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- #!/bin/sh
- # Copyright (C) 2010-2017 Free Software Foundation, Inc.
- #
- # This program is free software; you can redistribute it and/or modify
- # it under the terms of the GNU General Public License as published by
- # the Free Software Foundation; either version 2, or (at your option)
- # any later version.
- #
- # This program is distributed in the hope that it will be useful,
- # but WITHOUT ANY WARRANTY; without even the implied warranty of
- # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- # GNU General Public License for more details.
- #
- # You should have received a copy of the GNU General Public License
- # along with this program. If not, see <http://www.gnu.org/licenses/>.
- # Check for bug in variable concatenation with '+=': an extra backslash
- # is erroneously retained in the final value.
- # See also sister test 'pluseq11b.sh'.
- . test-init.sh
- cat >>configure.ac <<'END'
- AC_OUTPUT
- END
- cat > Makefile.am <<'END'
- ## Use more line continuation to ensure we are robust and can (hopefully)
- ## cope any number of them, and not just one
- FOO = \
- \
- \
- bar
- ## Both these two variable additions are required to trigger the bug.
- FOO +=
- FOO += baz
- .PHONY: test
- test:
- case '$(FOO)' in *\\*) exit 1;; *) exit 0;; esac
- END
- $ACLOCAL
- $AUTOMAKE
- grep '^ *FOO *=.*\\.' Makefile.in && exit 1
- $AUTOCONF
- ./configure
- $MAKE test
- :
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