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 m4_include(acx_configure_dir.m4)
9 # This gets GDB_AC_TRANSFORM.
10 m4_include(transform.m4)
12 # This gets AM_GDB_WARNINGS.
13 m4_include(../gdbsupport/warning.m4)
16 m4_include(sanitize.m4)
18 # This gets GDB_AC_SELFTEST.
19 m4_include(selftest.m4)
21 dnl gdb/configure.in uses BFD_NEED_DECLARATION, so get its definition.
22 m4_include(../bfd/bfd.m4)
24 dnl This gets the standard macros.
25 m4_include(../config/acinclude.m4)
27 dnl This gets AC_PLUGINS, needed by ACX_LARGEFILE.
28 m4_include(../config/plugins.m4)
30 dnl For ACX_LARGEFILE.
31 m4_include(../config/largefile.m4)
33 dnl For AM_SET_LEADING_DOT.
34 m4_include(../config/lead-dot.m4)
36 dnl This gets autoconf bugfixes.
37 m4_include(../config/override.m4)
39 dnl For ZW_GNU_GETTEXT_SISTER_DIR.
40 m4_include(../config/gettext-sister.m4)
42 dnl For AC_LIB_HAVE_LINKFLAGS.
43 m4_include(../config/lib-ld.m4)
44 m4_include(../config/lib-prefix.m4)
45 m4_include(../config/lib-link.m4)
47 dnl For ACX_PKGVERSION and ACX_BUGURL.
48 m4_include(../config/acx.m4)
50 dnl for TCL definitions
51 m4_include(../config/tcl.m4)
53 dnl For dependency tracking macros.
54 m4_include([../config/depstand.m4])
56 dnl For AM_LC_MESSAGES
57 m4_include([../config/lcmessage.m4])
59 dnl For AM_LANGINFO_CODESET.
60 m4_include([../config/codeset.m4])
62 m4_include([../config/iconv.m4])
64 m4_include([../config/zlib.m4])
66 m4_include([../gdbsupport/common.m4])
68 dnl For libiberty_INIT.
69 m4_include(libiberty.m4)
71 dnl For GDB_AC_PTRACE.
74 m4_include(ax_cxx_compile_stdcxx.m4)
76 m4_include([../config/ax_pthread.m4])
78 ## ----------------------------------------- ##
79 ## ANSIfy the C compiler whenever possible. ##
80 ## From Franc,ois Pinard ##
81 ## ----------------------------------------- ##
83 # Copyright (C) 1996-2020 Free Software Foundation, Inc.
85 # This program is free software; you can redistribute it and/or modify
86 # it under the terms of the GNU General Public License as published by
87 # the Free Software Foundation; either version 2, or (at your option)
90 # This program is distributed in the hope that it will be useful,
91 # but WITHOUT ANY WARRANTY; without even the implied warranty of
92 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
93 # GNU General Public License for more details.
95 # You should have received a copy of the GNU General Public License
96 # along with this program; if not, see <http://www.gnu.org/licenses/>.
100 # @defmac AC_PROG_CC_STDC
101 # @maindex PROG_CC_STDC
103 # If the C compiler in not in ANSI C mode by default, try to add an option
104 # to output variable @code{CC} to make it so. This macro tries various
105 # options that select ANSI C on some system or another. It considers the
106 # compiler to be in ANSI C mode if it handles function prototypes correctly.
108 # If you use this macro, you should check after calling it whether the C
109 # compiler has been set to accept ANSI C; if not, the shell variable
110 # @code{am_cv_prog_cc_stdc} is set to @samp{no}. If you wrote your source
111 # code in ANSI C, you can make an un-ANSIfied copy of it by using the
112 # program @code{ansi2knr}, which comes with Ghostscript.
115 AC_DEFUN([AM_PROG_CC_STDC],
116 [AC_REQUIRE([AC_PROG_CC])
117 AC_BEFORE([$0], [AC_C_INLINE])
118 AC_BEFORE([$0], [AC_C_CONST])
119 dnl Force this before AC_PROG_CPP. Some cpp's, eg on HPUX, require
120 dnl a magic option to avoid problems with ANSI preprocessor commands
122 dnl FIXME: can't do this because then AC_AIX won't work due to a
123 dnl circular dependency.
124 dnl AC_BEFORE([$0], [AC_PROG_CPP])
125 AC_MSG_CHECKING([for ${CC-cc} option to accept ANSI C])
126 AC_CACHE_VAL(am_cv_prog_cc_stdc,
127 [am_cv_prog_cc_stdc=no
129 # Don't try gcc -ansi; that turns off useful extensions and
130 # breaks some systems' header files.
132 # Ultrix and OSF/1 -std1
133 # HP-UX 10.20 and later -Ae
134 # HP-UX older versions -Aa -D_HPUX_SOURCE
135 # SVR4 -Xc -D__EXTENSIONS__
136 for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
138 CC="$ac_save_CC $ac_arg"
142 #include <sys/types.h>
143 #include <sys/stat.h>
144 /* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */
145 struct buf { int x; };
146 FILE * (*rcsopen) (struct buf *, struct stat *, int);
147 static char *e (p, i)
153 static char *f (char * (*g) (char **, int), char **p, ...)
158 s = g (p, va_arg (v,int));
162 int test (int i, double x);
163 struct s1 {int (*f) (int a);};
164 struct s2 {int (*f) (double a);};
165 int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
169 return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1];
171 [am_cv_prog_cc_stdc="$ac_arg"; break])
175 if test -z "$am_cv_prog_cc_stdc"; then
176 AC_MSG_RESULT([none needed])
178 AC_MSG_RESULT([$am_cv_prog_cc_stdc])
180 case "x$am_cv_prog_cc_stdc" in
182 *) CC="$CC $am_cv_prog_cc_stdc" ;;
186 dnl written by Guido Draheim <guidod@gmx.de>, original by Alexandre Oliva
187 dnl Version 1.3 (2001/03/02)
188 dnl source http://www.gnu.org/software/ac-archive/Miscellaneous/ac_define_dir.html
190 AC_DEFUN([AC_DEFINE_DIR], [
191 test "x$prefix" = xNONE && prefix="$ac_default_prefix"
192 test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
193 ac_define_dir=`eval echo [$]$2`
194 ac_define_dir=`eval echo [$]ac_define_dir`
196 AC_DEFINE_UNQUOTED($1, "$ac_define_dir"),
197 AC_DEFINE_UNQUOTED($1, "$ac_define_dir", $3))
200 dnl See whether we need a declaration for a function.
201 dnl The result is highly dependent on the INCLUDES passed in, so make sure
202 dnl to use a different cache variable name in this macro if it is invoked
203 dnl in a different context somewhere else.
204 dnl gcc_AC_CHECK_DECL(SYMBOL,
205 dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, INCLUDES]]])
206 AC_DEFUN([gcc_AC_CHECK_DECL],
207 [AC_MSG_CHECKING([whether $1 is declared])
208 AC_CACHE_VAL(gcc_cv_have_decl_$1,
209 [AC_TRY_COMPILE([$4],
211 char *(*pfn) = (char *(*)) $1 ;
212 #endif], eval "gcc_cv_have_decl_$1=yes", eval "gcc_cv_have_decl_$1=no")])
213 if eval "test \"`echo '$gcc_cv_have_decl_'$1`\" = yes"; then
214 AC_MSG_RESULT(yes) ; ifelse([$2], , :, [$2])
216 AC_MSG_RESULT(no) ; ifelse([$3], , :, [$3])
220 dnl Check multiple functions to see whether each needs a declaration.
221 dnl Arrange to define HAVE_DECL_<FUNCTION> to 0 or 1 as appropriate.
222 dnl gcc_AC_CHECK_DECLS(SYMBOLS,
223 dnl [ACTION-IF-NEEDED [, ACTION-IF-NOT-NEEDED [, INCLUDES]]])
224 AC_DEFUN([gcc_AC_CHECK_DECLS],
228 ac_tr_decl=HAVE_DECL_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
230 gcc_AC_CHECK_DECL($ac_func,
231 [AC_DEFINE_UNQUOTED($ac_tr_decl, 1) $2],
232 [AC_DEFINE_UNQUOTED($ac_tr_decl, 0) $3],
233 dnl It is possible that the include files passed in here are local headers
234 dnl which supply a backup declaration for the relevant prototype based on
235 dnl the definition of (or lack of) the HAVE_DECL_ macro. If so, this test
236 dnl will always return success. E.g. see libiberty.h's handling of
237 dnl `basename'. To avoid this, we define the relevant HAVE_DECL_ macro to
238 dnl 1 so that any local headers used do not provide their own prototype
239 dnl during this test.
241 #define $ac_tr_decl 1
245 dnl Automatically generate config.h entries via autoheader.
247 patsubst(translit([$1], [a-z], [A-Z]), [\w+],
248 [AC_DEFINE([HAVE_DECL_\&], 1,
249 [Define to 1 if we found this declaration otherwise define to 0.])])dnl
253 dnl Find the location of the private Tcl headers
254 dnl When Tcl is installed, this is TCL_INCLUDE_SPEC/tcl-private/generic
255 dnl When Tcl is in the build tree, this is not needed.
257 dnl Note: you must use first use SC_LOAD_TCLCONFIG!
258 AC_DEFUN([CY_AC_TCL_PRIVATE_HEADERS], [
259 AC_MSG_CHECKING([for Tcl private headers])
261 dir=`echo ${TCL_INCLUDE_SPEC}/tcl-private/generic | sed -e s/-I//`
262 if test -f ${dir}/tclInt.h ; then
266 if test x"${private_dir}" = x; then
267 AC_ERROR(could not find private Tcl headers)
269 TCL_PRIVATE_INCLUDE="-I${private_dir}"
270 AC_MSG_RESULT(${private_dir})
274 dnl Find the location of the private Tk headers
275 dnl When Tk is installed, this is TK_INCLUDE_SPEC/tk-private/generic
276 dnl When Tk is in the build tree, this not needed.
278 dnl Note: you must first use SC_LOAD_TKCONFIG
279 AC_DEFUN([CY_AC_TK_PRIVATE_HEADERS], [
280 AC_MSG_CHECKING([for Tk private headers])
282 dir=`echo ${TK_INCLUDE_SPEC}/tk-private/generic | sed -e s/-I//`
283 if test -f ${dir}/tkInt.h; then
287 if test x"${private_dir}" = x; then
288 AC_ERROR(could not find Tk private headers)
290 TK_PRIVATE_INCLUDE="-I${private_dir}"
291 AC_MSG_RESULT(${private_dir})
295 dnl GDB_AC_DEFINE_RELOCATABLE([VARIABLE], [ARG-NAME], [SHELL-VARIABLE])
296 dnl For use in processing directory values for --with-foo.
297 dnl If the path in SHELL_VARIABLE is relative to the prefix, then the
298 dnl result is relocatable, then this will define the C macro
299 dnl VARIABLE_RELOCATABLE to 1; otherwise it is defined as 0.
300 AC_DEFUN([GDB_AC_DEFINE_RELOCATABLE], [
301 if test "x$exec_prefix" = xNONE || test "x$exec_prefix" = 'x${prefix}'; then
302 if test "x$prefix" = xNONE; then
303 test_prefix=/usr/local
308 test_prefix=$exec_prefix
312 "${test_prefix}"|"${test_prefix}/"*|\
313 '${exec_prefix}'|'${exec_prefix}/'*)
317 AC_DEFINE_UNQUOTED([$1]_RELOCATABLE, $value, [Define if the $2 directory should be relocated when GDB is moved.])
320 dnl GDB_AC_WITH_DIR([VARIABLE], [ARG-NAME], [HELP], [DEFAULT])
321 dnl Add a new --with option that defines a directory.
322 dnl The result is stored in VARIABLE. AC_DEFINE_DIR is called
323 dnl on this variable, as is AC_SUBST.
324 dnl ARG-NAME is the base name of the argument (without "--with").
325 dnl HELP is the help text to use.
326 dnl If the user's choice is relative to the prefix, then the
327 dnl result is relocatable, then this will define the C macro
328 dnl VARIABLE_RELOCATABLE to 1; otherwise it is defined as 0.
329 dnl DEFAULT is the default value, which is used if the user
330 dnl does not specify the argument.
331 AC_DEFUN([GDB_AC_WITH_DIR], [
332 AC_ARG_WITH([$2], AS_HELP_STRING([--with-][$2][=PATH], [$3]), [
333 [$1]=$withval], [[$1]=[$4]])
334 AC_DEFINE_DIR([$1], [$1], [$3])
336 GDB_AC_DEFINE_RELOCATABLE([$1], [$2], ${ac_define_dir})
339 dnl GDB_AC_CHECK_BFD([MESSAGE], [CV], [CODE], [HEADER])
340 dnl Check whether BFD provides a feature.
341 dnl MESSAGE is the "checking" message to display.
342 dnl CV is the name of the cache variable where the result is stored.
343 dnl The result will be "yes" or "no".
344 dnl CODE is some code to compile that checks for the feature.
345 dnl A link test is run.
346 dnl HEADER is the name of an extra BFD header to include.
347 AC_DEFUN([GDB_AC_CHECK_BFD], [
351 # Put the old CFLAGS/LDFLAGS last, in case the user's (C|LD)FLAGS
352 # points somewhere with bfd, with -I/foo/lib and -L/foo/lib. We
353 # always want our bfd.
354 CFLAGS="-I${srcdir}/../include -I../bfd -I${srcdir}/../bfd $CFLAGS"
355 ZLIBDIR=`echo $zlibdir | sed 's,\$(top_builddir)/,,g'`
356 LDFLAGS="-L../bfd -L../libiberty $ZLIBDIR $LDFLAGS"
357 intl=`echo $LIBINTL | sed 's,${top_builddir}/,,g'`
358 LIBS="-lbfd -liberty -lz $intl $LIBS"
359 AC_CACHE_CHECK([$1], [$2],
365 [return $3;], [[$2]=yes], [[$2]=no])])
370 dnl GDB_GUILE_PROGRAM_NAMES([PKG-CONFIG], [VERSION])
372 dnl Define and substitute 'GUILD' to contain the absolute file name of
373 dnl the 'guild' command for VERSION, using PKG-CONFIG. (This is
374 dnl similar to Guile's 'GUILE_PROGS' macro.)
375 AC_DEFUN([GDB_GUILE_PROGRAM_NAMES], [
376 AC_CACHE_CHECK([for the absolute file name of the 'guild' command],
377 [ac_cv_guild_program_name],
378 [ac_cv_guild_program_name="`$1 --variable guild $2`"
380 # In Guile up to 2.0.11 included, guile-2.0.pc would not define
381 # the 'guild' and 'bindir' variables. In that case, try to guess
382 # what the program name is, at the risk of getting it wrong if
383 # Guile was configured with '--program-suffix' or similar.
384 if test "x$ac_cv_guild_program_name" = "x"; then
385 guile_exec_prefix="`$1 --variable exec_prefix $2`"
386 ac_cv_guild_program_name="$guile_exec_prefix/bin/guild"
390 if ! "$ac_cv_guild_program_name" --version >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then
391 AC_MSG_ERROR(['$ac_cv_guild_program_name' appears to be unusable])
394 GUILD="$ac_cv_guild_program_name"
398 dnl GDB_GUILD_TARGET_FLAG
400 dnl Compute the value of GUILD_TARGET_FLAG.
401 dnl For native builds this is empty.
402 dnl For cross builds this is --target=<host>.
403 AC_DEFUN([GDB_GUILD_TARGET_FLAG], [
404 if test "$cross_compiling" = no; then
407 GUILD_TARGET_FLAG="--target=$host"
409 AC_SUBST(GUILD_TARGET_FLAG)
412 dnl GDB_TRY_GUILD([SRC-FILE])
414 dnl We precompile the .scm files and install them with gdb, so make sure
415 dnl guild works for this host.
416 dnl The .scm files are precompiled for several reasons:
417 dnl 1) To silence Guile during gdb startup (Guile's auto-compilation output
418 dnl is unnecessarily verbose).
419 dnl 2) Make gdb developers see compilation errors/warnings during the build,
420 dnl and not leave it to later when the user runs gdb.
421 dnl 3) As a convenience for the user, so that one copy of the files is built
422 dnl instead of one copy per user.
424 dnl Make sure guild can handle this host by trying to compile SRC-FILE, and
425 dnl setting ac_cv_guild_ok to yes or no.
426 dnl Note that guild can handle cross-compilation.
427 dnl It could happen that guild can't handle the host, but guile would still
428 dnl work. For the time being we're conservative, and if guild doesn't work
430 AC_DEFUN([GDB_TRY_GUILD], [
431 AC_REQUIRE([GDB_GUILD_TARGET_FLAG])
432 AC_CACHE_CHECK([whether guild supports this host],
434 [echo "$ac_cv_guild_program_name compile $GUILD_TARGET_FLAG -o conftest.go $1" >&AS_MESSAGE_LOG_FD
435 if "$ac_cv_guild_program_name" compile $GUILD_TARGET_FLAG -o conftest.go "$1" >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then