1 files changed, 48 insertions, 0 deletions
diff --git a/t/comment8.sh b/t/comment8.sh
new file mode 100755
index 000000000..3ed31e7c7
--- /dev/null
+++ b/t/comment8.sh
@@ -0,0 +1,48 @@
+#! /bin/sh
+# Copyright (C) 2004-2012 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/>.
+
+# Make sure += does not append to a comment.
+# Report from Stepan Kasal.
+
+. ./defs || Exit 1
+
+cat >> configure.ac <<'EOF'
+AM_CONDITIONAL([COND1], [true])
+AM_CONDITIONAL([COND2], [true])
+AC_OUTPUT
+EOF
+
+cat > Makefile.am << 'EOF'
+VAR = valA# comA ## com C
+VAR += valB # comB
+if COND1
+  VAR += val1 # com1
+endif COND1
+VAR += valC
+if COND2
+  VAR += val2 # com2
+endif COND2
+
+.PHONY: test
+test:
+	is $(VAR) == valA valB val1 valC val2
+EOF
+
+$ACLOCAL
+$AUTOCONF
+$AUTOMAKE
+./configure
+$MAKE test