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 # Keep these includes in sync with the aclocal_m4_deps list in
7 sinclude(acx_configure_dir.m4)
9 # This gets GDB_AC_LIBMCHECK.
10 sinclude(libmcheck.m4)
12 dnl gdb/configure.in uses BFD_NEED_DECLARATION, so get its definition.
13 sinclude(../bfd/bfd.m4)
15 dnl This gets the standard macros.
16 sinclude(../config/acinclude.m4)
18 dnl This gets AC_PLUGINS, needed by ACX_LARGEFILE.
19 sinclude(../config/plugins.m4)
21 dnl For ACX_LARGEFILE.
22 sinclude(../config/largefile.m4)
24 dnl For AM_SET_LEADING_DOT.
25 sinclude(../config/lead-dot.m4)
27 dnl This gets autoconf bugfixes.
28 sinclude(../config/override.m4)
30 dnl For ZW_GNU_GETTEXT_SISTER_DIR.
31 sinclude(../config/gettext-sister.m4)
33 dnl For AC_LIB_HAVE_LINKFLAGS.
34 sinclude(../config/lib-ld.m4)
35 sinclude(../config/lib-prefix.m4)
36 sinclude(../config/lib-link.m4)
38 dnl For ACX_PKGVERSION and ACX_BUGURL.
39 sinclude(../config/acx.m4)
41 dnl for TCL definitions
42 sinclude(../config/tcl.m4)
44 dnl For dependency tracking macros.
45 sinclude([../config/depstand.m4])
47 dnl For AM_LC_MESSAGES
48 sinclude([../config/lcmessage.m4])
50 dnl For AM_LANGINFO_CODESET.
51 sinclude([../config/codeset.m4])
53 sinclude([../config/zlib.m4])
55 m4_include([common/common.m4])
57 ## ----------------------------------------- ##
58 ## ANSIfy the C compiler whenever possible. ##
59 ## From Franc,ois Pinard ##
60 ## ----------------------------------------- ##
62 # Copyright (C) 1996-2014 Free Software Foundation, Inc.
64 # This program is free software; you can redistribute it and/or modify
65 # it under the terms of the GNU General Public License as published by
66 # the Free Software Foundation; either version 2, or (at your option)
69 # This program is distributed in the hope that it will be useful,
70 # but WITHOUT ANY WARRANTY; without even the implied warranty of
71 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
72 # GNU General Public License for more details.
74 # You should have received a copy of the GNU General Public License
75 # along with this program; if not, see <http://www.gnu.org/licenses/>.
79 # @defmac AC_PROG_CC_STDC
80 # @maindex PROG_CC_STDC
82 # If the C compiler in not in ANSI C mode by default, try to add an option
83 # to output variable @code{CC} to make it so. This macro tries various
84 # options that select ANSI C on some system or another. It considers the
85 # compiler to be in ANSI C mode if it handles function prototypes correctly.
87 # If you use this macro, you should check after calling it whether the C
88 # compiler has been set to accept ANSI C; if not, the shell variable
89 # @code{am_cv_prog_cc_stdc} is set to @samp{no}. If you wrote your source
90 # code in ANSI C, you can make an un-ANSIfied copy of it by using the
91 # program @code{ansi2knr}, which comes with Ghostscript.
94 AC_DEFUN([AM_PROG_CC_STDC],
95 [AC_REQUIRE([AC_PROG_CC])
96 AC_BEFORE([$0], [AC_C_INLINE])
97 AC_BEFORE([$0], [AC_C_CONST])
98 dnl Force this before AC_PROG_CPP. Some cpp's, eg on HPUX, require
99 dnl a magic option to avoid problems with ANSI preprocessor commands
101 dnl FIXME: can't do this because then AC_AIX won't work due to a
102 dnl circular dependency.
103 dnl AC_BEFORE([$0], [AC_PROG_CPP])
104 AC_MSG_CHECKING([for ${CC-cc} option to accept ANSI C])
105 AC_CACHE_VAL(am_cv_prog_cc_stdc,
106 [am_cv_prog_cc_stdc=no
108 # Don't try gcc -ansi; that turns off useful extensions and
109 # breaks some systems' header files.
111 # Ultrix and OSF/1 -std1
112 # HP-UX 10.20 and later -Ae
113 # HP-UX older versions -Aa -D_HPUX_SOURCE
114 # SVR4 -Xc -D__EXTENSIONS__
115 for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
117 CC="$ac_save_CC $ac_arg"
121 #include <sys/types.h>
122 #include <sys/stat.h>
123 /* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */
124 struct buf { int x; };
125 FILE * (*rcsopen) (struct buf *, struct stat *, int);
126 static char *e (p, i)
132 static char *f (char * (*g) (char **, int), char **p, ...)
