t/amsubst.sh

   1 #! /bin/sh
   2 # Copyright (C) 2006-2024 Free Software Foundation, Inc.
   3 #
   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)
   7 # any later version.
   8 #
   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.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  16
  17 # Check for _AM_SUBST_NOTMAKE.
  18
  19 . test-init.sh
  20
  21 cat >> configure.ac << 'END'
  22 AC_SUBST([backslash], "\\")
  23 _AM_SUBST_NOTMAKE([backslash])
  24 AC_OUTPUT
  25 END
  26
  27 cat > Makefile.am << 'END'
  28 test:
  29         @echo $(backslash) @backslash@$$
  30 END
  31
  32 $ACLOCAL
  33 $AUTOCONF
  34 $AUTOMAKE
  35 ./configure
  36
  37 # If _AM_SUBST_NOTMAKE is not honored, the backslash
  38 # variable will not be empty.
  39 $MAKE test | grep '^[$]$'