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 # This gets GDB_AC_TRANSFORM.
13 sinclude(transform.m4)
15 dnl gdb/configure.in uses BFD_NEED_DECLARATION, so get its definition.
16 sinclude(../bfd/bfd.m4)
18 dnl This gets the standard macros.
19 sinclude(../config/acinclude.m4)
21 dnl This gets AC_PLUGINS, needed by ACX_LARGEFILE.
22 sinclude(../config/plugins.m4)
24 dnl For ACX_LARGEFILE.
25 sinclude(../config/largefile.m4)
27 dnl For AM_SET_LEADING_DOT.
28 sinclude(../config/lead-dot.m4)
30 dnl This gets autoconf bugfixes.
31 sinclude(../config/override.m4)
33 dnl For ZW_GNU_GETTEXT_SISTER_DIR.
34 sinclude(../config/gettext-sister.m4)
36 dnl For AC_LIB_HAVE_LINKFLAGS.
37 sinclude(../config/lib-ld.m4)
38 sinclude(../config/lib-prefix.m4)
39 sinclude(../config/lib-link.m4)
41 dnl For ACX_PKGVERSION and ACX_BUGURL.
42 sinclude(../config/acx.m4)
44 dnl for TCL definitions
45 sinclude(../config/tcl.m4)
47 dnl For dependency tracking macros.
48 sinclude([../config/depstand.m4])
50 dnl For AM_LC_MESSAGES
51 sinclude([../config/lcmessage.m4])
53 dnl For AM_LANGINFO_CODESET.
54 sinclude([../config/codeset.m4])
56 sinclude([../config/zlib.m4])
58 m4_include([common/common.m4])
60 ## ----------------------------------------- ##
61 ## ANSIfy the C compiler whenever possible. ##
62 ## From Franc,ois Pinard ##
63 ## ----------------------------------------- ##
65 # Copyright (C) 1996-2015 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, see <http://www.gnu.org/licenses/>.
82 # @defmac AC_PROG_CC_STDC
83 # @maindex PROG_CC_STDC
85 # If the C compiler in not in ANSI C mode by default, try to add an option
86 # to output variable @code{CC} to make it so. This macro tries various
87 # options that select ANSI C on some system or another. It considers the
88 # compiler to be in ANSI C mode if it handles function prototypes correctly.
90 # If you use this macro, you should check after calling it whether the C
91 # compiler has been set to accept ANSI C; if not, the shell variable
92 # @code{am_cv_prog_cc_stdc} is set to @samp{no}. If you wrote your source
93 # code in ANSI C, you can make an un-ANSIfied copy of it by using the
94 # program @code{ansi2knr}, which comes with Ghostscript.
97 AC_DEFUN([AM_PROG_CC_STDC],
98 [AC_REQUIRE([AC_PROG_CC])
99 AC_BEFORE([$0], [AC_C_INLINE])
100 AC_BEFORE([$0], [AC_C_CONST])
101 dnl Force this before AC_PROG_CPP. Some cpp's, eg on HPUX, require
102 dnl a magic option to avoid problems with ANSI preprocessor commands
104 dnl FIXME: can't do this because then AC_AIX won't work due to a
105 dnl circular dependency.
106 dnl AC_BEFORE([$0], [AC_PROG_CPP])
107 AC_MSG_CHECKING([for ${CC-cc} option to accept ANSI C])
108 AC_CACHE_VAL(am_cv_prog_cc_stdc,
109 [am_cv_prog_cc_stdc=no
111 # Don't try gcc -ansi; that turns off useful extensions and
112 # breaks some systems' header files.
114 # Ultrix and OSF/1 -std1
115 # HP-UX 10.20 and later -Ae
116 # HP-UX older versions -Aa -D_HPUX_SOURCE
117 # SVR4 -Xc -D__EXTENSIONS__
118 for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
120 CC="$ac_save_CC $ac_arg"
124 #include <sys/types.h>
125 #include <sys/stat.h>
126 /* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */
127 struct buf { int x; };
128 FILE * (*rcsopen) (struct buf *, struct stat *, int);
129 static char *e (p, i)
135 static char *f (char * (*g) (char **, int), char **p, ...)
140 s = g (p, va_arg (v,int));
144 int test (int i, double x);
145 struct s1 {int (*f) (int a);};
146 struct s2 {int (*f) (double a);};
147 int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
151 return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1];
153 [am_cv_prog_cc_stdc="$ac_arg"; break])
157 if test -z "$am_cv_prog_cc_stdc"; then
158 AC_MSG_RESULT([none needed])
160 AC_MSG_RESULT([$am_cv_prog_cc_stdc])
162 case "x$am_cv_prog_cc_stdc" in
164 *) CC="$CC $am_cv_prog_cc_stdc" ;;
168 dnl Originally from Bruno Haible, but with some modifications
169 dnl for the GDB project.
173 dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and
174 dnl those with the standalone portable GNU libiconv installed).
176 AC_ARG_WITH([libiconv-prefix],
177 AS_HELP_STRING([--with-libiconv-prefix=DIR], [search for libiconv in DIR/include and DIR/lib]), [
178 for dir in `echo "$withval" | tr : ' '`; do
179 if test -d $dir/include; then LIBICONV_INCLUDE="-I$dir/include"; fi
180 if test -d $dir/lib; then LIBICONV_LIBDIR="-L$dir/lib"; fi
184 BUILD_LIBICONV_LIBDIRS="../libiconv/lib/.libs ../libiconv/lib/_libs"
185 BUILD_LIBICONV_INCLUDE="-I../libiconv/include"
187 AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [
188 am_cv_func_iconv="no, consider installing GNU libiconv"
190 am_cv_use_build_libiconv=no
191 am_cv_build_libiconv_path=
193 # If libiconv is part of the build tree, then try using it over
195 if test -d ../libiconv; then
196 for lib_dir in $BUILD_LIBICONV_LIBDIRS; do
198 am_save_CPPFLAGS="$CPPFLAGS"
199 LIBS="$LIBS $lib_dir/libiconv.a"
200 CPPFLAGS="$CPPFLAGS $BUILD_LIBICONV_INCLUDE"
201 AC_TRY_LINK([#include <stdlib.h>
203 [iconv_t cd = iconv_open("","");
204 iconv(cd,NULL,NULL,NULL,NULL);
206 am_cv_use_build_libiconv=yes
207 am_cv_build_libiconv_path=$lib_dir/libiconv.a
209 am_cv_func_iconv=yes)
211 CPPFLAGS="$am_save_CPPFLAGS"
212 if test "$am_cv_use_build_libiconv" = "yes"; then
218 # Next, try to find iconv in libc.
219 if test "$am_cv_func_iconv" != yes; then
220 AC_TRY_LINK([#include <stdlib.h>
222 [iconv_t cd = iconv_open("","");
223 iconv(cd,NULL,NULL,NULL,NULL);
225 am_cv_func_iconv=yes)
228 # If iconv was not in libc, try -liconv. In this case, arrange to
229 # look in the libiconv prefix, if it was specified by the user.
230 if test "$am_cv_func_iconv" != yes; then
231 am_save_CPPFLAGS="$CPPFLAGS"
233 if test -n "$LIBICONV_INCLUDE"; then
234 CPPFLAGS="$CPPFLAGS $LIBICONV_INCLUDE"
235 LIBS="$LIBS $LIBICONV_LIBDIR"
238 AC_TRY_LINK([#include <stdlib.h>
240 [iconv_t cd = iconv_open("","");
241 iconv(cd,NULL,NULL,NULL,NULL);
244 am_cv_func_iconv=yes)
246 CPPFLAGS="$am_save_CPPFLAGS"
250 # Set the various flags based on the cache variables. We can't rely
251 # on the flags to remain set from the above code, due to caching.
