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67 lines
2.5 KiB
Plaintext
67 lines
2.5 KiB
Plaintext
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# ===========================================================================
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# http://autoconf-archive.cryp.to/ax_gxx_version.html
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# ===========================================================================
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#
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# SYNOPSIS
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#
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# AX_GXX_VERSION
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#
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# DESCRIPTION
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#
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# This macro retrieves the g++ version and returns it in the GXX_VERSION
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# variable if available, an empty string otherwise.
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#
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# LAST MODIFICATION
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#
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# 2008-04-12
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#
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# COPYLEFT
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#
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# Copyright (c) 2008 Francesco Salvestrini <salvestrini@users.sourceforge.net>
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the
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# Free Software Foundation; either version 2 of the License, or (at your
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# option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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# Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# As a special exception, the respective Autoconf Macro's copyright owner
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# gives unlimited permission to copy, distribute and modify the configure
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# scripts that are the output of Autoconf when processing the Macro. You
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# need not follow the terms of the GNU General Public License when using
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# or distributing such scripts, even though portions of the text of the
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# Macro appear in them. The GNU General Public License (GPL) does govern
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# all other use of the material that constitutes the Autoconf Macro.
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#
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# This special exception to the GPL applies to versions of the Autoconf
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# Macro released by the Autoconf Macro Archive. When you make and
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# distribute a modified version of the Autoconf Macro, you may extend this
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# special exception to the GPL to apply to your modified version as well.
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AC_DEFUN([AX_GXX_VERSION], [
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GXX_VERSION=""
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AX_GCC_OPTION([-dumpversion],[],[],[
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ax_gcc_version_option=yes
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],[
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ax_gcc_version_option=no
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])
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AS_IF([test "x$GXX" = "xyes"],[
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AS_IF([test "x$ax_gxx_version_option" != "no"],[
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AC_CACHE_CHECK([gxx version],[ax_cv_gxx_version],[
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ax_cv_gxx_version="`$CXX -dumpversion`"
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AS_IF([test "x$ax_cv_gxx_version" = "x"],[
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ax_cv_gxx_version=""
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])
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])
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GXX_VERSION=$ax_cv_gxx_version
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])
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])
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AC_SUBST([GXX_VERSION])
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])
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