diff options
Diffstat (limited to 'm4/ax_configure_args.m4')
| -rw-r--r-- | m4/ax_configure_args.m4 | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/m4/ax_configure_args.m4 b/m4/ax_configure_args.m4 new file mode 100644 index 0000000..0726b1b --- /dev/null +++ b/m4/ax_configure_args.m4 @@ -0,0 +1,70 @@ +# =========================================================================== +# http://www.gnu.org/software/autoconf-archive/ax_configure_args.html +# =========================================================================== +# +# SYNOPSIS +# +# AX_CONFIGURE_ARGS +# +# DESCRIPTION +# +# Helper macro for AX_ENABLE_BUILDDIR. +# +# The traditional way of starting a subdir-configure is running the script +# with ${1+"$@"} but since autoconf 2.60 this is broken. Instead we have +# to rely on eval'ing $ac_configure_args however some old autoconf +# versions do not provide that. To ensure maximum portability of autoconf +# extension macros this helper can be AC_REQUIRE'd so that +# $ac_configure_args will alsways be present. +# +# Sadly, the traditional "exec $SHELL" of the enable_builddir macros is +# spoiled now and must be replaced by "eval + exit $?". +# +# Example: +# +# AC_DEFUN([AX_ENABLE_SUBDIR],[dnl +# AC_REQUIRE([AX_CONFIGURE_ARGS])dnl +# eval $SHELL $ac_configure_args || exit $? +# ...]) +# +# LICENSE +# +# Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de> +# +# This program is free software; you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by the +# Free Software Foundation; either version 3 of the License, or (at your +# option) any later version. +# +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General +# Public License for more details. +# +# You should have received a copy of the GNU General Public License along +# with this program. If not, see <http://www.gnu.org/licenses/>. +# +# As a special exception, the respective Autoconf Macro's copyright owner +# gives unlimited permission to copy, distribute and modify the configure +# scripts that are the output of Autoconf when processing the Macro. You +# need not follow the terms of the GNU General Public License when using +# or distributing such scripts, even though portions of the text of the +# Macro appear in them. The GNU General Public License (GPL) does govern +# all other use of the material that constitutes the Autoconf Macro. +# +# This special exception to the GPL applies to versions of the Autoconf +# Macro released by the Autoconf Archive. When you make and distribute a +# modified version of the Autoconf Macro, you may extend this special +# exception to the GPL to apply to your modified version as well. + +#serial 9 + +AC_DEFUN([AX_CONFIGURE_ARGS],[ + # [$]@ is unsable in 2.60+ but earlier autoconf had no ac_configure_args + if test "${ac_configure_args+set}" != "set" ; then + ac_configure_args= + for ac_arg in ${1+"[$]@"}; do + ac_configure_args="$ac_configure_args '$ac_arg'" + done + fi +]) |