1 files changed, 128 insertions, 0 deletions
diff --git a/t/lexvpath.sh b/t/lexvpath.sh
new file mode 100755
index 000000000..c7316929f
--- /dev/null
+++ b/t/lexvpath.sh
@@ -0,0 +1,128 @@
+#! /bin/sh
+# Copyright (C) 2010-2012 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/>.
+
+# This test checks that dependent files are updated before including
+# in the distribution.  'lexer.c' depends on 'lexer.l'.  The latter is
+# updated so that 'lexer.c' should be rebuild.  Then we are running
+# 'make' and 'make distdir' and check whether the version of 'lexer.c'
+# to be distributed is up to date.
+
+# Please keep this in sync with sister test 'yaccvapth.test'.
+
+required='cc lex'
+. ./defs || Exit 1
+
+cat > lexoutroot.in << 'END'
+LEX_OUTPUT_ROOT='@LEX_OUTPUT_ROOT@'
+END
+
+cat >> configure.ac << 'END'
+AC_CONFIG_FILES([lexoutroot])
+AC_PROG_CC
+AC_PROG_LEX
+AC_OUTPUT
+END
+
+cat > Makefile.am << 'END'
+bin_PROGRAMS = foo
+foo_SOURCES = lexer.l foo.c
+LDADD = $(LEXLIB)
+END
+
+# Original lexer, with a "foobar" comment
+cat > lexer.l << 'END'
+%{
+#define YY_NO_UNISTD_H 1
+%}
+%%
+"END" return EOF;
+.
+%%
+/*foobar*/
+END
+
+cat > foo.c << 'END'
+int main (void)
+{
+  return 0;
+}
+/* Avoid possible link errors. */
+int yywrap (void)
+{
+  return 1;
+}
+END
+
+$ACLOCAL
+$AUTOCONF
+$AUTOMAKE -a
+
+mkdir sub
+
+# We must run configure early, to find out why $LEX_OUTPUT_ROOT is.
+cd sub
+../configure
+. ./lexoutroot
+test -n "$LEX_OUTPUT_ROOT" # Sanity check.
+cd ..
+
+$LEX lexer.l
+mv "$LEX_OUTPUT_ROOT".c lexer.c
+
+cd sub
+
+# Ensure that lexer.l will be newer than lexer.c.
+$sleep
+
+# New lexer, with 'fubar' comment.
+cat > ../lexer.l << 'END'
+%{
+#define YY_NO_UNISTD_H 1
+%}
+%%
+"END" return EOF;
+.
+%%
+/*fubar*/
+END
+
+$MAKE
+$MAKE distdir
+$FGREP '/*fubar*/' $distdir/lexer.c
+
+#
+# Now check to make sure that 'make dist' will rebuilt the parser.
+#
+
+# Ensure that lexer.l will be newer than lexer.c.
+$sleep
+
+# New lexer, with 'maude' comment.
+cat > ../lexer.l << 'END'
+%{
+#define YY_NO_UNISTD_H 1
+%}
+%%
+"END" return EOF;
+.
+%%
+/*maude*/
+END
+
+$MAKE distdir
+$FGREP '/*maude*/' $distdir/lexer.c
+
+: