429 lines
14 KiB
Plaintext
429 lines
14 KiB
Plaintext
dnl written by Rob Savoye <rob@cygnus.com> for Cygnus Support
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dnl major rewriting for Tcl 7.5 by Don Libes <libes@nist.gov>
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dnl gdb/configure.in uses BFD_NEED_DECLARATION, so get its definition.
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sinclude(../bfd/bfd.m4)
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dnl This gets the standard macros
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sinclude(../config/acinclude.m4)
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dnl This gets autoconf bugfixes
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sinclude(../config/override.m4)
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sinclude(../config/gettext-sister.m4)
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dnl For AC_LIB_HAVE_LINKFLAGS.
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sinclude(../config/lib-ld.m4)
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sinclude(../config/lib-prefix.m4)
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sinclude(../config/lib-link.m4)
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dnl For ACX_PKGVERSION and ACX_BUGURL.
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sinclude(../config/acx.m4)
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dnl for TCL definitions
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sinclude(../config/tcl.m4)
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dnl For dependency tracking macros.
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sinclude([../config/depstand.m4])
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dnl For AM_LC_MESSAGES
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sinclude([../config/lcmessage.m4])
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dnl For AM_LANGINFO_CODESET.
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sinclude([../config/codeset.m4])
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#
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# Sometimes the native compiler is a bogus stub for gcc or /usr/ucb/cc. This
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# makes configure think it's cross compiling. If --target wasn't used, then
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# we can't configure, so something is wrong. We don't use the cache
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# here cause if somebody fixes their compiler install, we want this to work.
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AC_DEFUN([CY_AC_C_WORKS],
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[# If we cannot compile and link a trivial program, we can't expect anything to work
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AC_MSG_CHECKING(whether the compiler ($CC) actually works)
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AC_TRY_COMPILE(, [/* don't need anything here */],
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c_compiles=yes, c_compiles=no)
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AC_TRY_LINK(, [/* don't need anything here */],
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c_links=yes, c_links=no)
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if test x"${c_compiles}" = x"no" ; then
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AC_MSG_ERROR(the native compiler is broken and won't compile.)
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fi
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if test x"${c_links}" = x"no" ; then
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AC_MSG_ERROR(the native compiler is broken and won't link.)
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fi
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AC_MSG_RESULT(yes)
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])
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## ----------------------------------------- ##
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## ANSIfy the C compiler whenever possible. ##
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## From Franc,ois Pinard ##
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## ----------------------------------------- ##
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# Copyright (C) 1996, 1997, 1999, 2000, 2001, 2008, 2009
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Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2, or (at your option)
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# any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor,
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# Boston, MA 02110-1301, USA.
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# serial 1
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# @defmac AC_PROG_CC_STDC
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# @maindex PROG_CC_STDC
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# @ovindex CC
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# If the C compiler in not in ANSI C mode by default, try to add an option
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# to output variable @code{CC} to make it so. This macro tries various
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# options that select ANSI C on some system or another. It considers the
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# compiler to be in ANSI C mode if it handles function prototypes correctly.
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#
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# If you use this macro, you should check after calling it whether the C
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# compiler has been set to accept ANSI C; if not, the shell variable
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# @code{am_cv_prog_cc_stdc} is set to @samp{no}. If you wrote your source
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# code in ANSI C, you can make an un-ANSIfied copy of it by using the
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# program @code{ansi2knr}, which comes with Ghostscript.
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# @end defmac
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AC_DEFUN([AM_PROG_CC_STDC],
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[AC_REQUIRE([AC_PROG_CC])
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AC_BEFORE([$0], [AC_C_INLINE])
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AC_BEFORE([$0], [AC_C_CONST])
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dnl Force this before AC_PROG_CPP. Some cpp's, eg on HPUX, require
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dnl a magic option to avoid problems with ANSI preprocessor commands
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dnl like #elif.
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dnl FIXME: can't do this because then AC_AIX won't work due to a
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dnl circular dependency.
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dnl AC_BEFORE([$0], [AC_PROG_CPP])
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AC_MSG_CHECKING([for ${CC-cc} option to accept ANSI C])
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AC_CACHE_VAL(am_cv_prog_cc_stdc,
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[am_cv_prog_cc_stdc=no
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ac_save_CC="$CC"
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# Don't try gcc -ansi; that turns off useful extensions and
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# breaks some systems' header files.
