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c906108c SS |
1 | dnl written by Rob Savoye <rob@cygnus.com> for Cygnus Support |
2 | dnl major rewriting for Tcl 7.5 by Don Libes <libes@nist.gov> | |
3 | ||
4 | dnl gdb/configure.in uses BFD_NEED_DECLARATION, so get its definition. | |
85981d60 | 5 | sinclude(../bfd/bfd.m4) |
c906108c | 6 | |
5062cc19 | 7 | dnl This gets the standard macros |
c906108c SS |
8 | sinclude(../config/acinclude.m4) |
9 | ||
fdc59709 PB |
10 | dnl This gets autoconf bugfixes |
11 | sinclude(../config/override.m4) | |
12 | ||
20e95c23 | 13 | sinclude(../config/gettext-sister.m4) |
85981d60 | 14 | |
7fa2210b DJ |
15 | dnl For AC_LIB_HAVE_LINKFLAGS. |
16 | sinclude(../config/lib-ld.m4) | |
17 | sinclude(../config/lib-prefix.m4) | |
18 | sinclude(../config/lib-link.m4) | |
19 | ||
c16158bc JM |
20 | dnl For ACX_PKGVERSION and ACX_BUGURL. |
21 | sinclude(../config/acx.m4) | |
22 | ||
5062cc19 KS |
23 | dnl for TCL definitions |
24 | sinclude(../config/tcl.m4) | |
25 | ||
c906108c SS |
26 | # |
27 | # Sometimes the native compiler is a bogus stub for gcc or /usr/ucb/cc. This | |
28 | # makes configure think it's cross compiling. If --target wasn't used, then | |
29 | # we can't configure, so something is wrong. We don't use the cache | |
30 | # here cause if somebody fixes their compiler install, we want this to work. | |
da78b0e7 | 31 | AC_DEFUN([CY_AC_C_WORKS], |
c906108c SS |
32 | [# If we cannot compile and link a trivial program, we can't expect anything to work |
33 | AC_MSG_CHECKING(whether the compiler ($CC) actually works) | |
34 | AC_TRY_COMPILE(, [/* don't need anything here */], | |
35 | c_compiles=yes, c_compiles=no) | |
36 | ||
37 | AC_TRY_LINK(, [/* don't need anything here */], | |
38 | c_links=yes, c_links=no) | |
39 | ||
40 | if test x"${c_compiles}" = x"no" ; then | |
41 | AC_MSG_ERROR(the native compiler is broken and won't compile.) | |
42 | fi | |
43 | ||
44 | if test x"${c_links}" = x"no" ; then | |
45 | AC_MSG_ERROR(the native compiler is broken and won't link.) | |
46 | fi | |
47 | AC_MSG_RESULT(yes) | |
48 | ]) | |
49 | ||
56157b4a AC |
50 | ## ----------------------------------------- ## |
51 | ## ANSIfy the C compiler whenever possible. ## | |
52 | ## From Franc,ois Pinard ## | |
53 | ## ----------------------------------------- ## | |
54 | ||
5062cc19 | 55 | # Copyright (C) 1996, 1997, 1999, 2000, 2001, 2008 Free Software Foundation, Inc. |
56157b4a AC |
56 | |
57 | # This program is free software; you can redistribute it and/or modify | |
58 | # it under the terms of the GNU General Public License as published by | |
59 | # the Free Software Foundation; either version 2, or (at your option) | |
60 | # any later version. | |
61 | ||
62 | # This program is distributed in the hope that it will be useful, | |
63 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
64 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
65 | # GNU General Public License for more details. | |
66 | ||
67 | # You should have received a copy of the GNU General Public License | |
68 | # along with this program; if not, write to the Free Software | |
197e01b6 EZ |
69 | # Foundation, Inc., 51 Franklin Street, Fifth Floor, |
70 | # Boston, MA 02110-1301, USA. | |
56157b4a AC |
71 | |
72 | # serial 1 | |
73 | ||
74 | # @defmac AC_PROG_CC_STDC | |
75 | # @maindex PROG_CC_STDC | |
76 | # @ovindex CC | |
77 | # If the C compiler in not in ANSI C mode by default, try to add an option | |
78 | # to output variable @code{CC} to make it so. This macro tries various | |
79 | # options that select ANSI C on some system or another. It considers the | |
80 | # compiler to be in ANSI C mode if it handles function prototypes correctly. | |
81 | # | |
82 | # If you use this macro, you should check after calling it whether the C | |
83 | # compiler has been set to accept ANSI C; if not, the shell variable | |
84 | # @code{am_cv_prog_cc_stdc} is set to @samp{no}. If you wrote your source | |
85 | # code in ANSI C, you can make an un-ANSIfied copy of it by using the | |
86 | # program @code{ansi2knr}, which comes with Ghostscript. | |
87 | # @end defmac | |
88 | ||
89 | AC_DEFUN([AM_PROG_CC_STDC], | |
90 | [AC_REQUIRE([AC_PROG_CC]) | |
91 | AC_BEFORE([$0], [AC_C_INLINE]) | |
92 | AC_BEFORE([$0], [AC_C_CONST]) | |
93 | dnl Force this before AC_PROG_CPP. Some cpp's, eg on HPUX, require | |
94 | dnl a magic option to avoid problems with ANSI preprocessor commands | |
95 | dnl like #elif. | |
96 | dnl FIXME: can't do this because then AC_AIX won't work due to a | |
97 | dnl circular dependency. | |
98 | dnl AC_BEFORE([$0], [AC_PROG_CPP]) | |
99 | AC_MSG_CHECKING([for ${CC-cc} option to accept ANSI C]) | |
100 | AC_CACHE_VAL(am_cv_prog_cc_stdc, | |
101 | [am_cv_prog_cc_stdc=no | |
102 | ac_save_CC="$CC" | |
103 | # Don't try gcc -ansi; that turns off useful extensions and | |
104 | # breaks some systems' header files. | |
105 | # AIX -qlanglvl=ansi | |
106 | # Ultrix and OSF/1 -std1 | |
107 | # HP-UX 10.20 and later -Ae | |
108 | # HP-UX older versions -Aa -D_HPUX_SOURCE | |
109 | # SVR4 -Xc -D__EXTENSIONS__ | |
110 | for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__" | |
111 | do | |
112 | CC="$ac_save_CC $ac_arg" | |
113 | AC_TRY_COMPILE( | |
114 | [#include <stdarg.h> | |
115 | #include <stdio.h> | |
116 | #include <sys/types.h> | |
117 | #include <sys/stat.h> | |
118 | /* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */ | |
119 | struct buf { int x; }; | |
120 | FILE * (*rcsopen) (struct buf *, struct stat *, int); | |
121 | static char *e (p, i) | |
122 | char **p; | |
123 | int i; | |
124 | { | |
125 | return p[i]; | |
126 | } | |
127 | static char *f (char * (*g) (char **, int), char **p, ...) | |
128 | { | |
129 | char *s; | |
130 | va_list v; | |
131 | va_start (v,p); | |
132 | s = g (p, va_arg (v,int)); | |
133 | va_end (v); | |
134 | return s; | |
135 | } | |
136 | int test (int i, double x); | |
137 | struct s1 {int (*f) (int a);}; | |
138 | struct s2 {int (*f) (double a);}; | |
139 | int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int); | |
140 | int argc; | |
141 | char **argv; | |
142 | ], [ | |
143 | return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]; | |
144 | ], | |
145 | [am_cv_prog_cc_stdc="$ac_arg"; break]) | |
146 | done | |
147 | CC="$ac_save_CC" | |
148 | ]) | |
149 | if test -z "$am_cv_prog_cc_stdc"; then | |
150 | AC_MSG_RESULT([none needed]) | |
151 | else | |
152 | AC_MSG_RESULT([$am_cv_prog_cc_stdc]) | |
153 | fi | |
154 | case "x$am_cv_prog_cc_stdc" in | |
155 | x|xno) ;; | |
156 | *) CC="$CC $am_cv_prog_cc_stdc" ;; | |
157 | esac | |
158 | ]) | |
234b45d4 KB |
159 | |
160 | dnl From Bruno Haible. | |
161 | ||
162 | AC_DEFUN([AM_ICONV], | |
163 | [ | |
164 | dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and | |
165 | dnl those with the standalone portable GNU libiconv installed). | |
166 | ||
167 | AC_ARG_WITH([libiconv-prefix], | |
168 | [ --with-libiconv-prefix=DIR search for libiconv in DIR/include and DIR/lib], [ | |
169 | for dir in `echo "$withval" | tr : ' '`; do | |
170 | if test -d $dir/include; then CPPFLAGS="$CPPFLAGS -I$dir/include"; fi | |
171 | if test -d $dir/lib; then LDFLAGS="$LDFLAGS -L$dir/lib"; fi | |
172 | done | |
173 | ]) | |
174 | ||
175 | AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [ | |
176 | am_cv_func_iconv="no, consider installing GNU libiconv" | |
177 | am_cv_lib_iconv=no | |
178 | AC_TRY_LINK([#include <stdlib.h> | |
179 | #include <iconv.h>], | |
180 | [iconv_t cd = iconv_open("",""); | |
181 | iconv(cd,NULL,NULL,NULL,NULL); | |
182 | iconv_close(cd);], | |
183 | am_cv_func_iconv=yes) | |
184 | if test "$am_cv_func_iconv" != yes; then | |
185 | am_save_LIBS="$LIBS" | |
186 | LIBS="$LIBS -liconv" | |
187 | AC_TRY_LINK([#include <stdlib.h> | |
188 | #include <iconv.h>], | |
189 | [iconv_t cd = iconv_open("",""); | |
190 | iconv(cd,NULL,NULL,NULL,NULL); | |
191 | iconv_close(cd);], | |
192 | am_cv_lib_iconv=yes | |
193 | am_cv_func_iconv=yes) | |
194 | LIBS="$am_save_LIBS" | |
195 | fi | |
196 | ]) | |
197 | if test "$am_cv_func_iconv" = yes; then | |
198 | AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.]) | |
199 | AC_MSG_CHECKING([for iconv declaration]) | |
200 | AC_CACHE_VAL(am_cv_proto_iconv, [ | |
201 | AC_TRY_COMPILE([ | |
202 | #include <stdlib.h> | |
203 | #include <iconv.h> | |
204 | extern | |
205 | #ifdef __cplusplus | |
206 | "C" | |
207 | #endif | |
208 | #if defined(__STDC__) || defined(__cplusplus) | |
209 | size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft); | |
210 | #else | |
211 | size_t iconv(); | |
212 | #endif | |
213 | ], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const") | |
214 | am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"]) | |
215 | am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'` | |
216 | AC_MSG_RESULT([$]{ac_t:- | |
217 | }[$]am_cv_proto_iconv) | |
218 | AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1, | |
219 | [Define as const if the declaration of iconv() needs const.]) | |
220 | fi | |
221 | LIBICONV= | |
222 | if test "$am_cv_lib_iconv" = yes; then | |
223 | LIBICONV="-liconv" | |
224 | fi | |
225 | AC_SUBST(LIBICONV) | |
226 | ]) | |
14abd0fb | 227 | |
5b5d99cf JB |
228 | dnl written by Guido Draheim <guidod@gmx.de>, original by Alexandre Oliva |
229 | dnl Version 1.3 (2001/03/02) | |
230 | dnl source http://www.gnu.org/software/ac-archive/Miscellaneous/ac_define_dir.html | |
231 | ||
232 | AC_DEFUN([AC_DEFINE_DIR], [ | |
233 | test "x$prefix" = xNONE && prefix="$ac_default_prefix" | |
234 | test "x$exec_prefix" = xNONE && exec_prefix='${prefix}' | |
235 | ac_define_dir=`eval echo [$]$2` | |
236 | ac_define_dir=`eval echo [$]ac_define_dir` | |
237 | ifelse($3, , | |
238 | AC_DEFINE_UNQUOTED($1, "$ac_define_dir"), | |
239 | AC_DEFINE_UNQUOTED($1, "$ac_define_dir", $3)) | |
240 | ]) | |
241 | ||
b9362cc7 AC |
242 | dnl See whether we need a declaration for a function. |
243 | dnl The result is highly dependent on the INCLUDES passed in, so make sure | |
244 | dnl to use a different cache variable name in this macro if it is invoked | |
245 | dnl in a different context somewhere else. | |
246 | dnl gcc_AC_CHECK_DECL(SYMBOL, | |
247 | dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, INCLUDES]]]) | |
da78b0e7 | 248 | AC_DEFUN([gcc_AC_CHECK_DECL], |
b9362cc7 AC |
249 | [AC_MSG_CHECKING([whether $1 is declared]) |
250 | AC_CACHE_VAL(gcc_cv_have_decl_$1, | |
251 | [AC_TRY_COMPILE([$4], | |
252 | [#ifndef $1 | |
253 | char *(*pfn) = (char *(*)) $1 ; | |
254 | #endif], eval "gcc_cv_have_decl_$1=yes", eval "gcc_cv_have_decl_$1=no")]) | |
255 | if eval "test \"`echo '$gcc_cv_have_decl_'$1`\" = yes"; then | |
256 | AC_MSG_RESULT(yes) ; ifelse([$2], , :, [$2]) | |
257 | else | |
258 | AC_MSG_RESULT(no) ; ifelse([$3], , :, [$3]) | |
259 | fi | |
260 | ])dnl | |
261 | ||
262 | dnl Check multiple functions to see whether each needs a declaration. | |
263 | dnl Arrange to define HAVE_DECL_<FUNCTION> to 0 or 1 as appropriate. | |
264 | dnl gcc_AC_CHECK_DECLS(SYMBOLS, | |
265 | dnl [ACTION-IF-NEEDED [, ACTION-IF-NOT-NEEDED [, INCLUDES]]]) | |
da78b0e7 | 266 | AC_DEFUN([gcc_AC_CHECK_DECLS], |
b9362cc7 AC |
267 | [for ac_func in $1 |
268 | do | |
269 | changequote(, )dnl | |
270 | ac_tr_decl=HAVE_DECL_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` | |
271 | changequote([, ])dnl | |
272 | gcc_AC_CHECK_DECL($ac_func, | |
273 | [AC_DEFINE_UNQUOTED($ac_tr_decl, 1) $2], | |
274 | [AC_DEFINE_UNQUOTED($ac_tr_decl, 0) $3], | |
275 | dnl It is possible that the include files passed in here are local headers | |
276 | dnl which supply a backup declaration for the relevant prototype based on | |
277 | dnl the definition of (or lack of) the HAVE_DECL_ macro. If so, this test | |
278 | dnl will always return success. E.g. see libiberty.h's handling of | |
279 | dnl `basename'. To avoid this, we define the relevant HAVE_DECL_ macro to | |
280 | dnl 1 so that any local headers used do not provide their own prototype | |
281 | dnl during this test. | |
282 | #undef $ac_tr_decl | |
283 | #define $ac_tr_decl 1 | |
284 | $4 | |
285 | ) | |
286 | done | |
287 | dnl Automatically generate config.h entries via autoheader. | |
288 | if test x = y ; then | |
289 | patsubst(translit([$1], [a-z], [A-Z]), [\w+], | |
290 | [AC_DEFINE([HAVE_DECL_\&], 1, | |
291 | [Define to 1 if we found this declaration otherwise define to 0.])])dnl | |
292 | fi | |
293 | ]) | |
294 | ||
5062cc19 KS |
295 | dnl Find the location of the private Tcl headers |
296 | dnl When Tcl is installed, this is TCL_INCLUDE_SPEC/tcl-private/generic | |
297 | dnl When Tcl is in the build tree, this is not needed. | |
298 | dnl | |
299 | dnl Note: you must use first use SC_LOAD_TCLCONFIG! | |
300 | AC_DEFUN([CY_AC_TCL_PRIVATE_HEADERS], [ | |
301 | AC_MSG_CHECKING([for Tcl private headers]) | |
302 | private_dir="" | |
303 | dir=`echo ${TCL_INCLUDE_SPEC}/tcl-private/generic | sed -e s/-I//` | |
304 | if test -f ${dir}/tclInt.h ; then | |
305 | private_dir=${dir} | |
306 | fi | |
307 | ||
308 | if test x"${private_dir}" = x; then | |
309 | AC_ERROR(could not find private Tcl headers) | |
310 | else | |
311 | TCL_PRIVATE_INCLUDE="-I${private_dir}" | |
312 | AC_MSG_RESULT(${private_dir}) | |
313 | fi | |
314 | ]) | |
315 | ||
316 | dnl Find the location of the private Tk headers | |
317 | dnl When Tk is installed, this is TK_INCLUDE_SPEC/tk-private/generic | |
318 | dnl When Tk is in the build tree, this not needed. | |
319 | dnl | |
320 | dnl Note: you must first use SC_LOAD_TKCONFIG | |
321 | AC_DEFUN([CY_AC_TK_PRIVATE_HEADERS], [ | |
322 | AC_MSG_CHECKING([for Tk private headers]) | |
323 | private_dir="" | |
324 | dir=`echo ${TK_INCLUDE_SPEC}/tk-private/generic | sed -e s/-I//` | |
325 | if test -f ${dir}/tkInt.h; then | |
326 | private_dir=${dir} | |
327 | fi | |
328 | ||
329 | if test x"${private_dir}" = x; then | |
330 | AC_ERROR(could not find Tk private headers) | |
331 | else | |
332 | TK_PRIVATE_INCLUDE="-I${private_dir}" | |
333 | AC_MSG_RESULT(${private_dir}) | |
334 | fi | |
335 | ]) |