eventually. | |
476 | AC_DEFUN([_gcc_COMPUTE_GAS_VERSION], | |
477 | [gcc_cv_as_bfd_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/bfd | |
478 | for f in $gcc_cv_as_bfd_srcdir/configure \ | |
479 | $gcc_cv_as_gas_srcdir/configure \ | |
480 | $gcc_cv_as_gas_srcdir/configure.in \ | |
481 | $gcc_cv_as_gas_srcdir/Makefile.in ; do | |
58ea87a9 | 482 | gcc_cv_gas_version=`sed -n -e 's/^[[ ]]*\(VERSION=[[0-9]]*\.[[0-9]]*.*\)/\1/p' < $f` |
ad9c4d9f NN |
483 | if test x$gcc_cv_gas_version != x; then |
484 | break | |
485 | fi | |
486 | done | |
487 | gcc_cv_gas_major_version=`expr "$gcc_cv_gas_version" : "VERSION=\([[0-9]]*\)"` | |
488 | gcc_cv_gas_minor_version=`expr "$gcc_cv_gas_version" : "VERSION=[[0-9]]*\.\([[0-9]]*\)"` | |
489 | gcc_cv_gas_patch_version=`expr "$gcc_cv_gas_version" : "VERSION=[[0-9]]*\.[[0-9]]*\.\([[0-9]]*\)"` | |
5aaaf0e8 NN |
490 | case $gcc_cv_gas_patch_version in |
491 | "") gcc_cv_gas_patch_version="0" ;; | |
492 | esac | |
8ada417f ZW |
493 | gcc_cv_gas_vers=`expr \( \( $gcc_cv_gas_major_version \* 1000 \) \ |
494 | + $gcc_cv_gas_minor_version \) \* 1000 \ | |
495 | + $gcc_cv_gas_patch_version` | |
ad9c4d9f NN |
496 | ]) []dnl # _gcc_COMPUTE_GAS_VERSION |
497 | ||
8ada417f | 498 | dnl # gcc_GAS_VERSION_GTE_IFELSE([elf,] major, minor, patchlevel, |
ad9c4d9f NN |
499 | dnl # [command_if_true = :], [command_if_false = :]) |
500 | dnl # Check to see if the version of GAS is greater than or | |
501 | dnl # equal to the specified version. | |
502 | dnl # | |
503 | dnl # The first ifelse() shortens the shell code if the patchlevel | |
504 | dnl # is unimportant (the usual case). The others handle missing | |
505 | dnl # commands. Note that the tests are structured so that the most | |
506 | dnl # common version number cases are tested first. | |
8ada417f ZW |
507 | AC_DEFUN([_gcc_GAS_VERSION_GTE_IFELSE], |
508 | [ifelse([$1], elf, | |
509 | [if test $in_tree_gas_is_elf = yes \ | |
510 | &&], | |
511 | [if]) test $gcc_cv_gas_vers -ge `expr \( \( $2 \* 1000 \) + $3 \) \* 1000 + $4` | |
512 | then dnl | |
513 | ifelse([$5],,:,[$5])[]dnl | |
514 | ifelse([$6],,,[ | |
515 | else $6]) | |
516 | fi]) | |
517 | ||
ad9c4d9f | 518 | AC_DEFUN([gcc_GAS_VERSION_GTE_IFELSE], |
8ada417f ZW |
519 | [AC_REQUIRE([_gcc_COMPUTE_GAS_VERSION])dnl |
520 | ifelse([$1], elf, [_gcc_GAS_VERSION_GTE_IFELSE($@)], | |
521 | [_gcc_GAS_VERSION_GTE_IFELSE(,$@)])]) | |
522 | ||
523 | dnl gcc_GAS_CHECK_FEATURE(description, cv, [[elf,]major,minor,patchlevel], | |
524 | dnl [extra switches to as], [assembler input], | |
525 | dnl [extra testing logic], [command if feature available]) | |
526 | dnl | |
527 | dnl Checks for an assembler feature. If we are building an in-tree | |
528 | dnl gas, the feature is available if the associated assembler version | |
529 | dnl is greater than or equal to major.minor.patchlevel. If not, then | |
530 | dnl ASSEMBLER INPUT is fed to the assembler and the feature is available | |
531 | dnl if assembly succeeds. If EXTRA TESTING LOGIC is not the empty string, | |
532 | dnl then it is run instead of simply setting CV to "yes" - it is responsible | |
533 | dnl for doing so, if appropriate. | |
534 | AC_DEFUN([gcc_GAS_CHECK_FEATURE], | |
535 | [AC_CACHE_CHECK([assembler for $1], [$2], | |
536 | [[$2]=no | |
537 | ifelse([$3],,,[dnl | |
538 | if test $in_tree_gas = yes; then | |
539 | gcc_GAS_VERSION_GTE_IFELSE($3, [[$2]=yes]) | |
540 | el])if test x$gcc_cv_as != x; then | |
ba479fd2 | 541 | echo ifelse(m4_substr([$5],0,1),[$], "[$5]", '[$5]') > conftest.s |
8ada417f ZW |
542 | if AC_TRY_COMMAND([$gcc_cv_as $4 -o conftest.o conftest.s >&AC_FD_CC]) |
543 | then | |
544 | ifelse([$6],, [$2]=yes, [$6]) | |
545 | else | |
546 | echo "configure: failed program was" >&AC_FD_CC | |
547 | cat conftest.s >&AC_FD_CC | |
548 | fi | |
549 | rm -f conftest.o conftest.s | |
550 | fi]) | |
551 | ifelse([$7],,,[dnl | |
552 | if test $[$2] = yes; then | |
553 | $7 | |
554 | fi])]) | |
ad9c4d9f | 555 | |
3b620440 KC |
556 | # AM_PROG_CC_C_O |
557 | # -------------- | |
558 | # Like AC_PROG_CC_C_O, but changed for automake. | |
559 | ||
560 | # Copyright (C) 1999, 2000, 2001, 2003 Free Software Foundation, Inc. | |
561 | ||
562 | # This program is free software; you can redistribute it and/or modify | |
563 | # it under the terms of the GNU General Public License as published by | |
564 | # the Free Software Foundation; either version 2, or (at your option) | |
565 | # any later version. | |
566 | ||
567 | # This program is distributed in the hope that it will be useful, | |
568 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
569 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
570 | # GNU General Public License for more details. | |
571 | ||
572 | # You should have received a copy of the GNU General Public License | |
573 | # along with this program; if not, write to the Free Software | |
574 | # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
575 | # 02111-1307, USA. | |
576 | ||
577 | AC_DEFUN([AM_PROG_CC_C_O], | |
578 | [AC_REQUIRE([AC_PROG_CC_C_O])dnl | |
579 | AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl | |
580 | # FIXME: we rely on the cache variable name because | |
581 | # there is no other way. | |
582 | set dummy $CC | |
583 | ac_cc=`echo $[2] | sed ['s/[^a-zA-Z0-9_]/_/g;s/^[0-9]/_/']` | |
584 | if eval "test \"`echo '$ac_cv_prog_cc_'${ac_cc}_c_o`\" != yes"; then | |
585 | # Losing compiler, so override with the script. | |
586 | # FIXME: It is wrong to rewrite CC. | |
587 | # But if we don't then we get into trouble of one sort or another. | |
588 | # A longer-term fix would be to have automake use am__CC in this case, | |
589 | # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)" | |
590 | CC="$am_aux_dir/compile $CC" | |
591 | fi | |
592 | ]) | |
593 | ||
594 | # AM_AUX_DIR_EXPAND | |
595 | ||
596 | # Copyright (C) 2001, 2003 Free Software Foundation, Inc. | |
597 | ||
598 | # This program is free software; you can redistribute it and/or modify | |
599 | # it under the terms of the GNU General Public License as published by | |
600 | # the Free Software Foundation; either version 2, or (at your option) | |
601 | # any later version. | |
602 | ||
603 | # This program is distributed in the hope that it will be useful, | |
604 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
605 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
606 | # GNU General Public License for more details. | |
607 | ||
608 | # You should have received a copy of the GNU General Public License | |
609 | # along with this program; if not, write to the Free Software | |
610 | # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
611 | # 02111-1307, USA. | |
612 | ||
613 | # For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets | |
614 | # $ac_aux_dir to `$srcdir/foo'. In other projects, it is set to | |
615 | # `$srcdir', `$srcdir/..', or `$srcdir/../..'. | |
616 | # | |
617 | # Of course, Automake must honor this variable whenever it calls a | |
618 | # tool from the auxiliary directory. The problem is that $srcdir (and | |
619 | # therefore $ac_aux_dir as well) can be either absolute or relative, | |
620 | # depending on how configure is run. This is pretty annoying, since | |
621 | # it makes $ac_aux_dir quite unusable in subdirectories: in the top | |
622 | # source directory, any form will work fine, but in subdirectories a | |
623 | # relative path needs to be adjusted first. | |
624 | # | |
625 | # $ac_aux_dir/missing | |
626 | # fails when called from a subdirectory if $ac_aux_dir is relative | |
627 | # $top_srcdir/$ac_aux_dir/missing | |
628 | # fails if $ac_aux_dir is absolute, | |
629 | # fails when called from a subdirectory in a VPATH build with | |
630 | # a relative $ac_aux_dir | |
631 | # | |
632 | # The reason of the latter failure is that $top_srcdir and $ac_aux_dir | |
633 | # are both prefixed by $srcdir. In an in-source build this is usually | |
634 | # harmless because $srcdir is `.', but things will broke when you | |
635 | # start a VPATH build or use an absolute $srcdir. | |
636 | # | |
637 | # So we could use something similar to $top_srcdir/$ac_aux_dir/missing, | |
638 | # iff we strip the leading $srcdir from $ac_aux_dir. That would be: | |
639 | # am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"` | |
640 | # and then we would define $MISSING as | |
641 | # MISSING="\${SHELL} $am_aux_dir/missing" | |
642 | # This will work as long as MISSING is not called from configure, because | |
643 | # unfortunately $(top_srcdir) has no meaning in configure. | |
644 | # However there are other variables, like CC, which are often used in | |
645 | # configure, and could therefore not use this "fixed" $ac_aux_dir. | |
646 | # | |
647 | # Another solution, used here, is to always expand $ac_aux_dir to an | |
648 | # absolute PATH. The drawback is that using absolute paths prevent a | |
649 | # configured tree to be moved without reconfiguration. | |
650 | ||
651 | AC_DEFUN([AM_AUX_DIR_EXPAND], | |
652 | [dnl Rely on autoconf to set up CDPATH properly. | |
653 | AC_PREREQ([2.50])dnl | |
654 | # expand $ac_aux_dir to an absolute path | |
655 | am_aux_dir=`cd $ac_aux_dir && pwd` | |
656 | ]) | |
232b67d9 NS |
657 | |
658 | ||
659 | dnl GCC_TARGET_TEMPLATE(KEY) | |
660 | dnl ------------------------ | |
661 | dnl Define KEY as a valid configure key on the target machine. | |
662 | ||
663 | m4_define([GCC_TARGET_TEMPLATE], | |
664 | [m4_define([GCC_TARGET_TEMPLATE($1)],[])]) | |
665 | ||
666 | dnl AH_TEMPLATE(KEY, DESCRIPTION) | |
667 | dnl ----------------------------- | |
668 | dnl Issue an autoheader template for KEY, i.e., a comment composed of | |
669 | dnl DESCRIPTION (properly wrapped), and then #undef KEY. Redefinition | |
670 | dnl of the macro in autoheader.m4, to support definition of only a few | |
671 | dnl keys while compiling target libraries. | |
672 | ||
673 | m4_define([AH_TEMPLATE], | |
674 | [AH_VERBATIM([$1],m4_text_wrap([$2 */], [ ], [/* ]) | |
675 | m4_ifdef([GCC_TARGET_TEMPLATE($1)],[],[#ifndef USED_FOR_TARGET | |
676 | ])[#undef $1]m4_ifdef([GCC_TARGET_TEMPLATE($1)],[],[ | |
677 | #endif | |
678 | ]))]) |