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dnl
dnl acx_urbi_resolve_dir.m4
dnl
dnl Enable a reasonable set of optimization flags for the C compiler.
dnl
dnl %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
dnl
dnl This file part of: AstrOmatic software
dnl
dnl Copyrights: (C) 2007-2011 Emmanuel Bertin -- IAP/CNRS/UPMC
dnl (C) 2007 Akim Demaille (original version)
dnl
dnl License: GPL
dnl
dnl AstrOmatic software is free software: you can redistribute it and/or
dnl modify it under the terms of the GNU General Public License as
dnl published by the Free Software Foundation, either version 3 of the
dnl License, or (at your option) any later version.
dnl AstrOmatic software is distributed in the hope that it will be useful,
dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
dnl GNU General Public License for more details.
dnl You should have received a copy of the GNU General Public License
dnl along with AstrOmatic software.
dnl If not, see <http://www.gnu.org/licenses/>.
dnl
dnl Last modified: 27/12/2011
dnl
dnl %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
dnl
dnl @synopsis ACX_URBI_RESOLVE_DIR
dnl
dnl Return a directory with all inner variables expanded.
dnl Based on a macro kindly provided by Akim Demaille <akim@lrde.epita.fr>.
# URBI_RESOLVE_DIR_PREPARE
# ------------------------
# Define urbi_resolve_dir.
m4_defun([URBI_RESOLVE_DIR_PREPARE],
[# PATH urbi_resolve_dir(DIR)
# --------------------------
#
urbi_resolve_dir ()
{
ac_$0_dir=$[]1
ac_$0_res=
ac_$0_prefix_NONE=
ac_$0_exec_prefix_NONE=
test "x$prefix" = xNONE &&
ac_$0_exec_prefix_NONE=yes &&
prefix=$ac_default_prefix
test "x$exec_prefix" = xNONE &&
ac_$0_exec_prefix_NONE=yes &&
exec_prefix=$prefix
while true
do
eval ac_$0_res="$ac_$0_dir"
if test x"$ac_$0_dir" = x"$ac_$0_res"; then
break
fi
ac_$0_dir=$ac_$0_res
done
test "$ac_$0_prefix_NONE" && prefix=NONE
test "$ac_$0_exec_prefix_NONE" && exec_prefix=NONE
echo "$ac_$0_res"
}
])
# PATH URBI_RESOLVE_DIR(DIR)
# --------------------------
# Return the DIR with all inner variables expanded.
AC_DEFUN([URBI_RESOLVE_DIR],
[AC_REQUIRE([URBI_RESOLVE_DIR_PREPARE])dnl
urbi_resolve_dir '$1'[]dnl
])
## Local Variables:
## mode: autoconf
## End:
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