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 $am_cv_prog_cc_stdc" ;;
172 dnl From Bruno Haible.
176 dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and
177 dnl those with the standalone portable GNU libiconv installed).
179 AC_ARG_WITH([libiconv-prefix],
180 AS_HELP_STRING([--with-libiconv-prefix=DIR], [search for libiconv in DIR/include and DIR/lib]), [
181 for dir in `echo "$withval" | tr : ' '`; do
182 if test -d $dir/include; then LIBICONV_INCLUDE="-I$dir/include"; fi
183 if test -d $dir/lib; then LIBICONV_LIBDIR="-L$dir/lib"; fi
187 BUILD_LIBICONV_LIBDIRS="../libiconv/lib/.libs ../libiconv/lib/_libs"
188 BUILD_LIBICONV_INCLUDE="-I../libiconv/include"
190 AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [
191 am_cv_func_iconv="no, consider installing GNU libiconv"
193 am_cv_use_build_libiconv=no
195 # If libiconv is part of the build tree, then try using it over
197 if test -d ../libiconv; then
198 for lib_dir in $BUILD_LIBICONV_LIBDIRS; do
200 am_save_CPPFLAGS="$CPPFLAGS"
201 LIBS="$LIBS $lib_dir/libiconv.a"
202 CPPFLAGS="$CPPFLAGS $BUILD_LIBICONV_INCLUDE"
203 AC_TRY_LINK([#include <stdlib.h>
205 [iconv_t cd = iconv_open("","");
206 iconv(cd,NULL,NULL,NULL,NULL);
208 am_cv_use_build_libiconv=yes
210 am_cv_func_iconv=yes)
212 CPPFLAGS="$am_save_CPPFLAGS"
213 if test "$am_cv_use_build_libiconv" = "yes"; then
214 BUILD_LIBICONV_LIBDIR=$lib_dir
220 # Next, try to find iconv in libc.
221 if test "$am_cv_func_iconv" != yes; then
222 AC_TRY_LINK([#include <stdlib.h>
224 [iconv_t cd = iconv_open("","");
225 iconv(cd,NULL,NULL,NULL,NULL);
227 am_cv_func_iconv=yes)
230 # If iconv was not in libc, try -liconv. In this case, arrange to
231 # look in the libiconv prefix, if it was specified by the user.
232 if test "$am_cv_func_iconv" != yes; then
233 am_save_CPPFLAGS="$CPPFLAGS"
235 if test -n "$LIBICONV_INCLUDE"; then
236 CPPFLAGS="$CPPFLAGS $LIBICONV_INCLUDE"
237 LIBS="$LIBS $LIBICONV_LIBDIR"
240 AC_TRY_LINK([#include <stdlib.h>
242 [iconv_t cd = iconv_open("","");
243 iconv(cd,NULL,NULL,NULL,NULL);
246 am_cv_func_iconv=yes)
248 CPPFLAGS="$am_save_CPPFLAGS"
252 # Set the various flags based on the cache variables. We can't rely
253 # on the flags to remain set from the above code, due to caching.
255 if test "$am_cv_lib_iconv" = yes; then
261 if test "$am_cv_use_build_libiconv" = yes; then
262 LIBICONV="$BUILD_LIBICONV_LIBDIR/libiconv.a"
264 LIBICONV_INCLUDE="$BUILD_LIBICONV_INCLUDE"
266 CPPFLAGS="$CPPFLAGS $LIBICONV_INCLUDE"
267 LIBS="$LIBS $LIBICONV_LIBDIR $LIBICONV"
269 if test "$am_cv_func_iconv" = yes; then
270 AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
271 AC_MSG_CHECKING([for iconv declaration])
272 AC_CACHE_VAL(am_cv_proto_iconv, [
280 #if defined(__STDC__) || defined(__cplusplus)
281 size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
285 ], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const")
286 am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"])
287 am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
288 AC_MSG_RESULT([$]{ac_t:-
289 }[$]am_cv_proto_iconv)
290 AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1,
291 [Define as const if the declaration of iconv() needs const.])
295 dnl written by Guido Draheim <guidod@gmx.de>, original by Alexandre Oliva
296 dnl Version 1.3 (2001/03/02)
297 dnl source http://www.gnu.org/software/ac-archive/Miscellaneous/ac_define_dir.html
299 AC_DEFUN([AC_DEFINE_DIR], [
300 test "x$prefix" = xNONE && prefix="$ac_default_prefix"
301 test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
302 ac_define_dir=`eval echo [$]$2`
303 ac_define_dir=`eval echo [$]ac_define_dir`
305 AC_DEFINE_UNQUOTED($1, "$ac_define_dir"),
306 AC_DEFINE_UNQUOTED($1, "$ac_define_dir", $3))
309 dnl See whether we need a declaration for a function.
310 dnl The result is highly dependent on the INCLUDES passed in, so make sure
311 dnl to use a different cache variable name in this macro if it is invoked
312 dnl in a different context somewhere else.
313 dnl gcc_AC_CHECK_DECL(SYMBOL,
314 dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, INCLUDES]]])
315 AC_DEFUN([gcc_AC_CHECK_DECL],
316 [AC_MSG_CHECKING([whether $1 is declared])
317 AC_CACHE_VAL(gcc_cv_have_decl_$1,
318 [AC_TRY_COMPILE([$4],
320 char *(*pfn) = (char *(*)) $1 ;
321 #endif], eval "gcc_cv_have_decl_$1=yes", eval "gcc_cv_have_decl_$1=no")])
322 if eval "test \"`echo '$gcc_cv_have_decl_'$1`\" = yes"; then
323 AC_MSG_RESULT(yes) ; ifelse([$2], , :, [$2])
325 AC_MSG_RESULT(no) ; ifelse([$3], , :, [$3])
329 dnl Check multiple functions to see whether each needs a declaration.
330 dnl Arrange to define HAVE_DECL_<FUNCTION> to 0 or 1 as appropriate.
331 dnl gcc_AC_CHECK_DECLS(SYMBOLS,
332 dnl [ACTION-IF-NEEDED [, ACTION-IF-NOT-NEEDED [, INCLUDES]]])
333 AC_DEFUN([gcc_AC_CHECK_DECLS],
337 ac_tr_decl=HAVE_DECL_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
339 gcc_AC_CHECK_DECL($ac_func,
340 [AC_DEFINE_UNQUOTED($ac_tr_decl, 1) $2],
341 [AC_DEFINE_UNQUOTED($ac_tr_decl, 0) $3],
342 dnl It is possible that the include files passed in here are local headers
343 dnl which supply a backup declaration for the relevant prototype based on
344 dnl the definition of (or lack of) the HAVE_DECL_ macro. If so, this test
345 dnl will always return success. E.g. see libiberty.h's handling of
346 dnl `basename'. To avoid this, we define the relevant HAVE_DECL_ macro to
347 dnl 1 so that any local headers used do not provide their own prototype
348 dnl during this test.
350 #define $ac_tr_decl 1
354 dnl Automatically generate config.h entries via autoheader.
356 patsubst(translit([$1], [a-z], [A-Z]), [\w+],
357 [AC_DEFINE([HAVE_DECL_\&], 1,
358 [Define to 1 if we found this declaration otherwise define to 0.])])dnl
362 dnl Find the location of the private Tcl headers
363 dnl When Tcl is installed, this is TCL_INCLUDE_SPEC/tcl-private/generic
364 dnl When Tcl is in the build tree, this is not needed.
366 dnl Note: you must use first use SC_LOAD_TCLCONFIG!
367 AC_DEFUN([CY_AC_TCL_PRIVATE_HEADERS], [
368 AC_MSG_CHECKING([for Tcl private headers])
370 dir=`echo ${TCL_INCLUDE_SPEC}/tcl-private/generic | sed -e s/-I//`
371 if test -f ${dir}/tclInt.h ; then
375 if test x"${private_dir}" = x; then
376 AC_ERROR(could not find private Tcl headers)
378 TCL_PRIVATE_INCLUDE="-I${private_dir}"
379 AC_MSG_RESULT(${private_dir})
383 dnl Find the location of the private Tk headers
384 dnl When Tk is installed, this is TK_INCLUDE_SPEC/tk-private/generic
385 dnl When Tk is in the build tree, this not needed.
387 dnl Note: you must first use SC_LOAD_TKCONFIG
388 AC_DEFUN([CY_AC_TK_PRIVATE_HEADERS], [
389 AC_MSG_CHECKING([for Tk private headers])
391 dir=`echo ${TK_INCLUDE_SPEC}/tk-private/generic | sed -e s/-I//`
392 if test -f ${dir}/tkInt.h; then
396 if test x"${private_dir}" = x; then
397 AC_ERROR(could not find Tk private headers)
399 TK_PRIVATE_INCLUDE="-I${private_dir}"
400 AC_MSG_RESULT(${private_dir})
404 dnl GDB_AC_WITH_DIR([VARIABLE], [ARG-NAME], [HELP], [DEFAULT])
405 dnl Add a new --with option that defines a directory.
406 dnl The result is stored in VARIABLE. AC_DEFINE_DIR is called
407 dnl on this variable, as is AC_SUBST.
408 dnl ARG-NAME is the base name of the argument (without "--with").
409 dnl HELP is the help text to use.
410 dnl If the user's choice is relative to the prefix, then the
411 dnl result is relocatable, then this will define the C macro
412 dnl VARIABLE_RELOCATABLE to 1; otherwise it is defined as 0.
413 dnl DEFAULT is the default value, which is used if the user
414 dnl does not specify the argument.
415 AC_DEFUN([GDB_AC_WITH_DIR], [
416 AC_ARG_WITH([$2], AS_HELP_STRING([--with-][$2][=PATH], [$3]), [
417 [$1]=$withval], [[$1]=[$4]])
418 AC_DEFINE_DIR([$1], [$1], [$3])
420 if test "x$exec_prefix" = xNONE || test "x$exec_prefix" = 'x${prefix}'; then
421 if test "x$prefix" = xNONE; then
422 test_prefix=/usr/local
427 test_prefix=$exec_prefix
430 case ${ac_define_dir} in
431 "${test_prefix}"|"${test_prefix}/"*|\
432 '${exec_prefix}'|'${exec_prefix}/'*)
436 AC_DEFINE_UNQUOTED([$1]_RELOCATABLE, $value, [Define if the $2 directory should be relocated when GDB is moved.])