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])
30 # Sometimes the native compiler is a bogus stub for gcc or /usr/ucb/cc. This
31 # makes configure think it's cross compiling. If --target wasn't used, then
32 # we can't configure, so something is wrong. We don't use the cache
33 # here cause if somebody fixes their compiler install, we want this to work.
34 AC_DEFUN([CY_AC_C_WORKS],
35 [# If we cannot compile and link a trivial program, we can't expect anything to work
36 AC_MSG_CHECKING(whether the compiler ($CC) actually works)
37 AC_TRY_COMPILE(, [/* don't need anything here */],
38 c_compiles=yes, c_compiles=no)
40 AC_TRY_LINK(, [/* don't need anything here */],
41 c_links=yes, c_links=no)
43 if test x"${c_compiles}" = x"no" ; then
44 AC_MSG_ERROR(the native compiler is broken and won't compile.)
47 if test x"${c_links}" = x"no" ; then
48 AC_MSG_ERROR(the native compiler is broken and won't link.)
53 ## ----------------------------------------- ##
54 ## ANSIfy the C compiler whenever possible. ##
55 ## From Franc,ois Pinard ##
56 ## ----------------------------------------- ##
58 # Copyright (C) 1996, 1997, 1999, 2000, 2001, 2008 Free Software Foundation, Inc.
60 # This program is free software; you can redistribute it and/or modify
61 # it under the terms of the GNU General Public License as published by
62 # the Free Software Foundation; either version 2, or (at your option)
65 # This program is distributed in the hope that it will be useful,
66 # but WITHOUT ANY WARRANTY; without even the implied warranty of
67 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
68 # GNU General Public License for more details.
70 # You should have received a copy of the GNU General Public License
71 # along with this program; if not, write to the Free Software
72 # Foundation, Inc., 51 Franklin Street, Fifth Floor,
73 # Boston, MA 02110-1301, USA.
77 # @defmac AC_PROG_CC_STDC
78 # @maindex PROG_CC_STDC
80 # If the C compiler in not in ANSI C mode by default, try to add an option
81 # to output variable @code{CC} to make it so. This macro tries various
82 # options that select ANSI C on some system or another. It considers the
83 # compiler to be in ANSI C mode if it handles function prototypes correctly.
85 # If you use this macro, you should check after calling it whether the C
86 # compiler has been set to accept ANSI C; if not, the shell variable
87 # @code{am_cv_prog_cc_stdc} is set to @samp{no}. If you wrote your source
88 # code in ANSI C, you can make an un-ANSIfied copy of it by using the
89 # program @code{ansi2knr}, which comes with Ghostscript.
92 AC_DEFUN([AM_PROG_CC_STDC],
93 [AC_REQUIRE([AC_PROG_CC])
94 AC_BEFORE([$0], [AC_C_INLINE])
95 AC_BEFORE([$0], [AC_C_CONST])
96 dnl Force this before AC_PROG_CPP. Some cpp's, eg on HPUX, require
97 dnl a magic option to avoid problems with ANSI preprocessor commands
99 dnl FIXME: can't do this because then AC_AIX won't work due to a
100 dnl circular dependency.
101 dnl AC_BEFORE([$0], [AC_PROG_CPP])
102 AC_MSG_CHECKING([for ${CC-cc} option to accept ANSI C])
103 AC_CACHE_VAL(am_cv_prog_cc_stdc,
104 [am_cv_prog_cc_stdc=no
106 # Don't try gcc -ansi; that turns off useful extensions and
107 # breaks some systems' header files.
109 # Ultrix and OSF/1 -std1
110 # HP-UX 10.20 and later -Ae
111 # HP-UX older versions -Aa -D_HPUX_SOURCE
112 # SVR4 -Xc -D__EXTENSIONS__
113 for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
115 CC="$ac_save_CC $ac_arg"
119 #include <sys/types.h>
120 #include <sys/stat.h>
121 /* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */
122 struct buf { int x; };
123 FILE * (*rcsopen) (struct buf *, struct stat *, int);
124 static char *e (p, i)
130 static char *f (char * (*g) (char **, int), char **p, ...)
135 s = g (p, va_arg (v,int));
139 int test (int i, double x);
140 struct s1 {int (*f) (int a);};
141 struct s2 {int (*f) (double a);};
142 int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
146 return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1];
148 [am_cv_prog_cc_stdc="$ac_arg"; break])
152 if test -z "$am_cv_prog_cc_stdc"; then
153 AC_MSG_RESULT([none needed])
155 AC_MSG_RESULT([$am_cv_prog_cc_stdc])
157 case "x$am_cv_prog_cc_stdc" in
159 *) CC="$CC $am_cv_prog_cc_stdc" ;;
163 dnl From Bruno Haible.
167 dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and
168 dnl those with the standalone portable GNU libiconv installed).
170 AC_ARG_WITH([libiconv-prefix],
171 [ --with-libiconv-prefix=DIR search for libiconv in DIR/include and DIR/lib], [
172 for dir in `echo "$withval" | tr : ' '`; do
173 if test -d $dir/include; then CPPFLAGS="$CPPFLAGS -I$dir/include"; fi
174 if test -d $dir/lib; then LDFLAGS="$LDFLAGS -L$dir/lib"; fi
178 AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [
179 am_cv_func_iconv="no, consider installing GNU libiconv"
181 AC_TRY_LINK([#include <stdlib.h>
183 [iconv_t cd = iconv_open("","");
184 iconv(cd,NULL,NULL,NULL,NULL);
186 am_cv_func_iconv=yes)
187 if test "$am_cv_func_iconv" != yes; then
190 AC_TRY_LINK([#include <stdlib.h>
192 [iconv_t cd = iconv_open("","");
193 iconv(cd,NULL,NULL,NULL,NULL);
196 am_cv_func_iconv=yes)
200 if test "$am_cv_func_iconv" = yes; then
201 AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
202 AC_MSG_CHECKING([for iconv declaration])
203 AC_CACHE_VAL(am_cv_proto_iconv, [
211 #if defined(__STDC__) || defined(__cplusplus)
212 size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
216 ], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const")
217 am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"])
218 am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
219 AC_MSG_RESULT([$]{ac_t:-
220 }[$]am_cv_proto_iconv)
221 AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1,
222 [Define as const if the declaration of iconv() needs const.])
