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])
35 sinclude([../config/zlib.m4])
38 # Sometimes the native compiler is a bogus stub for gcc or /usr/ucb/cc. This
39 # makes configure think it's cross compiling. If --target wasn't used, then
40 # we can't configure, so something is wrong. We don't use the cache
41 # here cause if somebody fixes their compiler install, we want this to work.
42 AC_DEFUN([CY_AC_C_WORKS],
43 [# If we cannot compile and link a trivial program, we can't expect anything to work
44 AC_MSG_CHECKING(whether the compiler ($CC) actually works)
45 AC_TRY_COMPILE(, [/* don't need anything here */],
46 c_compiles=yes, c_compiles=no)
48 AC_TRY_LINK(, [/* don't need anything here */],
49 c_links=yes, c_links=no)
51 if test x"${c_compiles}" = x"no" ; then
52 AC_MSG_ERROR(the native compiler is broken and won't compile.)
55 if test x"${c_links}" = x"no" ; then
56 AC_MSG_ERROR(the native compiler is broken and won't link.)
61 ## ----------------------------------------- ##
62 ## ANSIfy the C compiler whenever possible. ##
63 ## From Franc,ois Pinard ##
64 ## ----------------------------------------- ##
66 # Copyright (C) 1996, 1997, 1999, 2000, 2001, 2008, 2009
67 Free Software Foundation, Inc.
69 # This program is free software; you can redistribute it and/or modify
70 # it under the terms of the GNU General Public License as published by
71 # the Free Software Foundation; either version 2, or (at your option)
74 # This program is distributed in the hope that it will be useful,
75 # but WITHOUT ANY WARRANTY; without even the implied warranty of
76 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
77 # GNU General Public License for more details.
79 # You should have received a copy of the GNU General Public License
80 # along with this program; if not, write to the Free Software
81 # Foundation, Inc., 51 Franklin Street, Fifth Floor,
82 # Boston, MA 02110-1301, USA.
86 # @defmac AC_PROG_CC_STDC
87 # @maindex PROG_CC_STDC
89 # If the C compiler in not in ANSI C mode by default, try to add an option
90 # to output variable @code{CC} to make it so. This macro tries various
91 # options that select ANSI C on some system or another. It considers the
92 # compiler to be in ANSI C mode if it handles function prototypes correctly.
94 # If you use this macro, you should check after calling it whether the C
95 # compiler has been set to accept ANSI C; if not, the shell variable
96 # @code{am_cv_prog_cc_stdc} is set to @samp{no}. If you wrote your source
97 # code in ANSI C, you can make an un-ANSIfied copy of it by using the
98 # program @code{ansi2knr}, which comes with Ghostscript.
101 AC_DEFUN([AM_PROG_CC_STDC],
102 [AC_REQUIRE([AC_PROG_CC])
103 AC_BEFORE([$0], [AC_C_INLINE])
104 AC_BEFORE([$0], [AC_C_CONST])
105 dnl Force this before AC_PROG_CPP. Some cpp's, eg on HPUX, require
106 dnl a magic option to avoid problems with ANSI preprocessor commands
108 dnl FIXME: can't do this because then AC_AIX won't work due to a
109 dnl circular dependency.
110 dnl AC_BEFORE([$0], [AC_PROG_CPP])
111 AC_MSG_CHECKING([for ${CC-cc} option to accept ANSI C])
112 AC_CACHE_VAL(am_cv_prog_cc_stdc,
113 [am_cv_prog_cc_stdc=no
115 # Don't try gcc -ansi; that turns off useful extensions and
116 # breaks some systems' header files.
118 # Ultrix and OSF/1 -std1
119 # HP-UX 10.20 and later -Ae
120 # HP-UX older versions -Aa -D_HPUX_SOURCE
121 # SVR4 -Xc -D__EXTENSIONS__
122 for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
124 CC="$ac_save_CC $ac_arg"
128 #include <sys/types.h>
129 #include <sys/stat.h>
130 /* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */
131 struct buf { int x; };
132 FILE * (*rcsopen) (struct buf *, struct stat *, int);
133 static char *e (p, i)
139 static char *f (char * (*g) (char **, int), char **p, ...)
144 s = g (p, va_arg (v,int));
148 int test (int i, double x);
149 struct s1 {int (*f) (int a);};
150 struct s2 {int (*f) (double a);};
151 int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
155 return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1];
157 [am_cv_prog_cc_stdc="$ac_arg"; break])
161 if test -z "$am_cv_prog_cc_stdc"; then
162 AC_MSG_RESULT([none needed])
164 AC_MSG_RESULT([$am_cv_prog_cc_stdc])
166 case "x$am_cv_prog_cc_stdc" in
168 *) CC="$CC $am_cv_prog_cc_stdc" ;;
172 dnl From Bruno Haible.
176 dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and
177 dnl those with the standalone portable GNU libiconv installed).
