ref: 038d26cd2251feec441a438a5b54b733aa025039
dir: /common/id3lib/m4/lf_bash.m4/
dnl Copyright (C) 1998 Eleftherios Gkioulekas <lf@amath.washington.edu>
dnl
dnl This program is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU General Public License as published by
dnl the Free Software Foundation; either version 2 of the License, or
dnl (at your option) any later version.
dnl
dnl This program 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
dnl You should have received a copy of the GNU General Public License
dnl along with this program; if not, write to the Free Software
dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
dnl
dnl
dnl As a special exception to the GNU General Public License, if you
dnl distribute this file as part of a program that contains a configuration
dnl script generated by Autoconf, you may include it under the same
dnl distribution terms that you use for the rest of that program.
dnl
AC_DEFUN(LF_PROG_BASH,[
dnl Look for bash
AC_PATH_PROGS(BASH, bash sh, no)
if test "$BASH" = "no"
then
AC_MSG_ERROR([can not find a shell! How are you running this script?])
fi
dnl Make sure it is bash
AC_MSG_CHECKING([whether $BASH is GNU bash])
bash_output=`$BASH -version -c exit | grep GNU`
if test -n "$bash_output"
then
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
AC_MSG_WARN([you need the GNU bash to build this package correctly!!])
fi
AC_SUBST(BASH)
])