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# AIX -qlanglvl=ansi
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# Ultrix and OSF/1 -std1
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# HP-UX 10.20 and later -Ae
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# HP-UX older versions -Aa -D_HPUX_SOURCE
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# SVR4 -Xc -D__EXTENSIONS__
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for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
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do
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CC="$ac_save_CC $ac_arg"
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AC_TRY_COMPILE(
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[#include <stdarg.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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/* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */
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struct buf { int x; };
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FILE * (*rcsopen) (struct buf *, struct stat *, int);
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static char *e (p, i)
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char **p;
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int i;
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{
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return p[i];
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}
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static char *f (char * (*g) (char **, int), char **p, ...)
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{
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char *s;
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va_list v;
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va_start (v,p);
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s = g (p, va_arg (v,int));
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va_end (v);
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return s;
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}
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int test (int i, double x);
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struct s1 {int (*f) (int a);};
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struct s2 {int (*f) (double a);};
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int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
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int argc;
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char **argv;
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], [
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return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1];
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],
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[am_cv_prog_cc_stdc="$ac_arg"; break])
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done
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CC="$ac_save_CC"
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])
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if test -z "$am_cv_prog_cc_stdc"; then
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AC_MSG_RESULT([none needed])
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else
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AC_MSG_RESULT([$am_cv_prog_cc_stdc])
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fi
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case "x$am_cv_prog_cc_stdc" in
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x|xno) ;;
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*) CC="$CC $am_cv_prog_cc_stdc" ;;
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esac
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])
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dnl From Bruno Haible.
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AC_DEFUN([AM_ICONV],
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[
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dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and
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dnl those with the standalone portable GNU libiconv installed).
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AC_ARG_WITH([libiconv-prefix],
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AS_HELP_STRING([--with-libiconv-prefix=DIR], [search for libiconv in DIR/include and DIR/lib]), [
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for dir in `echo "$withval" | tr : ' '`; do
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if test -d $dir/include; then LIBICONV_INCLUDE="-I$dir/include"; fi
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if test -d $dir/lib; then LIBICONV_LIBDIR="-L$dir/lib"; fi
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done
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])
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BUILD_LIBICONV_LIBDIR="-L../libiconv/lib/.libs -L../libiconv/lib/_libs"
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BUILD_LIBICONV_INCLUDE="-I../libiconv/include"
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AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [
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am_cv_func_iconv="no, consider installing GNU libiconv"
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am_cv_lib_iconv=no
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am_cv_use_build_libiconv=no
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# If libiconv is part of the build tree, then try using it over
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# any system iconv.
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if test -d ../libiconv; then
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am_save_LIBS="$LIBS"
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am_save_CPPFLAGS="$CPPFLAGS"
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LIBS="$LIBS $BUILD_LIBICONV_LIBDIR -liconv"
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CPPFLAGS="$CPPFLAGS $BUILD_LIBICONV_INCLUDE"
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AC_TRY_LINK([#include <stdlib.h>
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#include <iconv.h>],
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[iconv_t cd = iconv_open("","");
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iconv(cd,NULL,NULL,NULL,NULL);
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iconv_close(cd);],
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am_cv_use_build_libiconv=yes
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am_cv_lib_iconv=yes
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am_cv_func_iconv=yes)
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LIBS="$am_save_LIBS"
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CPPFLAGS="$am_save_CPPFLAGS"
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fi
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# Next, try to find iconv in libc.
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if test "$am_cv_func_iconv" != yes; then
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AC_TRY_LINK([#include <stdlib.h>
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#include <iconv.h>],
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[iconv_t cd = iconv_open("","");
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iconv(cd,NULL,NULL,NULL,NULL);
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iconv_close(cd);],
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am_cv_func_iconv=yes)
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fi
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# If iconv was not in libc, try -liconv. In this case, arrange to
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# look in the libiconv prefix, if it was specified by the user.
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if test "$am_cv_func_iconv" != yes; then
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am_save_CPPFLAGS="$CPPFLAGS"
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am_save_LIBS="$LIBS"
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if test -n "$LIBICONV_INCLUDE"; then
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CPPFLAGS="$CPPFLAGS $LIBICONV_INCLUDE"
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LIBS="$LIBS $LIBICONV_LIBDIR"
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fi
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LIBS="$LIBS -liconv"
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AC_TRY_LINK([#include <stdlib.h>
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#include <iconv.h>],
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[iconv_t cd = iconv_open("","");
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iconv(cd,NULL,NULL,NULL,NULL);
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iconv_close(cd);],
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am_cv_lib_iconv=yes
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am_cv_func_iconv=yes)
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LIBS="$am_save_LIBS"
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CPPFLAGS="$am_save_CPPFLAGS"
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fi
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])
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# Set the various flags based on the cache variables. We can't rely
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# on the flags to remain set from the above code, due to caching.
