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 ## ----------------------------------------- ##
56 ## ANSIfy the C compiler whenever possible. ##
57 ## From Franc,ois Pinard ##
58 ## ----------------------------------------- ##
60 # Copyright (C) 1996-2013 Free Software Foundation, Inc.
62 # This program is free software; you can redistribute it and/or modify
63 # it under the terms of the GNU General Public License as published by
64 # the Free Software Foundation; either version 2, or (at your option)
67 # This program is distributed in the hope that it will be useful,
68 # but WITHOUT ANY WARRANTY; without even the implied warranty of
69 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
70 # GNU General Public License for more details.
72 # You should have received a copy of the GNU General Public License
73 # along with this program; if not, see <http://www.gnu.org/licenses/>.
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 $am_cv_prog_cc_stdc" ;;
163 dnl Originally from Bruno Haible, but with some modifications
164 dnl for the GDB project.
168 dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and
169 dnl those with the standalone portable GNU libiconv installed).
171 AC_ARG_WITH([libiconv-prefix],
172 AS_HELP_STRING([--with-libiconv-prefix=DIR], [search for libiconv in DIR/include and DIR/lib]), [
173 for dir in `echo "$withval" | tr : ' '`; do
174 if test -d $dir/include; then LIBICONV_INCLUDE="-I$dir/include"; fi
175 if test -d $dir/lib; then LIBICONV_LIBDIR="-L$dir/lib"; fi
179 BUILD_LIBICONV_LIBDIRS="../libiconv/lib/.libs ../libiconv/lib/_libs"
180 BUILD_LIBICONV_INCLUDE="-I../libiconv/include"
182 AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [
183 am_cv_func_iconv="no, consider installing GNU libiconv"
185 am_cv_use_build_libiconv=no
186 am_cv_build_libiconv_path=
188 # If libiconv is part of the build tree, then try using it over
190 if test -d ../libiconv; then
191 for lib_dir in $BUILD_LIBICONV_LIBDIRS; do
193 am_save_CPPFLAGS="$CPPFLAGS"
194 LIBS="$LIBS $lib_dir/libiconv.a"
195 CPPFLAGS="$CPPFLAGS $BUILD_LIBICONV_INCLUDE"
196 AC_TRY_LINK([#include <stdlib.h>
198 [iconv_t cd = iconv_open("","");
199 iconv(cd,NULL,NULL,NULL,NULL);
201 am_cv_use_build_libiconv=yes
202 am_cv_build_libiconv_path=$lib_dir/libiconv.a
204 am_cv_func_iconv=yes)
206 CPPFLAGS="$am_save_CPPFLAGS"
207 if test "$am_cv_use_build_libiconv" = "yes"; then
213 # Next, try to find iconv in libc.
214 if test "$am_cv_func_iconv" != yes; then
215 AC_TRY_LINK([#include <stdlib.h>
217 [iconv_t cd = iconv_open("","");
218 iconv(cd,NULL,NULL,NULL,NULL);
220 am_cv_func_iconv=yes)
223 # If iconv was not in libc, try -liconv. In this case, arrange to
224 # look in the libiconv prefix, if it was specified by the user.
225 if test "$am_cv_func_iconv" != yes; then
226 am_save_CPPFLAGS="$CPPFLAGS"
228 if test -n "$LIBICONV_INCLUDE"; then
229 CPPFLAGS="$CPPFLAGS $LIBICONV_INCLUDE"
230 LIBS="$LIBS $LIBICONV_LIBDIR"
233 AC_TRY_LINK([#include <stdlib.h>
235 [iconv_t cd = iconv_open("","");
236 iconv(cd,NULL,NULL,NULL,NULL);
239 am_cv_func_iconv=yes)
241 CPPFLAGS="$am_save_CPPFLAGS"
245 # Set the various flags based on the cache variables. We can't rely
246 # on the flags to remain set from the above code, due to caching.
248 if test "$am_cv_lib_iconv" = yes; then
254 if test "$am_cv_use_build_libiconv" = yes; then
255 LIBICONV="$am_cv_build_libiconv_path"
257 LIBICONV_INCLUDE="$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_DEFINE_RELOCATABLE([VARIABLE], [ARG-NAME], [SHELL-VARIABLE])
398 dnl For use in processing directory values for --with-foo.
399 dnl If the path in SHELL_VARIABLE is relative to the prefix, then the
400 dnl result is relocatable, then this will define the C macro
401 dnl VARIABLE_RELOCATABLE to 1; otherwise it is defined as 0.
402 AC_DEFUN([GDB_AC_DEFINE_RELOCATABLE], [
403 if test "x$exec_prefix" = xNONE || test "x$exec_prefix" = 'x${prefix}'; then
404 if test "x$prefix" = xNONE; then
405 test_prefix=/usr/local
410 test_prefix=$exec_prefix
414 "${test_prefix}"|"${test_prefix}/"*|\
415 '${exec_prefix}'|'${exec_prefix}/'*)
419 AC_DEFINE_UNQUOTED([$1]_RELOCATABLE, $value, [Define if the $2 directory should be relocated when GDB is moved.])
422 dnl GDB_AC_WITH_DIR([VARIABLE], [ARG-NAME], [HELP], [DEFAULT])
423 dnl Add a new --with option that defines a directory.
424 dnl The result is stored in VARIABLE. AC_DEFINE_DIR is called
425 dnl on this variable, as is AC_SUBST.
426 dnl ARG-NAME is the base name of the argument (without "--with").
427 dnl HELP is the help text to use.
428 dnl If the user's choice is relative to the prefix, then the
429 dnl result is relocatable, then this will define the C macro
430 dnl VARIABLE_RELOCATABLE to 1; otherwise it is defined as 0.
431 dnl DEFAULT is the default value, which is used if the user
432 dnl does not specify the argument.
433 AC_DEFUN([GDB_AC_WITH_DIR], [
434 AC_ARG_WITH([$2], AS_HELP_STRING([--with-][$2][=PATH], [$3]), [
435 [$1]=$withval], [[$1]=[$4]])
436 AC_DEFINE_DIR([$1], [$1], [$3])
438 GDB_AC_DEFINE_RELOCATABLE([$1], [$2], ${ac_define_dir})
441 dnl GDB_AC_CHECK_BFD([MESSAGE], [CV], [CODE], [HEADER])
442 dnl Check whether BFD provides a feature.
443 dnl MESSAGE is the "checking" message to display.
444 dnl CV is the name of the cache variable where the result is stored.
445 dnl The result will be "yes" or "no".
446 dnl CODE is some code to compile that checks for the feature.
447 dnl A link test is run.
448 dnl HEADER is the name of an extra BFD header to include.
449 AC_DEFUN([GDB_AC_CHECK_BFD], [
453 # Put the old CFLAGS/LDFLAGS last, in case the user's (C|LD)FLAGS
454 # points somewhere with bfd, with -I/foo/lib and -L/foo/lib. We
455 # always want our bfd.
456 CFLAGS="-I${srcdir}/../include -I../bfd -I${srcdir}/../bfd $CFLAGS"
457 LDFLAGS="-L../bfd -L../libiberty $LDFLAGS"
458 intl=`echo $LIBINTL | sed 's,${top_builddir}/,,g'`
459 # -ldl is provided by bfd/Makfile.am (LIBDL) <PLUGINS>.
460 if test "$plugins" = "yes"; then
461 AC_SEARCH_LIBS(dlopen, dl)
463 LIBS="-lbfd -liberty $intl $LIBS"
464 AC_CACHE_CHECK([$1], [$2],
470 [return $3;], [[$2]=yes], [[$2]=no])])