137 s = g (p, va_arg (v,int));
141 int test (int i, double x);
142 struct s1 {int (*f) (int a);};
143 struct s2 {int (*f) (double a);};
144 int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
148 return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1];
150 [am_cv_prog_cc_stdc="$ac_arg"; break])
154 if test -z "$am_cv_prog_cc_stdc"; then
155 AC_MSG_RESULT([none needed])
157 AC_MSG_RESULT([$am_cv_prog_cc_stdc])
159 case "x$am_cv_prog_cc_stdc" in
161 *) CC="$CC $am_cv_prog_cc_stdc" ;;
165 dnl Originally from Bruno Haible, but with some modifications
166 dnl for the GDB project.
170 dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and
171 dnl those with the standalone portable GNU libiconv installed).
173 AC_ARG_WITH([libiconv-prefix],
174 AS_HELP_STRING([--with-libiconv-prefix=DIR], [search for libiconv in DIR/include and DIR/lib]), [
175 for dir in `echo "$withval" | tr : ' '`; do
176 if test -d $dir/include; then LIBICONV_INCLUDE="-I$dir/include"; fi
177 if test -d $dir/lib; then LIBICONV_LIBDIR="-L$dir/lib"; fi
181 BUILD_LIBICONV_LIBDIRS="../libiconv/lib/.libs ../libiconv/lib/_libs"
182 BUILD_LIBICONV_INCLUDE="-I../libiconv/include"
184 AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [
185 am_cv_func_iconv="no, consider installing GNU libiconv"
187 am_cv_use_build_libiconv=no
188 am_cv_build_libiconv_path=
190 # If libiconv is part of the build tree, then try using it over
192 if test -d ../libiconv; then
193 for lib_dir in $BUILD_LIBICONV_LIBDIRS; do
195 am_save_CPPFLAGS="$CPPFLAGS"
196 LIBS="$LIBS $lib_dir/libiconv.a"
197 CPPFLAGS="$CPPFLAGS $BUILD_LIBICONV_INCLUDE"
198 AC_TRY_LINK([#include <stdlib.h>
200 [iconv_t cd = iconv_open("","");
201 iconv(cd,NULL,NULL,NULL,NULL);
203 am_cv_use_build_libiconv=yes
204 am_cv_build_libiconv_path=$lib_dir/libiconv.a
206 am_cv_func_iconv=yes)
208 CPPFLAGS="$am_save_CPPFLAGS"
209 if test "$am_cv_use_build_libiconv" = "yes"; then
215 # Next, try to find iconv in libc.
216 if test "$am_cv_func_iconv" != yes; then
217 AC_TRY_LINK([#include <stdlib.h>
219 [iconv_t cd = iconv_open("","");
220 iconv(cd,NULL,NULL,NULL,NULL);
222 am_cv_func_iconv=yes)
225 # If iconv was not in libc, try -liconv. In this case, arrange to
226 # look in the libiconv prefix, if it was specified by the user.
227 if test "$am_cv_func_iconv" != yes; then
228 am_save_CPPFLAGS="$CPPFLAGS"
230 if test -n "$LIBICONV_INCLUDE"; then
231 CPPFLAGS="$CPPFLAGS $LIBICONV_INCLUDE"
232 LIBS="$LIBS $LIBICONV_LIBDIR"
235 AC_TRY_LINK([#include <stdlib.h>
237 [iconv_t cd = iconv_open("","");
238 iconv(cd,NULL,NULL,NULL,NULL);
241 am_cv_func_iconv=yes)
243 CPPFLAGS="$am_save_CPPFLAGS"
247 # Set the various flags based on the cache variables. We can't rely
248 # on the flags to remain set from the above code, due to caching.
250 if test "$am_cv_lib_iconv" = yes; then
256 if test "$am_cv_use_build_libiconv" = yes; then
257 LIBICONV="$am_cv_build_libiconv_path"
259 LIBICONV_INCLUDE="$BUILD_LIBICONV_INCLUDE"
261 CPPFLAGS="$CPPFLAGS $LIBICONV_INCLUDE"
262 LIBS="$LIBS $LIBICONV_LIBDIR $LIBICONV"
264 if test "$am_cv_func_iconv" = yes; then
265 AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
266 AC_MSG_CHECKING([for iconv declaration])
267 AC_CACHE_VAL(am_cv_proto_iconv, [
275 #if defined(__STDC__) || defined(__cplusplus)
276 size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
280 ], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const")
281 am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"])
282 am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
283 AC_MSG_RESULT([$]{ac_t:-
284 }[$]am_cv_proto_iconv)
285 AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1,
286 [Define as const if the declaration of iconv() needs const.])