179 AC_ARG_WITH([libiconv-prefix],
180 AS_HELP_STRING([--with-libiconv-prefix=DIR], [search for libiconv in DIR/include and DIR/lib]), [
181 for dir in `echo "$withval" | tr : ' '`; do
182 if test -d $dir/include; then LIBICONV_INCLUDE="-I$dir/include"; fi
183 if test -d $dir/lib; then LIBICONV_LIBDIR="-L$dir/lib"; fi
187 BUILD_LIBICONV_LIBDIR="-L../libiconv/lib/.libs -L../libiconv/lib/_libs"
188 BUILD_LIBICONV_INCLUDE="-I../libiconv/include"
190 AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [
191 am_cv_func_iconv="no, consider installing GNU libiconv"
193 am_cv_use_build_libiconv=no
195 # If libiconv is part of the build tree, then try using it over
197 if test -d ../libiconv; then
199 am_save_CPPFLAGS="$CPPFLAGS"
200 LIBS="$LIBS $BUILD_LIBICONV_LIBDIR -liconv"
201 CPPFLAGS="$CPPFLAGS $BUILD_LIBICONV_INCLUDE"
202 AC_TRY_LINK([#include <stdlib.h>
204 [iconv_t cd = iconv_open("","");
205 iconv(cd,NULL,NULL,NULL,NULL);
207 am_cv_use_build_libiconv=yes
209 am_cv_func_iconv=yes)
211 CPPFLAGS="$am_save_CPPFLAGS"
214 # Next, try to find iconv in libc.
215 if test "$am_cv_func_iconv" != yes; then
216 AC_TRY_LINK([#include <stdlib.h>
218 [iconv_t cd = iconv_open("","");
219 iconv(cd,NULL,NULL,NULL,NULL);
221 am_cv_func_iconv=yes)
224 # If iconv was not in libc, try -liconv. In this case, arrange to
225 # look in the libiconv prefix, if it was specified by the user.
226 if test "$am_cv_func_iconv" != yes; then
227 am_save_CPPFLAGS="$CPPFLAGS"
229 if test -n "$LIBICONV_INCLUDE"; then
230 CPPFLAGS="$CPPFLAGS $LIBICONV_INCLUDE"
231 LIBS="$LIBS $LIBICONV_LIBDIR"
234 AC_TRY_LINK([#include <stdlib.h>
236 [iconv_t cd = iconv_open("","");
237 iconv(cd,NULL,NULL,NULL,NULL);
240 am_cv_func_iconv=yes)
242 CPPFLAGS="$am_save_CPPFLAGS"
246 # Set the various flags based on the cache variables. We can't rely
247 # on the flags to remain set from the above code, due to caching.
249 if test "$am_cv_lib_iconv" = yes; then
255 if test "$am_cv_use_build_libiconv" = yes; then
256 LIBICONV_LIBDIR="$BUILD_LIBICONV_LIBDIR"
257 LIBICONV_INCLUDE="$BUILD_LIBICONV_INCLUDE"
259 CPPFLAGS="$CPPFLAGS $LIBICONV_INCLUDE"
260 LIBS="$LIBS $LIBICONV_LIBDIR $LIBICONV"
262 if test "$am_cv_func_iconv" = yes; then
263 AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
264 AC_MSG_CHECKING([for iconv declaration])
265 AC_CACHE_VAL(am_cv_proto_iconv, [
273 #if defined(__STDC__) || defined(__cplusplus)
274 size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
278 ], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const")
279 am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"])
280 am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
281 AC_MSG_RESULT([$]{ac_t:-
282 }[$]am_cv_proto_iconv)
283 AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1,
284 [Define as const if the declaration of iconv() needs const.])
288 dnl written by Guido Draheim <guidod@gmx.de>, original by Alexandre Oliva
289 dnl Version 1.3 (2001/03/02)
290 dnl source http://www.gnu.org/software/ac-archive/Miscellaneous/ac_define_dir.html
292 AC_DEFUN([AC_DEFINE_DIR], [
293 test "x$prefix" = xNONE && prefix="$ac_default_prefix"
294 test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
295 ac_define_dir=`eval echo [$]$2`
296 ac_define_dir=`eval echo [$]ac_define_dir`
298 AC_DEFINE_UNQUOTED($1, "$ac_define_dir"),
299 AC_DEFINE_UNQUOTED($1, "$ac_define_dir", $3))
302 dnl See whether we need a declaration for a function.
303 dnl The result is highly dependent on the INCLUDES passed in, so make sure
304 dnl to use a different cache variable name in this macro if it is invoked
305 dnl in a different context somewhere else.
306 dnl gcc_AC_CHECK_DECL(SYMBOL,
307 dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, INCLUDES]]])
308 AC_DEFUN([gcc_AC_CHECK_DECL],
309 [AC_MSG_CHECKING([whether $1 is declared])
310 AC_CACHE_VAL(gcc_cv_have_decl_$1,
311 [AC_TRY_COMPILE([$4],
313 char *(*pfn) = (char *(*)) $1 ;
314 #endif], eval "gcc_cv_have_decl_$1=yes", eval "gcc_cv_have_decl_$1=no")])
315 if eval "test \"`echo '$gcc_cv_have_decl_'$1`\" = yes"; then
316 AC_MSG_RESULT(yes) ; ifelse([$2], , :, [$2])
318 AC_MSG_RESULT(no) ; ifelse([$3], , :, [$3])
322 dnl Check multiple functions to see whether each needs a declaration.
323 dnl Arrange to define HAVE_DECL_<FUNCTION> to 0 or 1 as appropriate.
324 dnl gcc_AC_CHECK_DECLS(SYMBOLS,
325 dnl [ACTION-IF-NEEDED [, ACTION-IF-NOT-NEEDED [, INCLUDES]]])
326 AC_DEFUN([gcc_AC_CHECK_DECLS],
330 ac_tr_decl=HAVE_DECL_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
332 gcc_AC_CHECK_DECL($ac_func,
333 [AC_DEFINE_UNQUOTED($ac_tr_decl, 1) $2],
334 [AC_DEFINE_UNQUOTED($ac_tr_decl, 0) $3],
335 dnl It is possible that the include files passed in here are local headers
336 dnl which supply a backup declaration for the relevant prototype based on
337 dnl the definition of (or lack of) the HAVE_DECL_ macro. If so, this test
338 dnl will always return success. E.g. see libiberty.h's handling of
339 dnl `basename'. To avoid this, we define the relevant HAVE_DECL_ macro to
340 dnl 1 so that any local headers used do not provide their own prototype
341 dnl during this test.
343 #define $ac_tr_decl 1
347 dnl Automatically generate config.h entries via autoheader.
349 patsubst(translit([$1], [a-z], [A-Z]), [\w+],
350 [AC_DEFINE([HAVE_DECL_\&], 1,
351 [Define to 1 if we found this declaration otherwise define to 0.])])dnl
355 dnl Find the location of the private Tcl headers
356 dnl When Tcl is installed, this is TCL_INCLUDE_SPEC/tcl-private/generic
357 dnl When Tcl is in the build tree, this is not needed.
359 dnl Note: you must use first use SC_LOAD_TCLCONFIG!
360 AC_DEFUN([CY_AC_TCL_PRIVATE_HEADERS], [
361 AC_MSG_CHECKING([for Tcl private headers])
363 dir=`echo ${TCL_INCLUDE_SPEC}/tcl-private/generic | sed -e s/-I//`
364 if test -f ${dir}/tclInt.h ; then
368 if test x"${private_dir}" = x; then
369 AC_ERROR(could not find private Tcl headers)
371 TCL_PRIVATE_INCLUDE="-I${private_dir}"
372 AC_MSG_RESULT(${private_dir})
376 dnl Find the location of the private Tk headers
377 dnl When Tk is installed, this is TK_INCLUDE_SPEC/tk-private/generic
378 dnl When Tk is in the build tree, this not needed.
380 dnl Note: you must first use SC_LOAD_TKCONFIG
381 AC_DEFUN([CY_AC_TK_PRIVATE_HEADERS], [
382 AC_MSG_CHECKING([for Tk private headers])
384 dir=`echo ${TK_INCLUDE_SPEC}/tk-private/generic | sed -e s/-I//`
385 if test -f ${dir}/tkInt.h; then
389 if test x"${private_dir}" = x; then
390 AC_ERROR(could not find Tk private headers)
392 TK_PRIVATE_INCLUDE="-I${private_dir}"
393 AC_MSG_RESULT(${private_dir})
397 dnl GDB_AC_WITH_DIR([VARIABLE], [ARG-NAME], [HELP], [DEFAULT])
398 dnl Add a new --with option that defines a directory.
399 dnl The result is stored in VARIABLE. AC_DEFINE_DIR is called
400 dnl on this variable, as is AC_SUBST.
401 dnl ARG-NAME is the base name of the argument (without "--with").
402 dnl HELP is the help text to use.
403 dnl If the user's choice is relative to the prefix, then the
404 dnl result is relocatable, then this will define the C macro
405 dnl VARIABLE_RELOCATABLE to 1; otherwise it is defined as 0.
406 dnl DEFAULT is the default value, which is used if the user
407 dnl does not specify the argument.
408 AC_DEFUN([GDB_AC_WITH_DIR], [
409 AC_ARG_WITH([$2], AS_HELP_STRING([--with-][$2][=PATH], [$3]), [
410 [$1]=$withval], [[$1]=[$4]])
411 AC_DEFINE_DIR([$1], [$1], [$3])
413 if test "x$exec_prefix" = xNONE || test "x$exec_prefix" = 'x${prefix}'; then
414 if test "x$prefix" = xNONE; then
415 test_prefix=/usr/local
420 test_prefix=$exec_prefix
423 case ${ac_define_dir} in
424 "${test_prefix}"|"${test_prefix}/"*|\
425 '${exec_prefix}'|'${exec_prefix}/'*)
429 AC_DEFINE_UNQUOTED([$1]_RELOCATABLE, $value, [Define if the $2 directory should be relocated when GDB is moved.])