t/aclocal-no-symlinked-overwrite.sh

   1 #! /bin/sh
   2 # Copyright (C) 2006-2017 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 # Make sure aclocal does not write into symlinked aclocal.m4.
  18
  19 am_create_testdir=empty
  20 . test-init.sh
  21
  22 echo 'm4_define([FOO], [wrong foo])' > foo.m4
  23 echo 'm4_define([FOO], [right foo])' > acinclude.m4
  24 echo 'AC_INIT FOO' > configure.ac
  25
  26 chmod a-w foo.m4
  27
  28 # Setup.
  29 ln -s foo.m4 aclocal.m4 && test -h aclocal.m4 \
  30   || skip_ "cannot create symlinks to files"
  31
  32 # Sanity check.
  33 grep 'wrong foo' aclocal.m4 \
  34   || fatal_ "weird error symlinking aclocal.m4 -> foo.m4"
  35
  36 $ACLOCAL
  37 $AUTOCONF
  38 grep 'right foo' configure
  39 grep 'wrong foo' foo.m4
  40
  41 :