mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-09 04:21:49 +08:00
93 lines
3.4 KiB
Plaintext
93 lines
3.4 KiB
Plaintext
|
# ===========================================================================
|
||
|
|
# http://www.gnu.org/software/autoconf-archive/ax_check_define.html
|
||
|
|
# ===========================================================================
|
||
|
|
#
|
||
|
|
# SYNOPSIS
|
||
|
|
#
|
||
|
|
# AC_CHECK_DEFINE([symbol], [ACTION-IF-FOUND], [ACTION-IF-NOT])
|
||
|
|
# AX_CHECK_DEFINE([includes],[symbol], [ACTION-IF-FOUND], [ACTION-IF-NOT])
|
||
|
|
#
|
||
|
|
# DESCRIPTION
|
||
|
|
#
|
||
|
|
# Complements AC_CHECK_FUNC but it does not check for a function but for a
|
||
|
|
# define to exist. Consider a usage like:
|
||
|
|
#
|
||
|
|
# AC_CHECK_DEFINE(__STRICT_ANSI__, CFLAGS="$CFLAGS -D_XOPEN_SOURCE=500")
|
||
|
|
#
|
||
|
|
# LICENSE
|
||
|
|
#
|
||
|
|
# Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
|
||
|
|
#
|
||
|
|
# This program is free software; you can redistribute it and/or modify it
|
||
|
|
# under the terms of the GNU General Public License as published by the
|
||
|
|
# Free Software Foundation; either version 3 of the License, or (at your
|
||
|
|
# option) any later version.
|
||
|
|
#
|
||
|
|
# This program is distributed in the hope that it will be useful, but
|
||
|
|
# WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
|
||
|
|
# Public License for more details.
|
||
|
|
#
|
||
|
|
# You should have received a copy of the GNU General Public License along
|
||
|
|
# with this program. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
#
|
||
|
|
# As a special exception, the respective Autoconf Macro's copyright owner
|
||
|
|
# gives unlimited permission to copy, distribute and modify the configure
|
||
|
|
# scripts that are the output of Autoconf when processing the Macro. You
|
||
|
|
# need not follow the terms of the GNU General Public License when using
|
||
|
|
# or distributing such scripts, even though portions of the text of the
|
||
|
|
# Macro appear in them. The GNU General Public License (GPL) does govern
|
||
|
|
# all other use of the material that constitutes the Autoconf Macro.
|
||
|
|
#
|
||
|
|
# This special exception to the GPL applies to versions of the Autoconf
|
||
|
|
# Macro released by the Autoconf Archive. When you make and distribute a
|
||
|
|
# modified version of the Autoconf Macro, you may extend this special
|
||
|
|
# exception to the GPL to apply to your modified version as well.
|
||
|
|
|
||
|
|
#serial 8
|
||
|
|
|
||
|
|
AU_ALIAS([AC_CHECK_DEFINED], [AC_CHECK_DEFINE])
|
||
|
|
AC_DEFUN([AC_CHECK_DEFINE],[
|
||
|
|
AS_VAR_PUSHDEF([ac_var],[ac_cv_defined_$1])dnl
|
||
|
|
AC_CACHE_CHECK([for $1 defined], ac_var,
|
||
|
|
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[
|
||
|
|
#ifdef $1
|
||
|
|
int ok;
|
||
|
|
#else
|
||
|
|
choke me
|
||
|
|
#endif
|
||
|
|
]])],[AS_VAR_SET(ac_var, yes)],[AS_VAR_SET(ac_var, no)]))
|
||
|
|
AS_IF([test AS_VAR_GET(ac_var) != "no"], [$2], [$3])dnl
|
||
|
|
AS_VAR_POPDEF([ac_var])dnl
|
||
|
|
])
|
||
|
|
|
||
|
|
AU_ALIAS([AX_CHECK_DEFINED], [AX_CHECK_DEFINE])
|
||
|
|
AC_DEFUN([AX_CHECK_DEFINE],[
|
||
|
|
AS_VAR_PUSHDEF([ac_var],[ac_cv_defined_$2_$1])dnl
|
||
|
|
AC_CACHE_CHECK([for $2 defined in $1], ac_var,
|
||
|
|
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <$1>]], [[
|
||
|
|
#ifdef $2
|
||
|
|
int ok;
|
||
|
|
#else
|
||
|
|
choke me
|
||
|
|
#endif
|
||
|
|
]])],[AS_VAR_SET(ac_var, yes)],[AS_VAR_SET(ac_var, no)]))
|
||
|
|
AS_IF([test AS_VAR_GET(ac_var) != "no"], [$3], [$4])dnl
|
||
|
|
AS_VAR_POPDEF([ac_var])dnl
|
||
|
|
])
|
||
|
|
|
||
|
|
AC_DEFUN([AX_CHECK_FUNC],
|
||
|
|
[AS_VAR_PUSHDEF([ac_var], [ac_cv_func_$2])dnl
|
||
|
|
AC_CACHE_CHECK([for $2], ac_var,
|
||
|
|
dnl AC_LANG_FUNC_LINK_TRY
|
||
|
|
[AC_LINK_IFELSE([AC_LANG_PROGRAM([$1
|
||
|
|
#undef $2
|
||
|
|
char $2 ();],[
|
||
|
|
char (*f) () = $2;
|
||
|
|
return f != $2; ])],
|
||
|
|
[AS_VAR_SET(ac_var, yes)],
|
||
|
|
[AS_VAR_SET(ac_var, no)])])
|
||
|
|
AS_IF([test AS_VAR_GET(ac_var) = yes], [$3], [$4])dnl
|
||
|
|
AS_VAR_POPDEF([ac_var])dnl
|
||
|
|
])# AC_CHECK_FUNC
|