290 dnl written by Guido Draheim <guidod@gmx.de>, original by Alexandre Oliva
291 dnl Version 1.3 (2001/03/02)
292 dnl source http://www.gnu.org/software/ac-archive/Miscellaneous/ac_define_dir.html
294 AC_DEFUN([AC_DEFINE_DIR], [
295 test "x$prefix" = xNONE && prefix="$ac_default_prefix"
296 test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
297 ac_define_dir=`eval echo [$]$2`
298 ac_define_dir=`eval echo [$]ac_define_dir`
300 AC_DEFINE_UNQUOTED($1, "$ac_define_dir"),
301 AC_DEFINE_UNQUOTED($1, "$ac_define_dir", $3))
304 dnl See whether we need a declaration for a function.
305 dnl The result is highly dependent on the INCLUDES passed in, so make sure
306 dnl to use a different cache variable name in this macro if it is invoked
307 dnl in a different context somewhere else.
308 dnl gcc_AC_CHECK_DECL(SYMBOL,
309 dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, INCLUDES]]])
310 AC_DEFUN([gcc_AC_CHECK_DECL],
311 [AC_MSG_CHECKING([whether $1 is declared])
312 AC_CACHE_VAL(gcc_cv_have_decl_$1,
313 [AC_TRY_COMPILE([$4],
315 char *(*pfn) = (char *(*)) $1 ;
316 #endif], eval "gcc_cv_have_decl_$1=yes", eval "gcc_cv_have_decl_$1=no")])
317 if eval "test \"`echo '$gcc_cv_have_decl_'$1`\" = yes"; then
318 AC_MSG_RESULT(yes) ; ifelse([$2], , :, [$2])
320 AC_MSG_RESULT(no) ; ifelse([$3], , :, [$3])
324 dnl Check multiple functions to see whether each needs a declaration.
325 dnl Arrange to define HAVE_DECL_<FUNCTION> to 0 or 1 as appropriate.
326 dnl gcc_AC_CHECK_DECLS(SYMBOLS,
327 dnl [ACTION-IF-NEEDED [, ACTION-IF-NOT-NEEDED [, INCLUDES]]])
328 AC_DEFUN([gcc_AC_CHECK_DECLS],
332 ac_tr_decl=HAVE_DECL_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
334 gcc_AC_CHECK_DECL($ac_func,
335 [AC_DEFINE_UNQUOTED($ac_tr_decl, 1) $2],
336 [AC_DEFINE_UNQUOTED($ac_tr_decl, 0) $3],
337 dnl It is possible that the include files passed in here are local headers
338 dnl which supply a backup declaration for the relevant prototype based on
339 dnl the definition of (or lack of) the HAVE_DECL_ macro. If so, this test
340 dnl will always return success. E.g. see libiberty.h's handling of
341 dnl `basename'. To avoid this, we define the relevant HAVE_DECL_ macro to
342 dnl 1 so that any local headers used do not provide their own prototype
343 dnl during this test.
345 #define $ac_tr_decl 1
349 dnl Automatically generate config.h entries via autoheader.
351 patsubst(translit([$1], [a-z], [A-Z]), [\w+],
352 [AC_DEFINE([HAVE_DECL_\&], 1,
353 [Define to 1 if we found this declaration otherwise define to 0.])])dnl
357 dnl Find the location of the private Tcl headers
358 dnl When Tcl is installed, this is TCL_INCLUDE_SPEC/tcl-private/generic
359 dnl When Tcl is in the build tree, this is not needed.
361 dnl Note: you must use first use SC_LOAD_TCLCONFIG!
362 AC_DEFUN([CY_AC_TCL_PRIVATE_HEADERS], [
363 AC_MSG_CHECKING([for Tcl private headers])
365 dir=`echo ${TCL_INCLUDE_SPEC}/tcl-private/generic | sed -e s/-I//`
366 if test -f ${dir}/tclInt.h ; then
370 if test x"${private_dir}" = x; then
371 AC_ERROR(could not find private Tcl headers)
373 TCL_PRIVATE_INCLUDE="-I${private_dir}"
374 AC_MSG_RESULT(${private_dir})
378 dnl Find the location of the private Tk headers
379 dnl When Tk is installed, this is TK_INCLUDE_SPEC/tk-private/generic
380 dnl When Tk is in the build tree, this not needed.
