1 files changed, 89 insertions, 0 deletions
diff --git a/t/lex-depend.sh b/t/lex-depend.sh
new file mode 100755
index 000000000..9487f4a5c
--- /dev/null
+++ b/t/lex-depend.sh
@@ -0,0 +1,89 @@
+#! /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/>.
+
+# Test to make sure automatic dependency tracking work with Lex/C.
+# Test suggested by PR automake/6.
+
+required=lex
+. ./defs || Exit 1
+
+cat >> configure.ac << 'END'
+AC_PROG_CC
+AM_PROG_LEX
+AC_OUTPUT
+END
+
+cat > Makefile.am << 'END'
+bin_PROGRAMS = zoo
+zoo_SOURCES = joe.l
+LDADD = $(LEXLIB)
+
+.PHONY: test-deps-exist
+test-deps-exist:
+	ls -l $(DEPDIR) ;: For debugging.
+	test -f $(DEPDIR)/joe.Po
+
+.PHONY: test-obj-updated
+test-obj-updated: joe.$(OBJEXT)
+	stat older my-hdr.h joe.$(OBJEXT) || : For debugging.
+	test `ls -t older joe.$(OBJEXT) | sed 1q` = joe.$(OBJEXT)
+END
+
+cat > joe.l << 'END'
+%{
+#define YY_NO_UNISTD_H 1
+%}
+%%
+"foo" return EOF;
+.
+%%
+#include "my-hdr.h"
+int main (void)
+{
+  printf("%s\n", MESSAGE);
+  return 0;
+}
+/* Avoid possible link errors. */
+int yywrap (void)
+{
+  return 1;
+}
+END
+
+cat > my-hdr.h <<'END'
+#include <stdio.h>
+#define MESSAGE "Hello, World!"
+END
+
+$ACLOCAL
+$AUTOMAKE -a
+
+$FGREP joe.Po Makefile.in
+
+$AUTOCONF
+# Try to enable dependency tracking if possible, even if that means
+# using slow dependency extractors.
+./configure --enable-dependency-tracking
+
+$MAKE test-deps-exist
+$MAKE
+
+: > older
+$sleep
+touch my-hdr.h
+$MAKE test-obj-updated
+
+: