1 files changed, 78 insertions, 0 deletions
diff --git a/t/lex-libobj.sh b/t/lex-libobj.sh
new file mode 100755
index 000000000..3bc29814b
--- /dev/null
+++ b/t/lex-libobj.sh
@@ -0,0 +1,78 @@
+#! /bin/sh
+# Copyright (C) 1999-2012 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 we can provide a personal 'yywrap' function through the
+# LIBOBJ machinery.
+
+required='cc lex'
+. ./defs || Exit 1
+
+cat >> configure.ac << 'END'
+AC_PROG_CC
+AC_PROG_RANLIB
+AC_PROG_LEX
+save_LIBS=$LIBS
+LIBS="$LEXLIB $LIBS"
+AC_REPLACE_FUNCS([yywrap])
+LIBS=$save_LIBS
+AC_OUTPUT
+END
+
+cat > Makefile.am << 'END'
+noinst_PROGRAMS = foo
+foo_SOURCES = foo.l
+foo_LDADD = $(LEXLIB) $(LIBOBJS)
+END
+
+cat > yywrap.c << 'END'
+int yywrap (void)
+{
+  return 1;
+}
+END
+
+cat > foo.l <<'END'
+%{
+#define YY_NO_UNISTD_H 1
+%}
+%%
+"END" return EOF;
+.
+%%
+int main (void)
+{
+  return 0;
+}
+END
+
+$ACLOCAL
+$AUTOCONF
+$AUTOMAKE -a
+
+./configure
+grep LIBOBJS Makefile # For debugging.
+$MAKE
+$MAKE distclean
+
+# Force "no system lex library".
+./configure LEXLIB='-L /lib'
+grep LIBOBJS Makefile # For debugging.
+grep '^LIBOBJS *=.*yywrap.*\.o' Makefile # Sanity check.
+$MAKE
+
+yl_distcheck
+
+: