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 dnl gdb/configure.in uses BFD_NEED_DECLARATION, so get its definition.
5 sinclude(../bfd/bfd.m4)
7 dnl This gets the standard macros
8 sinclude(../config/acinclude.m4)
10 dnl This gets autoconf bugfixes
11 sinclude(../config/override.m4)
13 sinclude(../config/gettext-sister.m4)
15 dnl For AC_LIB_HAVE_LINKFLAGS.
16 sinclude(../config/lib-ld.m4)
17 sinclude(../config/lib-prefix.m4)
18 sinclude(../config/lib-link.m4)
20 dnl For ACX_PKGVERSION and ACX_BUGURL.
21 sinclude(../config/acx.m4)
23 dnl for TCL definitions
24 sinclude(../config/tcl.m4)
26 dnl For dependency tracking macros.
27 sinclude([../config/depstand.m4])
29 dnl For AM_LC_MESSAGES
30 sinclude([../config/lcmessage.m4])
32 dnl For AM_LANGINFO_CODESET.
33 sinclude([../config/codeset.m4])
35 sinclude([../config/zlib.m4])
38 # Sometimes the native compiler is a bogus stub for gcc or /usr/ucb/cc. This
39 # makes configure think it's cross compiling. If --target wasn't used, then
40 # we can't configure, so something is wrong. We don't use the cache
41 # here cause if somebody fixes their compiler install, we want this to work.
42 AC_DEFUN([CY_AC_C_WORKS],
43 [# If we cannot compile and link a trivial program, we can't expect anything to work
44 AC_MSG_CHECKING(whether the compiler ($CC) actually works)
45 AC_TRY_COMPILE(, [/* don't need anything here */],
46 c_compiles=yes, c_compiles=no)
48 AC_TRY_LINK(, [/* don't need anything here */],
49 c_links=yes, c_links=no)
51 if test x"${c_compiles}" = x"no" ; then
52 AC_MSG_ERROR(the native compiler is broken and won't compile.)
55 if test x"${c_links}" = x"no" ; then
56 AC_MSG_ERROR(the native compiler is broken and won't link.)
61 ## ----------------------------------------- ##
62 ## ANSIfy the C compiler whenever possible. ##
63 ## From Franc,ois Pinard ##
64 ## ----------------------------------------- ##
66 # Copyright (C) 1996, 1997, 1999, 2000, 2001, 2008, 2009
67 Free Software Foundation, Inc.
69 # This program is free software; you can redistribute it and/or modify
70 # it under the terms of the GNU General Public License as published by
71 # the Free Software Foundation; either version 2, or (at your option)
74 # This program is distributed in the hope that it will be useful,
75 # but WITHOUT ANY WARRANTY; without even the implied warranty of
76 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
77 # GNU General Public License for more details.
79 # You should have received a copy of the GNU General Public License
80 # along with this program; if not, write to the Free Software
81 # Foundation, Inc., 51 Franklin Street, Fifth Floor,
82 # Boston, MA 02110-1301, USA.
86 # @defmac AC_PROG_CC_STDC
87 # @maindex PROG_CC_STDC
89 # If the C compiler in not in ANSI C mode by default, try to add an option
90 # to output variable @code{CC} to make it so. This macro tries various
91 # options that select ANSI C on some system or another. It considers the
92 # compiler to be in ANSI C mode if it handles function prototypes correctly.
94 # If you use this macro, you should check after calling it whether the C
95 # compiler has been set to accept ANSI C; if not, the shell variable
96 # @code{am_cv_prog_cc_stdc} is set to @samp{no}. If you wrote your source
97 # code in ANSI C, you can make an un-ANSIfied copy of it by using the
98 # program @code{ansi2knr}, which comes with Ghostscript.
101 AC_DEFUN([AM_PROG_CC_STDC],
102 [AC_REQUIRE([AC_PROG_CC])
103 AC_BEFORE([$0], [AC_C_INLINE])
104 AC_BEFORE([$0], [AC_C_CONST])
105 dnl Force this before AC_PROG_CPP. Some cpp's, eg on HPUX, require
106 dnl a magic option to avoid problems with ANSI preprocessor commands
108 dnl FIXME: can't do this because then AC_AIX won't work due to a
109 dnl circular dependency.
110 dnl AC_BEFORE([$0], [AC_PROG_CPP])
111 AC_MSG_CHECKING([for ${CC-cc} option to accept ANSI C])
112 AC_CACHE_VAL(am_cv_prog_cc_stdc,
113 [am_cv_prog_cc_stdc=no
115 # Don't try gcc -ansi; that turns off useful extensions and
116 # breaks some systems' header files.
118 # Ultrix and OSF/1 -std1
119 # HP-UX 10.20 and later -Ae
120 # HP-UX older versions -Aa -D_HPUX_SOURCE
121 # SVR4 -Xc -D__EXTENSIONS__
122 for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
124 CC="$ac_save_CC $ac_arg"
128 #include <sys/types.h>
129 #include <sys/stat.h>
130 /* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */
131 struct buf { int x; };
132 FILE * (*rcsopen) (struct buf *, struct stat *, int);
133 static char *e (p, i)
139 static char *f (char * (*g) (char **, int), char **p, ...)
144 s = g (p, va_arg (v,int));
148 int test (int i, double x);
149 struct s1 {int (*f) (int a);};
150 struct s2 {int (*f) (double a);};
151 int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
155 return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1];
157 [am_cv_prog_cc_stdc="$ac_arg"; break])
161 if test -z "$am_cv_prog_cc_stdc"; then
162 AC_MSG_RESULT([none needed])
164 AC_MSG_RESULT([$am_cv_prog_cc_stdc])
166 case "x$am_cv_prog_cc_stdc" in
168 *) CC="$CC $am_cv_prog_cc_stdc" ;;
172 dnl Originally from Bruno Haible, but with some modifications
173 dnl for the GDB project.
177 dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and
178 dnl those with the standalone portable GNU libiconv installed).
180 AC_ARG_WITH([libiconv-prefix],
181 AS_HELP_STRING([--with-libiconv-prefix=DIR], [search for libiconv in DIR/include and DIR/lib]), [
182 for dir in `echo "$withval" | tr : ' '`; do
183 if test -d $dir/include; then LIBICONV_INCLUDE="-I$dir/include"; fi
184 if test -d $dir/lib; then LIBICONV_LIBDIR="-L$dir/lib"; fi
188 BUILD_LIBICONV_LIBDIRS="../libiconv/lib/.libs ../libiconv/lib/_libs"
189 BUILD_LIBICONV_INCLUDE="-I../libiconv/include"
191 AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [
192 am_cv_func_iconv="no, consider installing GNU libiconv"
194 am_cv_use_build_libiconv=no
196 # If libiconv is part of the build tree, then try using it over
198 if test -d ../libiconv; then
199 for lib_dir in $BUILD_LIBICONV_LIBDIRS; do
201 am_save_CPPFLAGS="$CPPFLAGS"
202 LIBS="$LIBS $lib_dir/libiconv.a"
203 CPPFLAGS="$CPPFLAGS $BUILD_LIBICONV_INCLUDE"
204 AC_TRY_LINK([#include <stdlib.h>
206 [iconv_t cd = iconv_open("","");
207 iconv(cd,NULL,NULL,NULL,NULL);
209 am_cv_use_build_libiconv=yes
211 am_cv_func_iconv=yes)
213 CPPFLAGS="$am_save_CPPFLAGS"
214 if test "$am_cv_use_build_libiconv" = "yes"; then
215 BUILD_LIBICONV_LIBDIR=$lib_dir
221 # Next, try to find iconv in libc.
222 if test "$am_cv_func_iconv" != yes; then
223 AC_TRY_LINK([#include <stdlib.h>
225 [iconv_t cd = iconv_open("","");
226 iconv(cd,NULL,NULL,NULL,NULL);
228 am_cv_func_iconv=yes)
231 # If iconv was not in libc, try -liconv. In this case, arrange to
232 # look in the libiconv prefix, if it was specified by the user.
233 if test "$am_cv_func_iconv" != yes; then
234 am_save_CPPFLAGS="$CPPFLAGS"
236 if test -n "$LIBICONV_INCLUDE"; then
237 CPPFLAGS="$CPPFLAGS $LIBICONV_INCLUDE"
238 LIBS="$LIBS $LIBICONV_LIBDIR"
241 AC_TRY_LINK([#include <stdlib.h>
243 [iconv_t cd = iconv_open("","");
244 iconv(cd,NULL,NULL,NULL,NULL);
247 am_cv_func_iconv=yes)
249 CPPFLAGS="$am_save_CPPFLAGS"
253 # Set the various flags based on the cache variables. We can't rely
254 # on the flags to remain set from the above code, due to caching.
256 if test "$am_cv_lib_iconv" = yes; then
262 if test "$am_cv_use_build_libiconv" = yes; then
263 LIBICONV="$BUILD_LIBICONV_LIBDIR/libiconv.a"
265 LIBICONV_INCLUDE="$BUILD_LIBICONV_INCLUDE"
267 CPPFLAGS="$CPPFLAGS $LIBICONV_INCLUDE"
268 LIBS="$LIBS $LIBICONV_LIBDIR $LIBICONV"
270 if test "$am_cv_func_iconv" = yes; then
271 AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
272 AC_MSG_CHECKING([for iconv declaration])
273 AC_CACHE_VAL(am_cv_proto_iconv, [
281 #if defined(__STDC__) || defined(__cplusplus)
282 size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
286 ], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const")
287 am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"])
288 am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
289 AC_MSG_RESULT([$]{ac_t:-
290 }[$]am_cv_proto_iconv)
291 AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1,
292 [Define as const if the declaration of iconv() needs const.])
296 dnl written by Guido Draheim <guidod@gmx.de>, original by Alexandre Oliva
297 dnl Version 1.3 (2001/03/02)
298 dnl source http://www.gnu.org/software/ac-archive/Miscellaneous/ac_define_dir.html
300 AC_DEFUN([AC_DEFINE_DIR], [
301 test "x$prefix" = xNONE && prefix="$ac_default_prefix"
302 test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
303 ac_define_dir=`eval echo [$]$2`
304 ac_define_dir=`eval echo [$]ac_define_dir`
306 AC_DEFINE_UNQUOTED($1, "$ac_define_dir"),
307 AC_DEFINE_UNQUOTED($1, "$ac_define_dir", $3))
310 dnl See whether we need a declaration for a function.
311 dnl The result is highly dependent on the INCLUDES passed in, so make sure
312 dnl to use a different cache variable name in this macro if it is invoked
313 dnl in a different context somewhere else.
314 dnl gcc_AC_CHECK_DECL(SYMBOL,
315 dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, INCLUDES]]])
316 AC_DEFUN([gcc_AC_CHECK_DECL],
317 [AC_MSG_CHECKING([whether $1 is declared])
318 AC_CACHE_VAL(gcc_cv_have_decl_$1,
319 [AC_TRY_COMPILE([$4],
321 char *(*pfn) = (char *(*)) $1 ;
322 #endif], eval "gcc_cv_have_decl_$1=yes", eval "gcc_cv_have_decl_$1=no")])
323 if eval "test \"`echo '$gcc_cv_have_decl_'$1`\" = yes"; then
324 AC_MSG_RESULT(yes) ; ifelse([$2], , :, [$2])
326 AC_MSG_RESULT(no) ; ifelse([$3], , :, [$3])
330 dnl Check multiple functions to see whether each needs a declaration.
331 dnl Arrange to define HAVE_DECL_<FUNCTION> to 0 or 1 as appropriate.
