You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
95 lines
3.0 KiB
95 lines
3.0 KiB
# ===========================================================================
|
|
# http://www.gnu.org/software/autoconf-archive/ax_ld_check_flag.html
|
|
# ===========================================================================
|
|
#
|
|
# SYNOPSIS
|
|
#
|
|
# AX_LD_CHECK_FLAG(FLAG-TO-CHECK,[PROLOGUE],[BODY],[ACTION-IF-SUCCESS],[ACTION-IF-FAILURE])
|
|
#
|
|
# DESCRIPTION
|
|
#
|
|
# This macro tests if the C++ compiler supports the flag FLAG-TO-CHECK. If
|
|
# successfull execute ACTION-IF-SUCCESS otherwise ACTION-IF-FAILURE.
|
|
# PROLOGUE and BODY are optional and should be used as in AC_LANG_PROGRAM
|
|
# macro.
|
|
#
|
|
# Example:
|
|
#
|
|
# AX_LD_CHECK_FLAG([-Wl,-L/usr/lib],[],[],[
|
|
# ...
|
|
# ],[
|
|
# ...
|
|
# ])
|
|
#
|
|
# This code is inspired from KDE_CHECK_COMPILER_FLAG macro. Thanks to
|
|
# Bogdan Drozdowski <bogdandr@op.pl> for testing and bug fixes.
|
|
#
|
|
# LICENSE
|
|
#
|
|
# Copyright (c) 2008 Francesco Salvestrini <salvestrini@users.sourceforge.net>
|
|
#
|
|
# 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 2 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 6
|
|
|
|
AC_DEFUN([AX_LD_CHECK_FLAG],[
|
|
AC_PREREQ([2.61])
|
|
AC_REQUIRE([AC_PROG_CXX])
|
|
AC_REQUIRE([AC_PROG_SED])
|
|
|
|
flag=`echo "$1" | $SED 'y% .=/+-(){}<>:*,%_______________%'`
|
|
|
|
AC_CACHE_CHECK([whether the linker accepts the $1 flag],
|
|
[ax_cv_ld_check_flag_$flag],[
|
|
|
|
#AC_LANG_PUSH([C])
|
|
|
|
save_LDFLAGS="$LDFLAGS"
|
|
LDFLAGS="$LDFLAGS $1"
|
|
AC_LINK_IFELSE([
|
|
AC_LANG_PROGRAM([$2],[$3])
|
|
],[
|
|
eval "ax_cv_ld_check_flag_$flag=yes"
|
|
],[
|
|
eval "ax_cv_ld_check_flag_$flag=no"
|
|
])
|
|
|
|
LDFLAGS="$save_LDFLAGS"
|
|
|
|
#AC_LANG_POP
|
|
|
|
])
|
|
|
|
AS_IF([eval "test \"`echo '$ax_cv_ld_check_flag_'$flag`\" = yes"],[
|
|
:
|
|
$4
|
|
],[
|
|
:
|
|
$5
|
|
])
|
|
])
|