# This file is part of flex.

# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:

# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.

# Neither the name of the University nor the names of its contributors
# may be used to endorse or promote products derived from this software
# without specific prior written permission.

# THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE.

FLEX = $(top_builddir)/flex$(EXEEXT)

CLEANFILES = OUTPUT

# The test below just wants to know if flex can process multiple
# concatenated options. The -c and -n options both do nothing, so we
# group them together to see if flex will still function. We write the
# output to /dev/null since we don't really care what flex produces,
# just that it runs successfully.

test:
	echo %% | $(FLEX) -cn -o /dev/null