71 lines
2.8 KiB
Text
71 lines
2.8 KiB
Text
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# ===========================================================================
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# http://www.gnu.org/software/autoconf-archive/ax_configure_args.html
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# ===========================================================================
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#
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# SYNOPSIS
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#
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# AX_CONFIGURE_ARGS
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#
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# DESCRIPTION
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#
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# Helper macro for AX_ENABLE_BUILDDIR.
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#
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# The traditional way of starting a subdir-configure is running the script
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# with ${1+"$@"} but since autoconf 2.60 this is broken. Instead we have
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# to rely on eval'ing $ac_configure_args however some old autoconf
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# versions do not provide that. To ensure maximum portability of autoconf
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# extension macros this helper can be AC_REQUIRE'd so that
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# $ac_configure_args will alsways be present.
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#
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# Sadly, the traditional "exec $SHELL" of the enable_builddir macros is
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# spoiled now and must be replaced by "eval + exit $?".
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#
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# Example:
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#
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# AC_DEFUN([AX_ENABLE_SUBDIR],[dnl
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# AC_REQUIRE([AX_CONFIGURE_ARGS])dnl
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# eval $SHELL $ac_configure_args || exit $?
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# ...])
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#
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# LICENSE
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#
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# Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
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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 3 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 Archive. When you make and distribute a
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# modified version of the Autoconf Macro, you may extend this special
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# exception to the GPL to apply to your modified version as well.
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#serial 9
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AC_DEFUN([AX_CONFIGURE_ARGS],[
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# [$]@ is unsable in 2.60+ but earlier autoconf had no ac_configure_args
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if test "${ac_configure_args+set}" != "set" ; then
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ac_configure_args=
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for ac_arg in ${1+"[$]@"}; do
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ac_configure_args="$ac_configure_args '$ac_arg'"
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done
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fi
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])
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