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LIBICONV=
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if test "$am_cv_lib_iconv" = yes; then
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LIBICONV="-liconv"
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else
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LIBICONV_LIBDIR=
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LIBICONV_INCLUDE=
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fi
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if test "$am_cv_use_build_libiconv" = yes; then
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LIBICONV_LIBDIR="$BUILD_LIBICONV_LIBDIR"
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LIBICONV_INCLUDE="$BUILD_LIBICONV_INCLUDE"
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fi
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CPPFLAGS="$CPPFLAGS $LIBICONV_INCLUDE"
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LIBS="$LIBS $LIBICONV_LIBDIR $LIBICONV"
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if test "$am_cv_func_iconv" = yes; then
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AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
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AC_MSG_CHECKING([for iconv declaration])
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AC_CACHE_VAL(am_cv_proto_iconv, [
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AC_TRY_COMPILE([
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#include <stdlib.h>
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#include <iconv.h>
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extern
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#ifdef __cplusplus
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"C"
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#endif
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#if defined(__STDC__) || defined(__cplusplus)
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size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
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#else
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size_t iconv();
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#endif
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], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const")
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am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"])
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am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
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AC_MSG_RESULT([$]{ac_t:-
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}[$]am_cv_proto_iconv)
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AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1,
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[Define as const if the declaration of iconv() needs const.])
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fi
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])
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dnl written by Guido Draheim <guidod@gmx.de>, original by Alexandre Oliva
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dnl Version 1.3 (2001/03/02)
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dnl source http://www.gnu.org/software/ac-archive/Miscellaneous/ac_define_dir.html
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AC_DEFUN([AC_DEFINE_DIR], [
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test "x$prefix" = xNONE && prefix="$ac_default_prefix"
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test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
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ac_define_dir=`eval echo [$]$2`
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ac_define_dir=`eval echo [$]ac_define_dir`
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ifelse($3, ,
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AC_DEFINE_UNQUOTED($1, "$ac_define_dir"),
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AC_DEFINE_UNQUOTED($1, "$ac_define_dir", $3))
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])
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dnl See whether we need a declaration for a function.
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dnl The result is highly dependent on the INCLUDES passed in, so make sure
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dnl to use a different cache variable name in this macro if it is invoked
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dnl in a different context somewhere else.
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dnl gcc_AC_CHECK_DECL(SYMBOL,
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dnl [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, INCLUDES]]])
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AC_DEFUN([gcc_AC_CHECK_DECL],
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[AC_MSG_CHECKING([whether $1 is declared])
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AC_CACHE_VAL(gcc_cv_have_decl_$1,
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[AC_TRY_COMPILE([$4],
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[#ifndef $1
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char *(*pfn) = (char *(*)) $1 ;
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#endif], eval "gcc_cv_have_decl_$1=yes", eval "gcc_cv_have_decl_$1=no")])
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if eval "test \"`echo '$gcc_cv_have_decl_'$1`\" = yes"; then
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AC_MSG_RESULT(yes) ; ifelse([$2], , :, [$2])
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else
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AC_MSG_RESULT(no) ; ifelse([$3], , :, [$3])
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fi
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])dnl
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dnl Check multiple functions to see whether each needs a declaration.
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dnl Arrange to define HAVE_DECL_<FUNCTION> to 0 or 1 as appropriate.
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dnl gcc_AC_CHECK_DECLS(SYMBOLS,
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dnl [ACTION-IF-NEEDED [, ACTION-IF-NOT-NEEDED [, INCLUDES]]])
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AC_DEFUN([gcc_AC_CHECK_DECLS],
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[for ac_func in $1
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do
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changequote(, )dnl
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ac_tr_decl=HAVE_DECL_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
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changequote([, ])dnl
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gcc_AC_CHECK_DECL($ac_func,
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[AC_DEFINE_UNQUOTED($ac_tr_decl, 1) $2],
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[AC_DEFINE_UNQUOTED($ac_tr_decl, 0) $3],
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dnl It is possible that the include files passed in here are local headers
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dnl which supply a backup declaration for the relevant prototype based on
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dnl the definition of (or lack of) the HAVE_DECL_ macro. If so, this test
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dnl will always return success. E.g. see libiberty.h's handling of
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dnl `basename'. To avoid this, we define the relevant HAVE_DECL_ macro to
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dnl 1 so that any local headers used do not provide their own prototype
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dnl during this test.
