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
195 am_cv_build_libiconv_path=
197 # If libiconv is part of the build tree, then try using it over
199 if test -d ../libiconv; then
200 for lib_dir in $BUILD_LIBICONV_LIBDIRS; do
202 am_save_CPPFLAGS="$CPPFLAGS"
203 LIBS="$LIBS $lib_dir/libiconv.a"
204 CPPFLAGS="$CPPFLAGS $BUILD_LIBICONV_INCLUDE"
205 AC_TRY_LINK([#include <stdlib.h>
207 [iconv_t cd = iconv_open("","");
208 iconv(cd,NULL,NULL,NULL,NULL);
210 am_cv_use_build_libiconv=yes
211 am_cv_build_libiconv_path=$lib_dir/libiconv.a
213 am_cv_func_iconv=yes)
215 CPPFLAGS="$am_save_CPPFLAGS"
216 if test "$am_cv_use_build_libiconv" = "yes"; then
222 # Next, try to find iconv in libc.
223 if test "$am_cv_func_iconv" != yes; then
224 AC_TRY_LINK([#include <stdlib.h>
226 [iconv_t cd = iconv_open("","");
227 iconv(cd,NULL,NULL,NULL,NULL);
229 am_cv_func_iconv=yes)
232 # If iconv was not in libc, try -liconv. In this case, arrange to
233 # look in the libiconv prefix, if it was specified by the user.
234 if test "$am_cv_func_iconv" != yes; then
235 am_save_CPPFLAGS="$CPPFLAGS"
237 if test -n "$LIBICONV_INCLUDE"; then
238 CPPFLAGS="$CPPFLAGS $LIBICONV_INCLUDE"
239 LIBS="$LIBS $LIBICONV_LIBDIR"
242 AC_TRY_LINK([#include <stdlib.h>
244 [iconv_t cd = iconv_open("","");
245 iconv(cd,NULL,NULL,NULL,NULL);
248 am_cv_func_iconv=yes)
250 CPPFLAGS="$am_save_CPPFLAGS"
254 # Set the various flags based on the cache variables. We can't rely
255 # on the flags to remain set from the above code, due to caching.
257 if test "$am_cv_lib_iconv" = yes; then
263 if test "$am_cv_use_build_libiconv" = yes; then
264 LIBICONV="$am_cv_build_libiconv_path"
266 LIBICONV_INCLUDE="$BUILD_LIBICONV_INCLUDE"
268 CPPFLAGS="$CPPFLAGS $LIBICONV_INCLUDE"
269 LIBS="$LIBS $LIBICONV_LIBDIR $LIBICONV"
271 if test "$am_cv_func_iconv" = yes; then
272 AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
273 AC_MSG_CHECKING([for iconv declaration])
274 AC_CACHE_VAL(am_cv_proto_iconv, [
282 #if defined(__STDC__) || defined(__cplusplus)
283 size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
287 ], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const")
288 am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"])
289 am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
290 AC_MSG_RESULT([$]{ac_t:-
291 }[$]am_cv_proto_iconv)
292 AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1,
293 [Define as const if the declaration of iconv() needs const.])
297 dnl written by Guido Draheim <guidod@gmx.de>, original by Alexandre Oliva
298 dnl Version 1.3 (2001/03/02)
299 dnl source http://www.gnu.org/software/ac-archive/Miscellaneous/ac_define_dir.html
301 AC_DEFUN([AC_DEFINE_DIR], [
302 test "x$prefix" = xNONE && prefix="$ac_default_prefix"
303 test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
304 ac_define_dir=`eval echo [$]$2`
305 ac_define_dir=`eval echo [$]ac_define_dir`
307 AC_DEFINE_UNQUOTED($1, "$ac_define_dir"),
308 AC_DEFINE_UNQUOTED($1, "$ac_define_dir", $3))
311 dnl See whether we need a declaration for a function.
312 dnl The result is highly dependent on the INCLUDES passed in, so make sure
313 dnl to use a different cache variable name in this macro if it is invoked
314 dnl in a different context somewhere else.
315 dnl gcc_AC_CHECK_DECL(SYMBOL,
316 dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, INCLUDES]]])
317 AC_DEFUN([gcc_AC_CHECK_DECL],
318 [AC_MSG_CHECKING([whether $1 is declared])
319 AC_CACHE_VAL(gcc_cv_have_decl_$1,
320 [AC_TRY_COMPILE([$4],
322 char *(*pfn) = (char *(*)) $1 ;
323 #endif], eval "gcc_cv_have_decl_$1=yes", eval "gcc_cv_have_decl_$1=no")])
324 if eval "test \"`echo '$gcc_cv_have_decl_'$1`\" = yes"; then
325 AC_MSG_RESULT(yes) ; ifelse([$2], , :, [$2])
327 AC_MSG_RESULT(no) ; ifelse([$3], , :, [$3])
331 dnl Check multiple functions to see whether each needs a declaration.
332 dnl Arrange to define HAVE_DECL_<FUNCTION> to 0 or 1 as appropriate.
333 dnl gcc_AC_CHECK_DECLS(SYMBOLS,
334 dnl [ACTION-IF-NEEDED [, ACTION-IF-NOT-NEEDED [, INCLUDES]]])
335 AC_DEFUN([gcc_AC_CHECK_DECLS],
339 ac_tr_decl=HAVE_DECL_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
341 gcc_AC_CHECK_DECL($ac_func,
342 [AC_DEFINE_UNQUOTED($ac_tr_decl, 1) $2],
343 [AC_DEFINE_UNQUOTED($ac_tr_decl, 0) $3],
344 dnl It is possible that the include files passed in here are local headers
345 dnl which supply a backup declaration for the relevant prototype based on
346 dnl the definition of (or lack of) the HAVE_DECL_ macro. If so, this test
347 dnl will always return success. E.g. see libiberty.h's handling of
348 dnl `basename'. To avoid this, we define the relevant HAVE_DECL_ macro to
349 dnl 1 so that any local headers used do not provide their own prototype
350 dnl during this test.
352 #define $ac_tr_decl 1
356 dnl Automatically generate config.h entries via autoheader.
358 patsubst(translit([$1], [a-z], [A-Z]), [\w+],
359 [AC_DEFINE([HAVE_DECL_\&], 1,
360 [Define to 1 if we found this declaration otherwise define to 0.])])dnl
364 dnl Find the location of the private Tcl headers
365 dnl When Tcl is installed, this is TCL_INCLUDE_SPEC/tcl-private/generic
366 dnl When Tcl is in the build tree, this is not needed.
368 dnl Note: you must use first use SC_LOAD_TCLCONFIG!
369 AC_DEFUN([CY_AC_TCL_PRIVATE_HEADERS], [
370 AC_MSG_CHECKING([for Tcl private headers])
372 dir=`echo ${TCL_INCLUDE_SPEC}/tcl-private/generic | sed -e s/-I//`
373 if test -f ${dir}/tclInt.h ; then
377 if test x"${private_dir}" = x; then
378 AC_ERROR(could not find private Tcl headers)
380 TCL_PRIVATE_INCLUDE="-I${private_dir}"
381 AC_MSG_RESULT(${private_dir})
385 dnl Find the location of the private Tk headers
386 dnl When Tk is installed, this is TK_INCLUDE_SPEC/tk-private/generic
387 dnl When Tk is in the build tree, this not needed.
389 dnl Note: you must first use SC_LOAD_TKCONFIG
390 AC_DEFUN([CY_AC_TK_PRIVATE_HEADERS], [
391 AC_MSG_CHECKING([for Tk private headers])
393 dir=`echo ${TK_INCLUDE_SPEC}/tk-private/generic | sed -e s/-I//`
394 if test -f ${dir}/tkInt.h; then
398 if test x"${private_dir}" = x; then
399 AC_ERROR(could not find Tk private headers)
401 TK_PRIVATE_INCLUDE="-I${private_dir}"
402 AC_MSG_RESULT(${private_dir})
406 dnl GDB_AC_DEFINE_RELOCATABLE([VARIABLE], [ARG-NAME], [SHELL-VARIABLE])
407 dnl For use in processing directory values for --with-foo.
408 dnl If the path in SHELL_VARIABLE is relative to the prefix, then the
409 dnl result is relocatable, then this will define the C macro
410 dnl VARIABLE_RELOCATABLE to 1; otherwise it is defined as 0.
411 AC_DEFUN([GDB_AC_DEFINE_RELOCATABLE], [
412 if test "x$exec_prefix" = xNONE || test "x$exec_prefix" = 'x${prefix}'; then
413 if test "x$prefix" = xNONE; then
414 test_prefix=/usr/local
419 test_prefix=$exec_prefix
423 "${test_prefix}"|"${test_prefix}/"*|\
424 '${exec_prefix}'|'${exec_prefix}/'*)
428 AC_DEFINE_UNQUOTED([$1]_RELOCATABLE, $value, [Define if the $2 directory should be relocated when GDB is moved.])
431 dnl GDB_AC_WITH_DIR([VARIABLE], [ARG-NAME], [HELP], [DEFAULT])
432 dnl Add a new --with option that defines a directory.
433 dnl The result is stored in VARIABLE. AC_DEFINE_DIR is called
434 dnl on this variable, as is AC_SUBST.
435 dnl ARG-NAME is the base name of the argument (without "--with").
436 dnl HELP is the help text to use.
437 dnl If the user's choice is relative to the prefix, then the
438 dnl result is relocatable, then this will define the C macro
439 dnl VARIABLE_RELOCATABLE to 1; otherwise it is defined as 0.
440 dnl DEFAULT is the default value, which is used if the user
441 dnl does not specify the argument.
442 AC_DEFUN([GDB_AC_WITH_DIR], [
443 AC_ARG_WITH([$2], AS_HELP_STRING([--with-][$2][=PATH], [$3]), [
444 [$1]=$withval], [[$1]=[$4]])
445 AC_DEFINE_DIR([$1], [$1], [$3])
447 GDB_AC_DEFINE_RELOCATABLE([$1], [$2], ${ac_define_dir})