1 files changed, 88 insertions, 0 deletions
diff --git a/t/yflags-cmdline-override.sh b/t/yflags-cmdline-override.sh
new file mode 100755
index 000000000..fb27c0bab
--- /dev/null
+++ b/t/yflags-cmdline-override.sh
@@ -0,0 +1,88 @@
+#! /bin/sh
+# Copyright (C) 2011-2012 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/>.
+
+# Check that automake can cope with user-redefinition of $(YFLAGS)
+# at configure time and/or at make time.
+
+required='cc yacc'
+. ./defs || Exit 1
+
+unset YFLAGS || :
+
+cat >> configure.ac <<'END'
+AC_PROG_CC
+AC_PROG_YACC
+AC_OUTPUT
+END
+
+cat > Makefile.am <<'END'
+bin_PROGRAMS = foo
+foo_SOURCES = foo.y
+# A minor automake wart: automake doesn't generate code to clean
+# '*.output' files generated by yacc (it's not even clear if that
+# would be useful in general, so it's probably better to be
+# conservative).
+CLEANFILES = foo.output
+# Another automake wart: '-d' flag won't be given at automake time,
+# so automake won't be able to generate code to clean 'foo.h' :-(
+MAINTAINERCLEANFILES = foo.h
+END
+
+cat > foo.y << 'END'
+%{
+int yylex () { return 0; }
+void yyerror (char *s) { return; }
+int main () { return 0; }
+%}
+%%
+foobar : 'f' 'o' 'o' 'b' 'a' 'r' {};
+END
+
+$ACLOCAL
+$AUTOMAKE -a
+$AUTOCONF
+
+./configure YFLAGS='-d -v'
+$MAKE
+ls -l
+test -f foo.c
+test -f foo.h
+test -f foo.output
+
+$MAKE maintainer-clean
+ls -l
+
+./configure YFLAGS='-v'
+$MAKE
+ls -l
+test -f foo.c
+test ! -r foo.h
+test -f foo.output
+
+$MAKE maintainer-clean
+ls -l
+
+./configure YFLAGS='-v'
+YFLAGS=-d $MAKE -e
+ls -l
+test -f foo.c
+test -f foo.h
+test ! -r foo.output
+
+$MAKE maintainer-clean
+ls -l
+
+: