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>
4 dnl gdb/configure.in uses BFD_NEED_DECLARATION, so get its definition.
5 sinclude(../bfd/bfd.m4)
7 dnl This gets the standard macros
8 sinclude(../config/acinclude.m4)
10 dnl This gets autoconf bugfixes
11 sinclude(../config/override.m4)
13 sinclude(../config/gettext-sister.m4)
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)
20 dnl For ACX_PKGVERSION and ACX_BUGURL.
21 sinclude(../config/acx.m4)
23 dnl for TCL definitions
24 sinclude(../config/tcl.m4)
26 dnl For dependency tracking macros.
27 sinclude([../config/depstand.m4])
29 dnl For AM_LC_MESSAGES
30 sinclude([../config/lcmessage.m4])
32 dnl For AM_LANGINFO_CODESET.
33 sinclude([../config/codeset.m4])
36 # Sometimes the native compiler is a bogus stub for gcc or /usr/ucb/cc. This
37 # makes configure think it's cross compiling. If --target wasn't used, then
38 # we can't configure, so something is wrong. We don't use the cache
39 # here cause if somebody fixes their compiler install, we want this to work.
40 AC_DEFUN([CY_AC_C_WORKS],
41 [# If we cannot compile and link a trivial program, we can't expect anything to work
42 AC_MSG_CHECKING(whether the compiler ($CC) actually works)
43 AC_TRY_COMPILE(, [/* don't need anything here */],
44 c_compiles=yes, c_compiles=no)
46 AC_TRY_LINK(, [/* don't need anything here */],
47 c_links=yes, c_links=no)
49 if test x"${c_compiles}" = x"no" ; then
50 AC_MSG_ERROR(the native compiler is broken and won't compile.)
53 if test x"${c_links}" = x"no" ; then
54 AC_MSG_ERROR(the native compiler is broken and won't link.)
59 ## ----------------------------------------- ##
60 ## ANSIfy the C compiler whenever possible. ##
61 ## From Franc,ois Pinard ##
62 ## ----------------------------------------- ##
64 # Copyright (C) 1996, 1997, 1999, 2000, 2001, 2008, 2009
65 Free Software Foundation, Inc.
67 # This program is free software; you can redistribute it and/or modify
68 # it under the terms of the GNU General Public License as published by
69 # the Free Software Foundation; either version 2, or (at your option)
72 # This program is distributed in the hope that it will be useful,
73 # but WITHOUT ANY WARRANTY; without even the implied warranty of
74 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
75 # GNU General Public License for more details.
77 # You should have received a copy of the GNU General Public License
78 # along with this program; if not, write to the Free Software
79 # Foundation, Inc., 51 Franklin Street, Fifth Floor,
80 # Boston, MA 02110-1301, USA.
84 # @defmac AC_PROG_CC_STDC
85 # @maindex PROG_CC_STDC
87 # If the C compiler in not in ANSI C mode by default, try to add an option
88 # to output variable @code{CC} to make it so. This macro tries various
89 # options that select ANSI C on some system or another. It considers the
90 # compiler to be in ANSI C mode if it handles function prototypes correctly.
92 # If you use this macro, you should check after calling it whether the C
93 # compiler has been set to accept ANSI C; if not, the shell variable
94 # @code{am_cv_prog_cc_stdc} is set to @samp{no}. If you wrote your source
95 # code in ANSI C, you can make an un-ANSIfied copy of it by using the
96 # program @code{ansi2knr}, which comes with Ghostscript.
99 AC_DEFUN([AM_PROG_CC_STDC],
100 [AC_REQUIRE([AC_PROG_CC])
101 AC_BEFORE([$0], [AC_C_INLINE])
102 AC_BEFORE([$0], [AC_C_CONST])
103 dnl Force this before AC_PROG_CPP. Some cpp's, eg on HPUX, require
104 dnl a magic option to avoid problems with ANSI preprocessor commands
106 dnl FIXME: can't do this because then AC_AIX won't work due to a
107 dnl circular dependency.
108 dnl AC_BEFORE([$0], [AC_PROG_CPP])
109 AC_MSG_CHECKING([for ${CC-cc} option to accept ANSI C])
110 AC_CACHE_VAL(am_cv_prog_cc_stdc,
111 [am_cv_prog_cc_stdc=no
113 # Don't try gcc -ansi; that turns off useful extensions and
114 # breaks some systems' header files.
116 # Ultrix and OSF/1 -std1
117 # HP-UX 10.20 and later -Ae
118 # HP-UX older versions -Aa -D_HPUX_SOURCE
119 # SVR4 -Xc -D__EXTENSIONS__
120 for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
122 CC="$ac_save_CC $ac_arg"
126 #include <sys/types.h>
127 #include <sys/stat.h>
128 /* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */
129 struct buf { int x; };
130 FILE * (*rcsopen) (struct buf *, struct stat *, int);
131 static char *e (p, i)
137 static char *f (char * (*g) (char **, int), char **p, ...)
142 s = g (p, va_arg (v,int));
146 int test (int i, double x);
147 struct s1 {int (*f) (int a);};
148 struct s2 {int (*f) (double a);};
149 int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
153 return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1];
155 [am_cv_prog_cc_stdc="$ac_arg"; break])
159 if test -z "$am_cv_prog_cc_stdc"; then
160 AC_MSG_RESULT([none needed])
162 AC_MSG_RESULT([$am_cv_prog_cc_stdc])
164 case "x$am_cv_prog_cc_stdc" in
166 *) CC="$CC $am_cv_prog_cc_stdc" ;;
170 dnl From Bruno Haible.
174 dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and
175 dnl those with the standalone portable GNU libiconv installed).
177 AC_ARG_WITH([libiconv-prefix],
178 [ --with-libiconv-prefix=DIR search for libiconv in DIR/include and DIR/lib], [
179 for dir in `echo "$withval" | tr : ' '`; do
180 if test -d $dir/include; then LIBICONV_INCLUDE="-I$dir/include"; CPPFLAGS="$CPPFLAGS -I$dir/include"; fi
181 if test -d $dir/lib; then LIBICONV_LIBDIR="-L$dir/lib"; LDFLAGS="$LDFLAGS -L$dir/lib"; fi
185 BUILD_LIBICONV_LIBDIR="-L../libiconv/lib/.libs -L../libiconv/lib/_libs"
186 BUILD_LIBICONV_INCLUDE="-I../libiconv/include"
188 AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [
189 am_cv_func_iconv="no, consider installing GNU libiconv"
191 am_cv_use_build_libiconv=no
192 AC_TRY_LINK([#include <stdlib.h>
194 [iconv_t cd = iconv_open("","");
195 iconv(cd,NULL,NULL,NULL,NULL);
197 am_cv_func_iconv=yes)
198 if test "$am_cv_func_iconv" != yes; then
201 AC_TRY_LINK([#include <stdlib.h>
203 [iconv_t cd = iconv_open("","");
204 iconv(cd,NULL,NULL,NULL,NULL);
207 am_cv_func_iconv=yes)
210 # Look for libiconv in the build tree.
211 if test "$am_cv_func_iconv" != yes && test -d ../libiconv; then
213 am_save_CPPFLAGS="$CPPFLAGS"
214 LIBS="$LIBS $BUILD_LIBICONV_LIBDIR -liconv"
215 CPPFLAGS="$CPPFLAGS $BUILD_LIBICONV_INCLUDE"
216 AC_TRY_LINK([#include <stdlib.h>
218 [iconv_t cd = iconv_open("","");
219 iconv(cd,NULL,NULL,NULL,NULL);
222 am_cv_func_iconv=yes)
224 CPPFLAGS="$am_save_CPPFLAGS"
228 if test "$am_cv_lib_iconv" = yes; then
231 if test "$am_cv_use_build_libiconv" = yes; then
232 LIBICONV_LIBDIR="$BUILD_LIBICONV_LIBDIR"
233 LIBICONV_INCLUDE="$BUILD_LIBICONV_INCLUDE"
235 CPPFLAGS="$CPPFLAGS $LIBICONV_INCLUDE"
236 LIBS="$LIBS $LIBICONV_LIBDIR $LIBICONV"
237 if test "$am_cv_func_iconv" = yes; then
238 AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
239 AC_MSG_CHECKING([for iconv declaration])
240 AC_CACHE_VAL(am_cv_proto_iconv, [
248 #if defined(__STDC__) || defined(__cplusplus)
249 size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
253 ], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const")
254 am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"])
255 am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
256 AC_MSG_RESULT([$]{ac_t:-
257 }[$]am_cv_proto_iconv)
258 AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1,
259 [Define as const if the declaration of iconv() needs const.])