225 if test "$am_cv_lib_iconv" = yes; then
231 dnl written by Guido Draheim <guidod@gmx.de>, original by Alexandre Oliva
232 dnl Version 1.3 (2001/03/02)
233 dnl source http://www.gnu.org/software/ac-archive/Miscellaneous/ac_define_dir.html
235 AC_DEFUN([AC_DEFINE_DIR], [
236 test "x$prefix" = xNONE && prefix="$ac_default_prefix"
237 test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
238 ac_define_dir=`eval echo [$]$2`
239 ac_define_dir=`eval echo [$]ac_define_dir`
241 AC_DEFINE_UNQUOTED($1, "$ac_define_dir"),
242 AC_DEFINE_UNQUOTED($1, "$ac_define_dir", $3))
245 dnl See whether we need a declaration for a function.
246 dnl The result is highly dependent on the INCLUDES passed in, so make sure
247 dnl to use a different cache variable name in this macro if it is invoked
248 dnl in a different context somewhere else.
249 dnl gcc_AC_CHECK_DECL(SYMBOL,
250 dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, INCLUDES]]])
251 AC_DEFUN([gcc_AC_CHECK_DECL],
252 [AC_MSG_CHECKING([whether $1 is declared])
253 AC_CACHE_VAL(gcc_cv_have_decl_$1,
254 [AC_TRY_COMPILE([$4],
256 char *(*pfn) = (char *(*)) $1 ;
257 #endif], eval "gcc_cv_have_decl_$1=yes", eval "gcc_cv_have_decl_$1=no")])
258 if eval "test \"`echo '$gcc_cv_have_decl_'$1`\" = yes"; then
259 AC_MSG_RESULT(yes) ; ifelse([$2], , :, [$2])
261 AC_MSG_RESULT(no) ; ifelse([$3], , :, [$3])
265 dnl Check multiple functions to see whether each needs a declaration.
266 dnl Arrange to define HAVE_DECL_<FUNCTION> to 0 or 1 as appropriate.
267 dnl gcc_AC_CHECK_DECLS(SYMBOLS,
268 dnl [ACTION-IF-NEEDED [, ACTION-IF-NOT-NEEDED [, INCLUDES]]])
269 AC_DEFUN([gcc_AC_CHECK_DECLS],
273 ac_tr_decl=HAVE_DECL_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
275 gcc_AC_CHECK_DECL($ac_func,
276 [AC_DEFINE_UNQUOTED($ac_tr_decl, 1) $2],
277 [AC_DEFINE_UNQUOTED($ac_tr_decl, 0) $3],
278 dnl It is possible that the include files passed in here are local headers
279 dnl which supply a backup declaration for the relevant prototype based on
280 dnl the definition of (or lack of) the HAVE_DECL_ macro. If so, this test
281 dnl will always return success. E.g. see libiberty.h's handling of
282 dnl `basename'. To avoid this, we define the relevant HAVE_DECL_ macro to
283 dnl 1 so that any local headers used do not provide their own prototype
284 dnl during this test.
286 #define $ac_tr_decl 1
290 dnl Automatically generate config.h entries via autoheader.
292 patsubst(translit([$1], [a-z], [A-Z]), [\w+],
293 [AC_DEFINE([HAVE_DECL_\&], 1,
294 [Define to 1 if we found this declaration otherwise define to 0.])])dnl
298 dnl Find the location of the private Tcl headers
299 dnl When Tcl is installed, this is TCL_INCLUDE_SPEC/tcl-private/generic
300 dnl When Tcl is in the build tree, this is not needed.
302 dnl Note: you must use first use SC_LOAD_TCLCONFIG!
303 AC_DEFUN([CY_AC_TCL_PRIVATE_HEADERS], [
304 AC_MSG_CHECKING([for Tcl private headers])
306 dir=`echo ${TCL_INCLUDE_SPEC}/tcl-private/generic | sed -e s/-I//`
307 if test -f ${dir}/tclInt.h ; then
311 if test x"${private_dir}" = x; then
312 AC_ERROR(could not find private Tcl headers)
314 TCL_PRIVATE_INCLUDE="-I${private_dir}"
315 AC_MSG_RESULT(${private_dir})
319 dnl Find the location of the private Tk headers
320 dnl When Tk is installed, this is TK_INCLUDE_SPEC/tk-private/generic
321 dnl When Tk is in the build tree, this not needed.
323 dnl Note: you must first use SC_LOAD_TKCONFIG
324 AC_DEFUN([CY_AC_TK_PRIVATE_HEADERS], [
325 AC_MSG_CHECKING([for Tk private headers])
327 dir=`echo ${TK_INCLUDE_SPEC}/tk-private/generic | sed -e s/-I//`
328 if test -f ${dir}/tkInt.h; then
332 if test x"${private_dir}" = x; then
333 AC_ERROR(could not find Tk private headers)
335 TK_PRIVATE_INCLUDE="-I${private_dir}"
336 AC_MSG_RESULT(${private_dir})