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 # This gets AM_GDB_WARNINGS.
18 dnl gdb/configure.in uses BFD_NEED_DECLARATION, so get its definition.
19 sinclude(../bfd/bfd.m4)
21 dnl This gets the standard macros.
22 sinclude(../config/acinclude.m4)
24 dnl This gets AC_PLUGINS, needed by ACX_LARGEFILE.
25 sinclude(../config/plugins.m4)
27 dnl For ACX_LARGEFILE.
28 sinclude(../config/largefile.m4)
30 dnl For AM_SET_LEADING_DOT.
31 sinclude(../config/lead-dot.m4)
33 dnl This gets autoconf bugfixes.
34 sinclude(../config/override.m4)
36 dnl For ZW_GNU_GETTEXT_SISTER_DIR.
37 sinclude(../config/gettext-sister.m4)
39 dnl For AC_LIB_HAVE_LINKFLAGS.
40 sinclude(../config/lib-ld.m4)
41 sinclude(../config/lib-prefix.m4)
42 sinclude(../config/lib-link.m4)
44 dnl For ACX_PKGVERSION and ACX_BUGURL.
45 sinclude(../config/acx.m4)
47 dnl for TCL definitions
48 sinclude(../config/tcl.m4)
50 dnl For dependency tracking macros.
51 sinclude([../config/depstand.m4])
53 dnl For AM_LC_MESSAGES
54 sinclude([../config/lcmessage.m4])
56 dnl For AM_LANGINFO_CODESET.
57 sinclude([../config/codeset.m4])
59 sinclude([../config/iconv.m4])
61 sinclude([../config/zlib.m4])
63 m4_include([common/common.m4])
65 dnl For libiberty_INIT.
66 m4_include(libiberty.m4)
68 dnl For --enable-build-with-cxx and COMPILER.
69 m4_include(build-with-cxx.m4)
71 dnl For GDB_AC_PTRACE.
74 ## ----------------------------------------- ##
75 ## ANSIfy the C compiler whenever possible. ##
76 ## From Franc,ois Pinard ##
77 ## ----------------------------------------- ##
79 # Copyright (C) 1996-2016 Free Software Foundation, Inc.
81 # This program is free software; you can redistribute it and/or modify
82 # it under the terms of the GNU General Public License as published by
83 # the Free Software Foundation; either version 2, or (at your option)
86 # This program is distributed in the hope that it will be useful,
87 # but WITHOUT ANY WARRANTY; without even the implied warranty of
88 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
89 # GNU General Public License for more details.
91 # You should have received a copy of the GNU General Public License
92 # along with this program; if not, see <http://www.gnu.org/licenses/>.
96 # @defmac AC_PROG_CC_STDC
97 # @maindex PROG_CC_STDC
99 # If the C compiler in not in ANSI C mode by default, try to add an option
100 # to output variable @code{CC} to make it so. This macro tries various
101 # options that select ANSI C on some system or another. It considers the
102 # compiler to be in ANSI C mode if it handles function prototypes correctly.
104 # If you use this macro, you should check after calling it whether the C
105 # compiler has been set to accept ANSI C; if not, the shell variable
106 # @code{am_cv_prog_cc_stdc} is set to @samp{no}. If you wrote your source
107 # code in ANSI C, you can make an un-ANSIfied copy of it by using the
108 # program @code{ansi2knr}, which comes with Ghostscript.
111 AC_DEFUN([AM_PROG_CC_STDC],
112 [AC_REQUIRE([AC_PROG_CC])
113 AC_BEFORE([$0], [AC_C_INLINE])
114 AC_BEFORE([$0], [AC_C_CONST])
115 dnl Force this before AC_PROG_CPP. Some cpp's, eg on HPUX, require
116 dnl a magic option to avoid problems with ANSI preprocessor commands
118 dnl FIXME: can't do this because then AC_AIX won't work due to a
119 dnl circular dependency.
120 dnl AC_BEFORE([$0], [AC_PROG_CPP])
121 AC_MSG_CHECKING([for ${CC-cc} option to accept ANSI C])
122 AC_CACHE_VAL(am_cv_prog_cc_stdc,
123 [am_cv_prog_cc_stdc=no
125 # Don't try gcc -ansi; that turns off useful extensions and
126 # breaks some systems' header files.
128 # Ultrix and OSF/1 -std1
129 # HP-UX 10.20 and later -Ae
130 # HP-UX older versions -Aa -D_HPUX_SOURCE
131 # SVR4 -Xc -D__EXTENSIONS__
132 for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
134 CC="$ac_save_CC $ac_arg"
138 #include <sys/types.h>
139 #include <sys/stat.h>
140 /* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */
141 struct buf { int x; };
142 FILE * (*rcsopen) (struct buf *, struct stat *, int);
143 static char *e (p, i)
149 static char *f (char * (*g) (char **, int), char **p, ...)
154 s = g (p, va_arg (v,int));
158 int test (int i, double x);
159 struct s1 {int (*f) (int a);};
160 struct s2 {int (*f) (double a);};
161 int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
165 return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1];
167 [am_cv_prog_cc_stdc="$ac_arg"; break])
171 if test -z "$am_cv_prog_cc_stdc"; then
172 AC_MSG_RESULT([none needed])
174 AC_MSG_RESULT([$am_cv_prog_cc_stdc])
176 case "x$am_cv_prog_cc_stdc" in
178 *) CC="$CC $am_cv_prog_cc_stdc" ;;
182 dnl written by Guido Draheim <guidod@gmx.de>, original by Alexandre Oliva
183 dnl Version 1.3 (2001/03/02)
184 dnl source http://www.gnu.org/software/ac-archive/Miscellaneous/ac_define_dir.html
186 AC_DEFUN([AC_DEFINE_DIR], [
187 test "x$prefix" = xNONE && prefix="$ac_default_prefix"
188 test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
189 ac_define_dir=`eval echo [$]$2`
190 ac_define_dir=`eval echo [$]ac_define_dir`
192 AC_DEFINE_UNQUOTED($1, "$ac_define_dir"),
193 AC_DEFINE_UNQUOTED($1, "$ac_define_dir", $3))
196 dnl See whether we need a declaration for a function.
197 dnl The result is highly dependent on the INCLUDES passed in, so make sure
198 dnl to use a different cache variable name in this macro if it is invoked
199 dnl in a different context somewhere else.
200 dnl gcc_AC_CHECK_DECL(SYMBOL,
201 dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, INCLUDES]]])
202 AC_DEFUN([gcc_AC_CHECK_DECL],
203 [AC_MSG_CHECKING([whether $1 is declared])
204 AC_CACHE_VAL(gcc_cv_have_decl_$1,
205 [AC_TRY_COMPILE([$4],
207 char *(*pfn) = (char *(*)) $1 ;
208 #endif], eval "gcc_cv_have_decl_$1=yes", eval "gcc_cv_have_decl_$1=no")])
209 if eval "test \"`echo '$gcc_cv_have_decl_'$1`\" = yes"; then
210 AC_MSG_RESULT(yes) ; ifelse([$2], , :, [$2])
212 AC_MSG_RESULT(no) ; ifelse([$3], , :, [$3])
216 dnl Check multiple functions to see whether each needs a declaration.
217 dnl Arrange to define HAVE_DECL_<FUNCTION> to 0 or 1 as appropriate.
218 dnl gcc_AC_CHECK_DECLS(SYMBOLS,
219 dnl [ACTION-IF-NEEDED [, ACTION-IF-NOT-NEEDED [, INCLUDES]]])
220 AC_DEFUN([gcc_AC_CHECK_DECLS],
224 ac_tr_decl=HAVE_DECL_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
226 gcc_AC_CHECK_DECL($ac_func,
227 [AC_DEFINE_UNQUOTED($ac_tr_decl, 1) $2],
228 [AC_DEFINE_UNQUOTED($ac_tr_decl, 0) $3],
229 dnl It is possible that the include files passed in here are local headers
230 dnl which supply a backup declaration for the relevant prototype based on
231 dnl the definition of (or lack of) the HAVE_DECL_ macro. If so, this test
232 dnl will always return success. E.g. see libiberty.h's handling of
233 dnl `basename'. To avoid this, we define the relevant HAVE_DECL_ macro to
234 dnl 1 so that any local headers used do not provide their own prototype
235 dnl during this test.
237 #define $ac_tr_decl 1
241 dnl Automatically generate config.h entries via autoheader.
243 patsubst(translit([$1], [a-z], [A-Z]), [\w+],
244 [AC_DEFINE([HAVE_DECL_\&], 1,
245 [Define to 1 if we found this declaration otherwise define to 0.])])dnl
249 dnl Find the location of the private Tcl headers
250 dnl When Tcl is installed, this is TCL_INCLUDE_SPEC/tcl-private/generic
251 dnl When Tcl is in the build tree, this is not needed.
253 dnl Note: you must use first use SC_LOAD_TCLCONFIG!
254 AC_DEFUN([CY_AC_TCL_PRIVATE_HEADERS], [
255 AC_MSG_CHECKING([for Tcl private headers])
257 dir=`echo ${TCL_INCLUDE_SPEC}/tcl-private/generic | sed -e s/-I//`
258 if test -f ${dir}/tclInt.h ; then
262 if test x"${private_dir}" = x; then
263 AC_ERROR(could not find private Tcl headers)
265 TCL_PRIVATE_INCLUDE="-I${private_dir}"
266 AC_MSG_RESULT(${private_dir})
270 dnl Find the location of the private Tk headers
271 dnl When Tk is installed, this is TK_INCLUDE_SPEC/tk-private/generic
272 dnl When Tk is in the build tree, this not needed.
274 dnl Note: you must first use SC_LOAD_TKCONFIG
275 AC_DEFUN([CY_AC_TK_PRIVATE_HEADERS], [
276 AC_MSG_CHECKING([for Tk private headers])
278 dir=`echo ${TK_INCLUDE_SPEC}/tk-private/generic | sed -e s/-I//`
279 if test -f ${dir}/tkInt.h; then
283 if test x"${private_dir}" = x; then
284 AC_ERROR(could not find Tk private headers)
286 TK_PRIVATE_INCLUDE="-I${private_dir}"
287 AC_MSG_RESULT(${private_dir})
291 dnl GDB_AC_DEFINE_RELOCATABLE([VARIABLE], [ARG-NAME], [SHELL-VARIABLE])
292 dnl For use in processing directory values for --with-foo.
293 dnl If the path in SHELL_VARIABLE is relative to the prefix, then the
294 dnl result is relocatable, then this will define the C macro
295 dnl VARIABLE_RELOCATABLE to 1; otherwise it is defined as 0.
296 AC_DEFUN([GDB_AC_DEFINE_RELOCATABLE], [
297 if test "x$exec_prefix" = xNONE || test "x$exec_prefix" = 'x${prefix}'; then
298 if test "x$prefix" = xNONE; then
299 test_prefix=/usr/local
304 test_prefix=$exec_prefix
308 "${test_prefix}"|"${test_prefix}/"*|\
309 '${exec_prefix}'|'${exec_prefix}/'*)
313 AC_DEFINE_UNQUOTED([$1]_RELOCATABLE, $value, [Define if the $2 directory should be relocated when GDB is moved.])
316 dnl GDB_AC_WITH_DIR([VARIABLE], [ARG-NAME], [HELP], [DEFAULT])
317 dnl Add a new --with option that defines a directory.
318 dnl The result is stored in VARIABLE. AC_DEFINE_DIR is called
319 dnl on this variable, as is AC_SUBST.
320 dnl ARG-NAME is the base name of the argument (without "--with").
321 dnl HELP is the help text to use.
322 dnl If the user's choice is relative to the prefix, then the
323 dnl result is relocatable, then this will define the C macro
324 dnl VARIABLE_RELOCATABLE to 1; otherwise it is defined as 0.
325 dnl DEFAULT is the default value, which is used if the user
326 dnl does not specify the argument.
327 AC_DEFUN([GDB_AC_WITH_DIR], [
328 AC_ARG_WITH([$2], AS_HELP_STRING([--with-][$2][=PATH], [$3]), [
329 [$1]=$withval], [[$1]=[$4]])
330 AC_DEFINE_DIR([$1], [$1], [$3])
332 GDB_AC_DEFINE_RELOCATABLE([$1], [$2], ${ac_define_dir})
335 dnl GDB_AC_CHECK_BFD([MESSAGE], [CV], [CODE], [HEADER])
336 dnl Check whether BFD provides a feature.
337 dnl MESSAGE is the "checking" message to display.
338 dnl CV is the name of the cache variable where the result is stored.
339 dnl The result will be "yes" or "no".
340 dnl CODE is some code to compile that checks for the feature.
341 dnl A link test is run.
342 dnl HEADER is the name of an extra BFD header to include.
343 AC_DEFUN([GDB_AC_CHECK_BFD], [
347 # Put the old CFLAGS/LDFLAGS last, in case the user's (C|LD)FLAGS
348 # points somewhere with bfd, with -I/foo/lib and -L/foo/lib. We
349 # always want our bfd.
350 CFLAGS="-I${srcdir}/../include -I../bfd -I${srcdir}/../bfd $CFLAGS"
351 ZLIBDIR=`echo $zlibdir | sed 's,\$(top_builddir)/,,g'`
352 LDFLAGS="-L../bfd -L../libiberty $ZLIBDIR $LDFLAGS"
353 intl=`echo $LIBINTL | sed 's,${top_builddir}/,,g'`
354 LIBS="-lbfd -liberty -lz $intl $LIBS"
355 AC_CACHE_CHECK([$1], [$2],
361 [return $3;], [[$2]=yes], [[$2]=no])])
366 dnl GDB_GUILE_PROGRAM_NAMES([PKG-CONFIG], [VERSION])
368 dnl Define and substitute 'GUILD' to contain the absolute file name of
369 dnl the 'guild' command for VERSION, using PKG-CONFIG. (This is
370 dnl similar to Guile's 'GUILE_PROGS' macro.)
371 AC_DEFUN([GDB_GUILE_PROGRAM_NAMES], [
372 AC_CACHE_CHECK([for the absolute file name of the 'guild' command],
373 [ac_cv_guild_program_name],
374 [ac_cv_guild_program_name="`$1 --variable guild $2`"
376 # In Guile up to 2.0.11 included, guile-2.0.pc would not define
377 # the 'guild' and 'bindir' variables. In that case, try to guess
378 # what the program name is, at the risk of getting it wrong if
379 # Guile was configured with '--program-suffix' or similar.
380 if test "x$ac_cv_guild_program_name" = "x"; then
381 guile_exec_prefix="`$1 --variable exec_prefix $2`"
382 ac_cv_guild_program_name="$guile_exec_prefix/bin/guild"
386 if ! "$ac_cv_guild_program_name" --version >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then
387 AC_MSG_ERROR(['$ac_cv_guild_program_name' appears to be unusable])
390 GUILD="$ac_cv_guild_program_name"
394 dnl GDB_GUILD_TARGET_FLAG
396 dnl Compute the value of GUILD_TARGET_FLAG.
397 dnl For native builds this is empty.
398 dnl For cross builds this is --target=<host>.
399 AC_DEFUN([GDB_GUILD_TARGET_FLAG], [
400 if test "$cross_compiling" = no; then
403 GUILD_TARGET_FLAG="--target=$host"
405 AC_SUBST(GUILD_TARGET_FLAG)
408 dnl GDB_TRY_GUILD([SRC-FILE])
410 dnl We precompile the .scm files and install them with gdb, so make sure
411 dnl guild works for this host.
412 dnl The .scm files are precompiled for several reasons:
413 dnl 1) To silence Guile during gdb startup (Guile's auto-compilation output
414 dnl is unnecessarily verbose).
415 dnl 2) Make gdb developers see compilation errors/warnings during the build,
416 dnl and not leave it to later when the user runs gdb.
417 dnl 3) As a convenience for the user, so that one copy of the files is built
418 dnl instead of one copy per user.
420 dnl Make sure guild can handle this host by trying to compile SRC-FILE, and
421 dnl setting ac_cv_guild_ok to yes or no.
422 dnl Note that guild can handle cross-compilation.
423 dnl It could happen that guild can't handle the host, but guile would still
424 dnl work. For the time being we're conservative, and if guild doesn't work
426 AC_DEFUN([GDB_TRY_GUILD], [
427 AC_REQUIRE([GDB_GUILD_TARGET_FLAG])
428 AC_CACHE_CHECK([whether guild supports this host],
430 [echo "$ac_cv_guild_program_name compile $GUILD_TARGET_FLAG -o conftest.go $1" >&AS_MESSAGE_LOG_FD
431 if "$ac_cv_guild_program_name" compile $GUILD_TARGET_FLAG -o conftest.go "$1" >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then