382 dnl Note: you must first use SC_LOAD_TKCONFIG
383 AC_DEFUN([CY_AC_TK_PRIVATE_HEADERS], [
384 AC_MSG_CHECKING([for Tk private headers])
386 dir=`echo ${TK_INCLUDE_SPEC}/tk-private/generic | sed -e s/-I//`
387 if test -f ${dir}/tkInt.h; then
391 if test x"${private_dir}" = x; then
392 AC_ERROR(could not find Tk private headers)
394 TK_PRIVATE_INCLUDE="-I${private_dir}"
395 AC_MSG_RESULT(${private_dir})
399 dnl GDB_AC_DEFINE_RELOCATABLE([VARIABLE], [ARG-NAME], [SHELL-VARIABLE])
400 dnl For use in processing directory values for --with-foo.
401 dnl If the path in SHELL_VARIABLE is relative to the prefix, then the
402 dnl result is relocatable, then this will define the C macro
403 dnl VARIABLE_RELOCATABLE to 1; otherwise it is defined as 0.
404 AC_DEFUN([GDB_AC_DEFINE_RELOCATABLE], [
405 if test "x$exec_prefix" = xNONE || test "x$exec_prefix" = 'x${prefix}'; then
406 if test "x$prefix" = xNONE; then
407 test_prefix=/usr/local
412 test_prefix=$exec_prefix
416 "${test_prefix}"|"${test_prefix}/"*|\
417 '${exec_prefix}'|'${exec_prefix}/'*)
421 AC_DEFINE_UNQUOTED([$1]_RELOCATABLE, $value, [Define if the $2 directory should be relocated when GDB is moved.])
424 dnl GDB_AC_WITH_DIR([VARIABLE], [ARG-NAME], [HELP], [DEFAULT])
425 dnl Add a new --with option that defines a directory.
426 dnl The result is stored in VARIABLE. AC_DEFINE_DIR is called
427 dnl on this variable, as is AC_SUBST.
428 dnl ARG-NAME is the base name of the argument (without "--with").
429 dnl HELP is the help text to use.
430 dnl If the user's choice is relative to the prefix, then the
431 dnl result is relocatable, then this will define the C macro
432 dnl VARIABLE_RELOCATABLE to 1; otherwise it is defined as 0.
433 dnl DEFAULT is the default value, which is used if the user
434 dnl does not specify the argument.
435 AC_DEFUN([GDB_AC_WITH_DIR], [
436 AC_ARG_WITH([$2], AS_HELP_STRING([--with-][$2][=PATH], [$3]), [
437 [$1]=$withval], [[$1]=[$4]])
438 AC_DEFINE_DIR([$1], [$1], [$3])
440 GDB_AC_DEFINE_RELOCATABLE([$1], [$2], ${ac_define_dir})
443 dnl GDB_AC_CHECK_BFD([MESSAGE], [CV], [CODE], [HEADER])
444 dnl Check whether BFD provides a feature.
445 dnl MESSAGE is the "checking" message to display.
446 dnl CV is the name of the cache variable where the result is stored.
447 dnl The result will be "yes" or "no".
448 dnl CODE is some code to compile that checks for the feature.
449 dnl A link test is run.
450 dnl HEADER is the name of an extra BFD header to include.
451 AC_DEFUN([GDB_AC_CHECK_BFD], [
455 # Put the old CFLAGS/LDFLAGS last, in case the user's (C|LD)FLAGS
456 # points somewhere with bfd, with -I/foo/lib and -L/foo/lib. We
457 # always want our bfd.
458 CFLAGS="-I${srcdir}/../include -I../bfd -I${srcdir}/../bfd $CFLAGS"
459 LDFLAGS="-L../bfd -L../libiberty $LDFLAGS"
460 intl=`echo $LIBINTL | sed 's,${top_builddir}/,,g'`
461 # -ldl is provided by bfd/Makfile.am (LIBDL) <PLUGINS>.
462 if test "$plugins" = "yes"; then
463 AC_SEARCH_LIBS(dlopen, dl)
465 LIBS="-lbfd -liberty $intl $LIBS"
466 AC_CACHE_CHECK([$1], [$2],
472 [return $3;], [[$2]=yes], [[$2]=no])])