332 dnl gcc_AC_CHECK_DECLS(SYMBOLS,
333 dnl [ACTION-IF-NEEDED [, ACTION-IF-NOT-NEEDED [, INCLUDES]]])
334 AC_DEFUN([gcc_AC_CHECK_DECLS],
338 ac_tr_decl=HAVE_DECL_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
340 gcc_AC_CHECK_DECL($ac_func,
341 [AC_DEFINE_UNQUOTED($ac_tr_decl, 1) $2],
342 [AC_DEFINE_UNQUOTED($ac_tr_decl, 0) $3],
343 dnl It is possible that the include files passed in here are local headers
344 dnl which supply a backup declaration for the relevant prototype based on
345 dnl the definition of (or lack of) the HAVE_DECL_ macro. If so, this test
346 dnl will always return success. E.g. see libiberty.h's handling of
347 dnl `basename'. To avoid this, we define the relevant HAVE_DECL_ macro to
348 dnl 1 so that any local headers used do not provide their own prototype
349 dnl during this test.
351 #define $ac_tr_decl 1
355 dnl Automatically generate config.h entries via autoheader.
357 patsubst(translit([$1], [a-z], [A-Z]), [\w+],
358 [AC_DEFINE([HAVE_DECL_\&], 1,
359 [Define to 1 if we found this declaration otherwise define to 0.])])dnl
363 dnl Find the location of the private Tcl headers
364 dnl When Tcl is installed, this is TCL_INCLUDE_SPEC/tcl-private/generic
365 dnl When Tcl is in the build tree, this is not needed.
367 dnl Note: you must use first use SC_LOAD_TCLCONFIG!
368 AC_DEFUN([CY_AC_TCL_PRIVATE_HEADERS], [
369 AC_MSG_CHECKING([for Tcl private headers])
371 dir=`echo ${TCL_INCLUDE_SPEC}/tcl-private/generic | sed -e s/-I//`
372 if test -f ${dir}/tclInt.h ; then
376 if test x"${private_dir}" = x; then
377 AC_ERROR(could not find private Tcl headers)
379 TCL_PRIVATE_INCLUDE="-I${private_dir}"
380 AC_MSG_RESULT(${private_dir})
384 dnl Find the location of the private Tk headers
385 dnl When Tk is installed, this is TK_INCLUDE_SPEC/tk-private/generic
386 dnl When Tk is in the build tree, this not needed.
388 dnl Note: you must first use SC_LOAD_TKCONFIG
389 AC_DEFUN([CY_AC_TK_PRIVATE_HEADERS], [
390 AC_MSG_CHECKING([for Tk private headers])
392 dir=`echo ${TK_INCLUDE_SPEC}/tk-private/generic | sed -e s/-I//`
393 if test -f ${dir}/tkInt.h; then
397 if test x"${private_dir}" = x; then
398 AC_ERROR(could not find Tk private headers)
400 TK_PRIVATE_INCLUDE="-I${private_dir}"
401 AC_MSG_RESULT(${private_dir})
405 dnl GDB_AC_WITH_DIR([VARIABLE], [ARG-NAME], [HELP], [DEFAULT])
406 dnl Add a new --with option that defines a directory.
407 dnl The result is stored in VARIABLE. AC_DEFINE_DIR is called
408 dnl on this variable, as is AC_SUBST.
409 dnl ARG-NAME is the base name of the argument (without "--with").
410 dnl HELP is the help text to use.
411 dnl If the user's choice is relative to the prefix, then the
412 dnl result is relocatable, then this will define the C macro
413 dnl VARIABLE_RELOCATABLE to 1; otherwise it is defined as 0.
414 dnl DEFAULT is the default value, which is used if the user
415 dnl does not specify the argument.
416 AC_DEFUN([GDB_AC_WITH_DIR], [
417 AC_ARG_WITH([$2], AS_HELP_STRING([--with-][$2][=PATH], [$3]), [
418 [$1]=$withval], [[$1]=[$4]])
419 AC_DEFINE_DIR([$1], [$1], [$3])
421 if test "x$exec_prefix" = xNONE || test "x$exec_prefix" = 'x${prefix}'; then
422 if test "x$prefix" = xNONE; then
423 test_prefix=/usr/local
428 test_prefix=$exec_prefix
431 case ${ac_define_dir} in
432 "${test_prefix}"|"${test_prefix}/"*|\
433 '${exec_prefix}'|'${exec_prefix}/'*)
437 AC_DEFINE_UNQUOTED([$1]_RELOCATABLE, $value, [Define if the $2 directory should be relocated when GDB is moved.])