263 dnl written by Guido Draheim <guidod@gmx.de>, original by Alexandre Oliva
264 dnl Version 1.3 (2001/03/02)
265 dnl source http://www.gnu.org/software/ac-archive/Miscellaneous/ac_define_dir.html
267 AC_DEFUN([AC_DEFINE_DIR], [
268 test "x$prefix" = xNONE && prefix="$ac_default_prefix"
269 test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
270 ac_define_dir=`eval echo [$]$2`
271 ac_define_dir=`eval echo [$]ac_define_dir`
273 AC_DEFINE_UNQUOTED($1, "$ac_define_dir"),
274 AC_DEFINE_UNQUOTED($1, "$ac_define_dir", $3))
277 dnl See whether we need a declaration for a function.
278 dnl The result is highly dependent on the INCLUDES passed in, so make sure
279 dnl to use a different cache variable name in this macro if it is invoked
280 dnl in a different context somewhere else.
281 dnl gcc_AC_CHECK_DECL(SYMBOL,
282 dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, INCLUDES]]])
283 AC_DEFUN([gcc_AC_CHECK_DECL],
284 [AC_MSG_CHECKING([whether $1 is declared])
285 AC_CACHE_VAL(gcc_cv_have_decl_$1,
286 [AC_TRY_COMPILE([$4],
288 char *(*pfn) = (char *(*)) $1 ;
289 #endif], eval "gcc_cv_have_decl_$1=yes", eval "gcc_cv_have_decl_$1=no")])
290 if eval "test \"`echo '$gcc_cv_have_decl_'$1`\" = yes"; then
291 AC_MSG_RESULT(yes) ; ifelse([$2], , :, [$2])
293 AC_MSG_RESULT(no) ; ifelse([$3], , :, [$3])
297 dnl Check multiple functions to see whether each needs a declaration.
298 dnl Arrange to define HAVE_DECL_<FUNCTION> to 0 or 1 as appropriate.
299 dnl gcc_AC_CHECK_DECLS(SYMBOLS,
300 dnl [ACTION-IF-NEEDED [, ACTION-IF-NOT-NEEDED [, INCLUDES]]])
301 AC_DEFUN([gcc_AC_CHECK_DECLS],
305 ac_tr_decl=HAVE_DECL_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
307 gcc_AC_CHECK_DECL($ac_func,
308 [AC_DEFINE_UNQUOTED($ac_tr_decl, 1) $2],
309 [AC_DEFINE_UNQUOTED($ac_tr_decl, 0) $3],
310 dnl It is possible that the include files passed in here are local headers
311 dnl which supply a backup declaration for the relevant prototype based on
312 dnl the definition of (or lack of) the HAVE_DECL_ macro. If so, this test
313 dnl will always return success. E.g. see libiberty.h's handling of
314 dnl `basename'. To avoid this, we define the relevant HAVE_DECL_ macro to
315 dnl 1 so that any local headers used do not provide their own prototype
316 dnl during this test.
318 #define $ac_tr_decl 1
322 dnl Automatically generate config.h entries via autoheader.
324 patsubst(translit([$1], [a-z], [A-Z]), [\w+],
325 [AC_DEFINE([HAVE_DECL_\&], 1,
326 [Define to 1 if we found this declaration otherwise define to 0.])])dnl
330 dnl Find the location of the private Tcl headers
331 dnl When Tcl is installed, this is TCL_INCLUDE_SPEC/tcl-private/generic
332 dnl When Tcl is in the build tree, this is not needed.
334 dnl Note: you must use first use SC_LOAD_TCLCONFIG!
335 AC_DEFUN([CY_AC_TCL_PRIVATE_HEADERS], [
336 AC_MSG_CHECKING([for Tcl private headers])
338 dir=`echo ${TCL_INCLUDE_SPEC}/tcl-private/generic | sed -e s/-I//`
339 if test -f ${dir}/tclInt.h ; then
343 if test x"${private_dir}" = x; then
344 AC_ERROR(could not find private Tcl headers)
346 TCL_PRIVATE_INCLUDE="-I${private_dir}"
347 AC_MSG_RESULT(${private_dir})
351 dnl Find the location of the private Tk headers
352 dnl When Tk is installed, this is TK_INCLUDE_SPEC/tk-private/generic
353 dnl When Tk is in the build tree, this not needed.
355 dnl Note: you must first use SC_LOAD_TKCONFIG
356 AC_DEFUN([CY_AC_TK_PRIVATE_HEADERS], [
357 AC_MSG_CHECKING([for Tk private headers])
359 dir=`echo ${TK_INCLUDE_SPEC}/tk-private/generic | sed -e s/-I//`
360 if test -f ${dir}/tkInt.h; then
364 if test x"${private_dir}" = x; then
365 AC_ERROR(could not find Tk private headers)
367 TK_PRIVATE_INCLUDE="-I${private_dir}"
368 AC_MSG_RESULT(${private_dir})