253 if test "$am_cv_lib_iconv" = yes; then
259 if test "$am_cv_use_build_libiconv" = yes; then
260 LIBICONV="$am_cv_build_libiconv_path"
262 LIBICONV_INCLUDE="$BUILD_LIBICONV_INCLUDE"
264 CPPFLAGS="$CPPFLAGS $LIBICONV_INCLUDE"
265 LIBS="$LIBS $LIBICONV_LIBDIR $LIBICONV"
267 if test "$am_cv_func_iconv" = yes; then
268 AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
269 AC_MSG_CHECKING([for iconv declaration])
270 AC_CACHE_VAL(am_cv_proto_iconv, [
278 #if defined(__STDC__) || defined(__cplusplus)
279 size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
283 ], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const")
284 am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"])
285 am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
286 AC_MSG_RESULT([$]{ac_t:-
287 }[$]am_cv_proto_iconv)
288 AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1,
289 [Define as const if the declaration of iconv() needs const.])
293 dnl written by Guido Draheim <guidod@gmx.de>, original by Alexandre Oliva
294 dnl Version 1.3 (2001/03/02)
295 dnl source http://www.gnu.org/software/ac-archive/Miscellaneous/ac_define_dir.html
297 AC_DEFUN([AC_DEFINE_DIR], [
298 test "x$prefix" = xNONE && prefix="$ac_default_prefix"
299 test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
300 ac_define_dir=`eval echo [$]$2`
301 ac_define_dir=`eval echo [$]ac_define_dir`
303 AC_DEFINE_UNQUOTED($1, "$ac_define_dir"),
304 AC_DEFINE_UNQUOTED($1, "$ac_define_dir", $3))
307 dnl See whether we need a declaration for a function.
308 dnl The result is highly dependent on the INCLUDES passed in, so make sure
309 dnl to use a different cache variable name in this macro if it is invoked
310 dnl in a different context somewhere else.
311 dnl gcc_AC_CHECK_DECL(SYMBOL,
312 dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, INCLUDES]]])
313 AC_DEFUN([gcc_AC_CHECK_DECL],
314 [AC_MSG_CHECKING([whether $1 is declared])
315 AC_CACHE_VAL(gcc_cv_have_decl_$1,
316 [AC_TRY_COMPILE([$4],
318 char *(*pfn) = (char *(*)) $1 ;
319 #endif], eval "gcc_cv_have_decl_$1=yes", eval "gcc_cv_have_decl_$1=no")])
320 if eval "test \"`echo '$gcc_cv_have_decl_'$1`\" = yes"; then
321 AC_MSG_RESULT(yes) ; ifelse([$2], , :, [$2])
323 AC_MSG_RESULT(no) ; ifelse([$3], , :, [$3])
327 dnl Check multiple functions to see whether each needs a declaration.
328 dnl Arrange to define HAVE_DECL_<FUNCTION> to 0 or 1 as appropriate.
329 dnl gcc_AC_CHECK_DECLS(SYMBOLS,
330 dnl [ACTION-IF-NEEDED [, ACTION-IF-NOT-NEEDED [, INCLUDES]]])
331 AC_DEFUN([gcc_AC_CHECK_DECLS],
335 ac_tr_decl=HAVE_DECL_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
337 gcc_AC_CHECK_DECL($ac_func,
338 [AC_DEFINE_UNQUOTED($ac_tr_decl, 1) $2],
339 [AC_DEFINE_UNQUOTED($ac_tr_decl, 0) $3],
340 dnl It is possible that the include files passed in here are local headers
341 dnl which supply a backup declaration for the relevant prototype based on
342 dnl the definition of (or lack of) the HAVE_DECL_ macro. If so, this test
343 dnl will always return success. E.g. see libiberty.h's handling of
344 dnl `basename'. To avoid this, we define the relevant HAVE_DECL_ macro to
345 dnl 1 so that any local headers used do not provide their own prototype
346 dnl during this test.
348 #define $ac_tr_decl 1
352 dnl Automatically generate config.h entries via autoheader.
354 patsubst(translit([$1], [a-z], [A-Z]), [\w+],
355 [AC_DEFINE([HAVE_DECL_\&], 1,
356 [Define to 1 if we found this declaration otherwise define to 0.])])dnl
360 dnl Find the location of the private Tcl headers
361 dnl When Tcl is installed, this is TCL_INCLUDE_SPEC/tcl-private/generic
362 dnl When Tcl is in the build tree, this is not needed.
364 dnl Note: you must use first use SC_LOAD_TCLCONFIG!
365 AC_DEFUN([CY_AC_TCL_PRIVATE_HEADERS], [
366 AC_MSG_CHECKING([for Tcl private headers])
368 dir=`echo ${TCL_INCLUDE_SPEC}/tcl-private/generic | sed -e s/-I//`
369 if test -f ${dir}/tclInt.h ; then
373 if test x"${private_dir}" = x; then
374 AC_ERROR(could not find private Tcl headers)
376 TCL_PRIVATE_INCLUDE="-I${private_dir}"
377 AC_MSG_RESULT(${private_dir})
381 dnl Find the location of the private Tk headers
382 dnl When Tk is installed, this is TK_INCLUDE_SPEC/tk-private/generic
383 dnl When Tk is in the build tree, this not needed.
385 dnl Note: you must first use SC_LOAD_TKCONFIG
386 AC_DEFUN([CY_AC_TK_PRIVATE_HEADERS], [
387 AC_MSG_CHECKING([for Tk private headers])
389 dir=`echo ${TK_INCLUDE_SPEC}/tk-private/generic | sed -e s/-I//`
390 if test -f ${dir}/tkInt.h; then
394 if test x"${private_dir}" = x; then
395 AC_ERROR(could not find Tk private headers)
397 TK_PRIVATE_INCLUDE="-I${private_dir}"
398 AC_MSG_RESULT(${private_dir})
402 dnl GDB_AC_DEFINE_RELOCATABLE([VARIABLE], [ARG-NAME], [SHELL-VARIABLE])
403 dnl For use in processing directory values for --with-foo.
404 dnl If the path in SHELL_VARIABLE is relative to the prefix, then the
405 dnl result is relocatable, then this will define the C macro
406 dnl VARIABLE_RELOCATABLE to 1; otherwise it is defined as 0.
407 AC_DEFUN([GDB_AC_DEFINE_RELOCATABLE], [
408 if test "x$exec_prefix" = xNONE || test "x$exec_prefix" = 'x${prefix}'; then
409 if test "x$prefix" = xNONE; then
410 test_prefix=/usr/local
415 test_prefix=$exec_prefix
419 "${test_prefix}"|"${test_prefix}/"*|\
420 '${exec_prefix}'|'${exec_prefix}/'*)
424 AC_DEFINE_UNQUOTED([$1]_RELOCATABLE, $value, [Define if the $2 directory should be relocated when GDB is moved.])
427 dnl GDB_AC_WITH_DIR([VARIABLE], [ARG-NAME], [HELP], [DEFAULT])
428 dnl Add a new --with option that defines a directory.
429 dnl The result is stored in VARIABLE. AC_DEFINE_DIR is called
430 dnl on this variable, as is AC_SUBST.
431 dnl ARG-NAME is the base name of the argument (without "--with").
432 dnl HELP is the help text to use.
433 dnl If the user's choice is relative to the prefix, then the
434 dnl result is relocatable, then this will define the C macro
435 dnl VARIABLE_RELOCATABLE to 1; otherwise it is defined as 0.
436 dnl DEFAULT is the default value, which is used if the user
437 dnl does not specify the argument.
438 AC_DEFUN([GDB_AC_WITH_DIR], [
439 AC_ARG_WITH([$2], AS_HELP_STRING([--with-][$2][=PATH], [$3]), [
440 [$1]=$withval], [[$1]=[$4]])
441 AC_DEFINE_DIR([$1], [$1], [$3])
443 GDB_AC_DEFINE_RELOCATABLE([$1], [$2], ${ac_define_dir})
446 dnl GDB_AC_CHECK_BFD([MESSAGE], [CV], [CODE], [HEADER])
447 dnl Check whether BFD provides a feature.
448 dnl MESSAGE is the "checking" message to display.
449 dnl CV is the name of the cache variable where the result is stored.
450 dnl The result will be "yes" or "no".
451 dnl CODE is some code to compile that checks for the feature.
452 dnl A link test is run.
453 dnl HEADER is the name of an extra BFD header to include.
454 AC_DEFUN([GDB_AC_CHECK_BFD], [
458 # Put the old CFLAGS/LDFLAGS last, in case the user's (C|LD)FLAGS
459 # points somewhere with bfd, with -I/foo/lib and -L/foo/lib. We
460 # always want our bfd.
461 CFLAGS="-I${srcdir}/../include -I../bfd -I${srcdir}/../bfd $CFLAGS"
462 LDFLAGS="-L../bfd -L../libiberty $LDFLAGS"
463 intl=`echo $LIBINTL | sed 's,${top_builddir}/,,g'`
464 LIBS="-lbfd -liberty $intl $LIBS"
465 AC_CACHE_CHECK([$1], [$2],
471 [return $3;], [[$2]=yes], [[$2]=no])])
476 dnl GDB_GUILE_PROGRAM_NAMES([PKG-CONFIG], [VERSION])
478 dnl Define and substitute 'GUILD' to contain the absolute file name of
479 dnl the 'guild' command for VERSION, using PKG-CONFIG. (This is
480 dnl similar to Guile's 'GUILE_PROGS' macro.)
481 AC_DEFUN([GDB_GUILE_PROGRAM_NAMES], [
482 AC_CACHE_CHECK([for the absolute file name of the 'guild' command],
483 [ac_cv_guild_program_name],
484 [ac_cv_guild_program_name="`$1 --variable guild $2`"
486 # In Guile up to 2.0.11 included, guile-2.0.pc would not define
487 # the 'guild' and 'bindir' variables. In that case, try to guess
488 # what the program name is, at the risk of getting it wrong if
489 # Guile was configured with '--program-suffix' or similar.
490 if test "x$ac_cv_guild_program_name" = "x"; then
491 guile_exec_prefix="`$1 --variable exec_prefix $2`"
492 ac_cv_guild_program_name="$guile_exec_prefix/bin/guild"
496 if ! "$ac_cv_guild_program_name" --version >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then
497 AC_MSG_ERROR(['$ac_cv_guild_program_name' appears to be unusable])
500 GUILD="$ac_cv_guild_program_name"
504 dnl GDB_GUILD_TARGET_FLAG
506 dnl Compute the value of GUILD_TARGET_FLAG.
507 dnl For native builds this is empty.
508 dnl For cross builds this is --target=<host>.
509 AC_DEFUN([GDB_GUILD_TARGET_FLAG], [
510 if test "$cross_compiling" = no; then
513 GUILD_TARGET_FLAG="--target=$host"
515 AC_SUBST(GUILD_TARGET_FLAG)
518 dnl GDB_TRY_GUILD([SRC-FILE])
520 dnl We precompile the .scm files and install them with gdb, so make sure
521 dnl guild works for this host.
522 dnl The .scm files are precompiled for several reasons:
523 dnl 1) To silence Guile during gdb startup (Guile's auto-compilation output
524 dnl is unnecessarily verbose).
525 dnl 2) Make gdb developers see compilation errors/warnings during the build,
526 dnl and not leave it to later when the user runs gdb.
527 dnl 3) As a convenience for the user, so that one copy of the files is built
528 dnl instead of one copy per user.
530 dnl Make sure guild can handle this host by trying to compile SRC-FILE, and
531 dnl setting ac_cv_guild_ok to yes or no.
532 dnl Note that guild can handle cross-compilation.
533 dnl It could happen that guild can't handle the host, but guile would still
534 dnl work. For the time being we're conservative, and if guild doesn't work
536 AC_DEFUN([GDB_TRY_GUILD], [
537 AC_REQUIRE([GDB_GUILD_TARGET_FLAG])
538 AC_CACHE_CHECK([whether guild supports this host],
540 [echo "$ac_cv_guild_program_name compile $GUILD_TARGET_FLAG -o conftest.go $1" >&AS_MESSAGE_LOG_FD
541 if "$ac_cv_guild_program_name" compile $GUILD_TARGET_FLAG -o conftest.go "$1" >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then