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(../gdbsupport/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 GCC_ENABLE.
28 sinclude(../config/enable.m4)
30 dnl This gets AC_PLUGINS, needed by ACX_LARGEFILE.
31 m4_include(../config/plugins.m4)
33 dnl For ACX_LARGEFILE.
34 m4_include(../config/largefile.m4)
36 dnl For AM_SET_LEADING_DOT.
37 m4_include(../config/lead-dot.m4)
39 dnl This gets autoconf bugfixes.
40 m4_include(../config/override.m4)
42 dnl For ZW_GNU_GETTEXT_SISTER_DIR.
43 m4_include(../config/gettext-sister.m4)
45 dnl For AC_LIB_HAVE_LINKFLAGS.
46 m4_include(../config/lib-ld.m4)
47 m4_include(../config/lib-prefix.m4)
48 m4_include(../config/lib-link.m4)
50 dnl For ACX_PKGVERSION and ACX_BUGURL.
51 m4_include(../config/acx.m4)
53 dnl for TCL definitions
54 m4_include(../config/tcl.m4)
56 dnl For dependency tracking macros.
57 m4_include([../config/depstand.m4])
59 dnl For AM_LC_MESSAGES
60 m4_include([../config/lcmessage.m4])
62 dnl For AM_LANGINFO_CODESET.
63 m4_include([../config/codeset.m4])
65 m4_include([../config/iconv.m4])
67 m4_include([../config/zlib.m4])
69 m4_include([../gdbsupport/common.m4])
71 dnl For libiberty_INIT.
72 m4_include(libiberty.m4)
74 dnl For GDB_AC_PTRACE.
77 m4_include(ax_cxx_compile_stdcxx.m4)
79 m4_include([../config/ax_pthread.m4])
81 ## ----------------------------------------- ##
82 ## ANSIfy the C compiler whenever possible. ##
83 ## From Franc,ois Pinard ##
84 ## ----------------------------------------- ##
86 # Copyright (C) 1996-2020 Free Software Foundation, Inc.
88 # This program is free software; you can redistribute it and/or modify
89 # it under the terms of the GNU General Public License as published by
90 # the Free Software Foundation; either version 2, or (at your option)
93 # This program is distributed in the hope that it will be useful,
94 # but WITHOUT ANY WARRANTY; without even the implied warranty of
95 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
96 # GNU General Public License for more details.
98 # You should have received a copy of the GNU General Public License
99 # along with this program; if not, see <http://www.gnu.org/licenses/>.
103 # @defmac AC_PROG_CC_STDC
104 # @maindex PROG_CC_STDC
106 # If the C compiler in not in ANSI C mode by default, try to add an option
107 # to output variable @code{CC} to make it so. This macro tries various
108 # options that select ANSI C on some system or another. It considers the
109 # compiler to be in ANSI C mode if it handles function prototypes correctly.
111 # If you use this macro, you should check after calling it whether the C
112 # compiler has been set to accept ANSI C; if not, the shell variable
113 # @code{am_cv_prog_cc_stdc} is set to @samp{no}. If you wrote your source
114 # code in ANSI C, you can make an un-ANSIfied copy of it by using the
115 # program @code{ansi2knr}, which comes with Ghostscript.
118 AC_DEFUN([AM_PROG_CC_STDC],
119 [AC_REQUIRE([AC_PROG_CC])
120 AC_BEFORE([$0], [AC_C_INLINE])
121 AC_BEFORE([$0], [AC_C_CONST])
122 dnl Force this before AC_PROG_CPP. Some cpp's, eg on HPUX, require
123 dnl a magic option to avoid problems with ANSI preprocessor commands
125 dnl FIXME: can't do this because then AC_AIX won't work due to a
126 dnl circular dependency.
127 dnl AC_BEFORE([$0], [AC_PROG_CPP])
128 AC_MSG_CHECKING([for ${CC-cc} option to accept ANSI C])
129 AC_CACHE_VAL(am_cv_prog_cc_stdc,
130 [am_cv_prog_cc_stdc=no
132 # Don't try gcc -ansi; that turns off useful extensions and
133 # breaks some systems' header files.
135 # Ultrix and OSF/1 -std1
136 # HP-UX 10.20 and later -Ae
137 # HP-UX older versions -Aa -D_HPUX_SOURCE
138 # SVR4 -Xc -D__EXTENSIONS__
139 for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
141 CC="$ac_save_CC $ac_arg"
145 #include <sys/types.h>
146 #include <sys/stat.h>
147 /* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */
148 struct buf { int x; };
149 FILE * (*rcsopen) (struct buf *, struct stat *, int);
150 static char *e (p, i)
156 static char *f (char * (*g) (char **, int), char **p, ...)
161 s = g (p, va_arg (v,int));
165 int test (int i, double x);
166 struct s1 {int (*f) (int a);};
167 struct s2 {int (*f) (double a);};
168 int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
172 return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1];
174 [am_cv_prog_cc_stdc="$ac_arg"; break])
178 if test -z "$am_cv_prog_cc_stdc"; then
179 AC_MSG_RESULT([none needed])
181 AC_MSG_RESULT([$am_cv_prog_cc_stdc])
183 case "x$am_cv_prog_cc_stdc" in
185 *) CC="$CC $am_cv_prog_cc_stdc" ;;
189 dnl written by Guido Draheim <guidod@gmx.de>, original by Alexandre Oliva
190 dnl Version 1.3 (2001/03/02)
191 dnl source http://www.gnu.org/software/ac-archive/Miscellaneous/ac_define_dir.html
193 AC_DEFUN([AC_DEFINE_DIR], [
194 test "x$prefix" = xNONE && prefix="$ac_default_prefix"
195 test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
196 ac_define_dir=`eval echo [$]$2`
197 ac_define_dir=`eval echo [$]ac_define_dir`
199 AC_DEFINE_UNQUOTED($1, "$ac_define_dir"),
200 AC_DEFINE_UNQUOTED($1, "$ac_define_dir", $3))
203 dnl See whether we need a declaration for a function.
204 dnl The result is highly dependent on the INCLUDES passed in, so make sure
205 dnl to use a different cache variable name in this macro if it is invoked
206 dnl in a different context somewhere else.
207 dnl gcc_AC_CHECK_DECL(SYMBOL,
208 dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, INCLUDES]]])
209 AC_DEFUN([gcc_AC_CHECK_DECL],
210 [AC_MSG_CHECKING([whether $1 is declared])
211 AC_CACHE_VAL(gcc_cv_have_decl_$1,
212 [AC_TRY_COMPILE([$4],
214 char *(*pfn) = (char *(*)) $1 ;
215 #endif], eval "gcc_cv_have_decl_$1=yes", eval "gcc_cv_have_decl_$1=no")])
216 if eval "test \"`echo '$gcc_cv_have_decl_'$1`\" = yes"; then
217 AC_MSG_RESULT(yes) ; ifelse([$2], , :, [$2])
219 AC_MSG_RESULT(no) ; ifelse([$3], , :, [$3])
223 dnl Check multiple functions to see whether each needs a declaration.
224 dnl Arrange to define HAVE_DECL_<FUNCTION> to 0 or 1 as appropriate.
225 dnl gcc_AC_CHECK_DECLS(SYMBOLS,
226 dnl [ACTION-IF-NEEDED [, ACTION-IF-NOT-NEEDED [, INCLUDES]]])
227 AC_DEFUN([gcc_AC_CHECK_DECLS],
231 ac_tr_decl=HAVE_DECL_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
233 gcc_AC_CHECK_DECL($ac_func,
234 [AC_DEFINE_UNQUOTED($ac_tr_decl, 1) $2],
235 [AC_DEFINE_UNQUOTED($ac_tr_decl, 0) $3],
236 dnl It is possible that the include files passed in here are local headers
237 dnl which supply a backup declaration for the relevant prototype based on
238 dnl the definition of (or lack of) the HAVE_DECL_ macro. If so, this test
239 dnl will always return success. E.g. see libiberty.h's handling of
240 dnl `basename'. To avoid this, we define the relevant HAVE_DECL_ macro to
241 dnl 1 so that any local headers used do not provide their own prototype
242 dnl during this test.
244 #define $ac_tr_decl 1
248 dnl Automatically generate config.h entries via autoheader.
250 patsubst(translit([$1], [a-z], [A-Z]), [\w+],
251 [AC_DEFINE([HAVE_DECL_\&], 1,
252 [Define to 1 if we found this declaration otherwise define to 0.])])dnl
256 dnl Find the location of the private Tcl headers
257 dnl When Tcl is installed, this is TCL_INCLUDE_SPEC/tcl-private/generic
258 dnl When Tcl is in the build tree, this is not needed.
260 dnl Note: you must use first use SC_LOAD_TCLCONFIG!
261 AC_DEFUN([CY_AC_TCL_PRIVATE_HEADERS], [
262 AC_MSG_CHECKING([for Tcl private headers])
264 dir=`echo ${TCL_INCLUDE_SPEC}/tcl-private/generic | sed -e s/-I//`
265 if test -f ${dir}/tclInt.h ; then
269 if test x"${private_dir}" = x; then
270 AC_ERROR(could not find private Tcl headers)
272 TCL_PRIVATE_INCLUDE="-I${private_dir}"
273 AC_MSG_RESULT(${private_dir})
277 dnl Find the location of the private Tk headers
278 dnl When Tk is installed, this is TK_INCLUDE_SPEC/tk-private/generic
279 dnl When Tk is in the build tree, this not needed.
281 dnl Note: you must first use SC_LOAD_TKCONFIG
282 AC_DEFUN([CY_AC_TK_PRIVATE_HEADERS], [
283 AC_MSG_CHECKING([for Tk private headers])
285 dir=`echo ${TK_INCLUDE_SPEC}/tk-private/generic | sed -e s/-I//`
286 if test -f ${dir}/tkInt.h; then
290 if test x"${private_dir}" = x; then
291 AC_ERROR(could not find Tk private headers)
293 TK_PRIVATE_INCLUDE="-I${private_dir}"
294 AC_MSG_RESULT(${private_dir})
298 dnl GDB_AC_DEFINE_RELOCATABLE([VARIABLE], [ARG-NAME], [SHELL-VARIABLE])
299 dnl For use in processing directory values for --with-foo.
300 dnl If the path in SHELL_VARIABLE is relative to the prefix, then the
301 dnl result is relocatable, then this will define the C macro
302 dnl VARIABLE_RELOCATABLE to 1; otherwise it is defined as 0.
303 AC_DEFUN([GDB_AC_DEFINE_RELOCATABLE], [
304 if test "x$exec_prefix" = xNONE || test "x$exec_prefix" = 'x${prefix}'; then
305 if test "x$prefix" = xNONE; then
306 test_prefix=/usr/local
311 test_prefix=$exec_prefix
315 "${test_prefix}"|"${test_prefix}/"*|\
316 '${exec_prefix}'|'${exec_prefix}/'*)
320 AC_DEFINE_UNQUOTED([$1]_RELOCATABLE, $value, [Define if the $2 directory should be relocated when GDB is moved.])
323 dnl GDB_AC_WITH_DIR([VARIABLE], [ARG-NAME], [HELP], [DEFAULT])
324 dnl Add a new --with option that defines a directory.
325 dnl The result is stored in VARIABLE. AC_DEFINE_DIR is called
326 dnl on this variable, as is AC_SUBST.
327 dnl ARG-NAME is the base name of the argument (without "--with").
328 dnl HELP is the help text to use.
329 dnl If the user's choice is relative to the prefix, then the
330 dnl result is relocatable, then this will define the C macro
331 dnl VARIABLE_RELOCATABLE to 1; otherwise it is defined as 0.
332 dnl DEFAULT is the default value, which is used if the user
333 dnl does not specify the argument.
334 AC_DEFUN([GDB_AC_WITH_DIR], [
335 AC_ARG_WITH([$2], AS_HELP_STRING([--with-][$2][=PATH], [$3]), [
336 [$1]=$withval], [[$1]=[$4]])
337 AC_DEFINE_DIR([$1], [$1], [$3])
339 GDB_AC_DEFINE_RELOCATABLE([$1], [$2], ${ac_define_dir})
342 dnl GDB_AC_CHECK_BFD([MESSAGE], [CV], [CODE], [HEADER])
343 dnl Check whether BFD provides a feature.
344 dnl MESSAGE is the "checking" message to display.
345 dnl CV is the name of the cache variable where the result is stored.
346 dnl The result will be "yes" or "no".
347 dnl CODE is some code to compile that checks for the feature.
348 dnl A link test is run.
349 dnl HEADER is the name of an extra BFD header to include.
350 AC_DEFUN([GDB_AC_CHECK_BFD], [
354 # Put the old CFLAGS/LDFLAGS last, in case the user's (C|LD)FLAGS
355 # points somewhere with bfd, with -I/foo/lib and -L/foo/lib. We
356 # always want our bfd.
357 CFLAGS="-I${srcdir}/../include -I../bfd -I${srcdir}/../bfd $CFLAGS"
358 ZLIBDIR=`echo $zlibdir | sed 's,\$(top_builddir)/,,g'`
359 LDFLAGS="-L../bfd -L../libiberty $ZLIBDIR $LDFLAGS"
360 intl=`echo $LIBINTL | sed 's,${top_builddir}/,,g'`
361 LIBS="-lbfd -liberty -lz $intl $LIBS"
362 AC_CACHE_CHECK([$1], [$2],
368 [return $3;], [[$2]=yes], [[$2]=no])])
373 dnl GDB_GUILE_PROGRAM_NAMES([PKG-CONFIG], [VERSION])
375 dnl Define and substitute 'GUILD' to contain the absolute file name of
376 dnl the 'guild' command for VERSION, using PKG-CONFIG. (This is
377 dnl similar to Guile's 'GUILE_PROGS' macro.)
378 AC_DEFUN([GDB_GUILE_PROGRAM_NAMES], [
379 AC_CACHE_CHECK([for the absolute file name of the 'guild' command],
380 [ac_cv_guild_program_name],
381 [ac_cv_guild_program_name="`$1 --variable guild $2`"
383 # In Guile up to 2.0.11 included, guile-2.0.pc would not define
384 # the 'guild' and 'bindir' variables. In that case, try to guess
385 # what the program name is, at the risk of getting it wrong if
386 # Guile was configured with '--program-suffix' or similar.
387 if test "x$ac_cv_guild_program_name" = "x"; then
388 guile_exec_prefix="`$1 --variable exec_prefix $2`"
389 ac_cv_guild_program_name="$guile_exec_prefix/bin/guild"
393 if ! "$ac_cv_guild_program_name" --version >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then
394 AC_MSG_ERROR(['$ac_cv_guild_program_name' appears to be unusable])
397 GUILD="$ac_cv_guild_program_name"
401 dnl GDB_GUILD_TARGET_FLAG
403 dnl Compute the value of GUILD_TARGET_FLAG.
404 dnl For native builds this is empty.
405 dnl For cross builds this is --target=<host>.
406 AC_DEFUN([GDB_GUILD_TARGET_FLAG], [
407 if test "$cross_compiling" = no; then
410 GUILD_TARGET_FLAG="--target=$host"
412 AC_SUBST(GUILD_TARGET_FLAG)
415 dnl GDB_TRY_GUILD([SRC-FILE])
417 dnl We precompile the .scm files and install them with gdb, so make sure
418 dnl guild works for this host.
419 dnl The .scm files are precompiled for several reasons:
420 dnl 1) To silence Guile during gdb startup (Guile's auto-compilation output
421 dnl is unnecessarily verbose).
422 dnl 2) Make gdb developers see compilation errors/warnings during the build,
423 dnl and not leave it to later when the user runs gdb.
424 dnl 3) As a convenience for the user, so that one copy of the files is built
425 dnl instead of one copy per user.
427 dnl Make sure guild can handle this host by trying to compile SRC-FILE, and
428 dnl setting ac_cv_guild_ok to yes or no.
429 dnl Note that guild can handle cross-compilation.
430 dnl It could happen that guild can't handle the host, but guile would still
431 dnl work. For the time being we're conservative, and if guild doesn't work
433 AC_DEFUN([GDB_TRY_GUILD], [
434 AC_REQUIRE([GDB_GUILD_TARGET_FLAG])
435 AC_CACHE_CHECK([whether guild supports this host],
437 [echo "$ac_cv_guild_program_name compile $GUILD_TARGET_FLAG -o conftest.go $1" >&AS_MESSAGE_LOG_FD
438 if "$ac_cv_guild_program_name" compile $GUILD_TARGET_FLAG -o conftest.go "$1" >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD; then