2 # Copyright (C) 2006-2017 Free Software Foundation, Inc.
4 # This program is free software; you can redistribute it and/or modify
5 # it under the terms of the GNU General Public License as published by
6 # the Free Software Foundation; either version 2, or (at your option)
9 # This program is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 # GNU General Public License for more details.
14 # You should have received a copy of the GNU General Public License
15 # along with this program. If not, see <http://www.gnu.org/licenses/>.
17 # Check for _AM_SUBST_NOTMAKE.
21 cat >> configure.ac
<< 'END'
22 AC_SUBST
([backslash
], "\\")
23 _AM_SUBST_NOTMAKE
([backslash
])
27 cat > Makefile.am
<< 'END'
29 @
echo $
(backslash
) @backslash@$$
37 # If _AM_SUBST_NOTMAKE is not honored, the backslash
38 # variable will not be empty.
39 $MAKE test |
grep '^[$]$'