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#undef $ac_tr_decl
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#define $ac_tr_decl 1
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$4
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)
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done
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dnl Automatically generate config.h entries via autoheader.
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if test x = y ; then
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patsubst(translit([$1], [a-z], [A-Z]), [\w+],
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[AC_DEFINE([HAVE_DECL_\&], 1,
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[Define to 1 if we found this declaration otherwise define to 0.])])dnl
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fi
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])
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dnl Find the location of the private Tcl headers
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dnl When Tcl is installed, this is TCL_INCLUDE_SPEC/tcl-private/generic
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dnl When Tcl is in the build tree, this is not needed.
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dnl
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dnl Note: you must use first use SC_LOAD_TCLCONFIG!
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AC_DEFUN([CY_AC_TCL_PRIVATE_HEADERS], [
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AC_MSG_CHECKING([for Tcl private headers])
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private_dir=""
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dir=`echo ${TCL_INCLUDE_SPEC}/tcl-private/generic | sed -e s/-I//`
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if test -f ${dir}/tclInt.h ; then
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private_dir=${dir}
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fi
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if test x"${private_dir}" = x; then
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AC_ERROR(could not find private Tcl headers)
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else
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TCL_PRIVATE_INCLUDE="-I${private_dir}"
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AC_MSG_RESULT(${private_dir})
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fi
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])
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dnl Find the location of the private Tk headers
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dnl When Tk is installed, this is TK_INCLUDE_SPEC/tk-private/generic
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dnl When Tk is in the build tree, this not needed.
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dnl
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dnl Note: you must first use SC_LOAD_TKCONFIG
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AC_DEFUN([CY_AC_TK_PRIVATE_HEADERS], [
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AC_MSG_CHECKING([for Tk private headers])
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private_dir=""
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dir=`echo ${TK_INCLUDE_SPEC}/tk-private/generic | sed -e s/-I//`
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if test -f ${dir}/tkInt.h; then
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private_dir=${dir}
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fi
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if test x"${private_dir}" = x; then
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AC_ERROR(could not find Tk private headers)
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else
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TK_PRIVATE_INCLUDE="-I${private_dir}"
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AC_MSG_RESULT(${private_dir})
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fi
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])
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dnl GDB_AC_WITH_DIR([VARIABLE], [ARG-NAME], [HELP], [DEFAULT])
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dnl Add a new --with option that defines a directory.
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dnl The result is stored in VARIABLE. AC_DEFINE_DIR is called
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dnl on this variable, as is AC_SUBST.
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dnl ARG-NAME is the base name of the argument (without "--with").
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dnl HELP is the help text to use.
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dnl If the user's choice is relative to the prefix, then the
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dnl result is relocatable, then this will define the C macro
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dnl VARIABLE_RELOCATABLE to 1; otherwise it is defined as 0.
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dnl DEFAULT is the default value, which is used if the user
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dnl does not specify the argument.
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AC_DEFUN([GDB_AC_WITH_DIR], [
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AC_ARG_WITH([$2], AS_HELP_STRING([--with-][$2][=PATH], [$3]), [
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[$1]=$withval], [[$1]=[$4]])
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AC_DEFINE_DIR([$1], [$1], [$3])
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AC_SUBST([$1])
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if test "x$exec_prefix" = xNONE || test "x$exec_prefix" = 'x${prefix}'; then
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if test "x$prefix" = xNONE; then
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test_prefix=/usr/local
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else
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test_prefix=$prefix
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fi
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else
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test_prefix=$exec_prefix
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fi
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value=0
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case ${ac_define_dir} in
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"${test_prefix}"|"${test_prefix}/"*|\
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'${exec_prefix}'|'${exec_prefix}/'*)
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value=1
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;;
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esac
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AC_DEFINE_UNQUOTED([$1]_RELOCATABLE, $value, [Define if the $2 directory should be relocated when GDB is moved.])
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])
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