FindGNUREGEX.cmake
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FindGNUREGEX.cmake
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	# - Find regex
	# Find the native GNU REGEX includes and library
	#
	# GNUREGEX_INCLUDE_DIR - where to find allegro.h, etc.
	# GNUREGEX_LIBRARIES - List of libraries when using allegro.
	# GNUREGEX_FOUND - True if allegro found.


	IF (GNUREGEX_INCLUDE_DIR)
	# Already in cache, be silent
	SET(GNUREGEX_FIND_QUIETLY TRUE)
	ENDIF (GNUREGEX_INCLUDE_DIR)

	FIND_PATH(GNUREGEX_INCLUDE_DIR regex.h
	/usr/local/include
	/usr/include
	$ENV{MINGDIR}/include
	)

	IF(UNIX AND NOT CYGWIN)
	# not needed
	ELSE(UNIX AND NOT CYGWIN)
	SET(GNUREGEX_NAMES regex regexlib regexdll regex.dll regex-bcc)
	FIND_LIBRARY(GNUREGEX_LIBRARY
	NAMES ${GNUREGEX_NAMES}
	PATHS /usr/lib /usr/local/lib $ENV{MINGDIR}/lib)
	ENDIF(UNIX AND NOT CYGWIN)

	IF(UNIX AND NOT CYGWIN)
	SET(GNUREGEX_FOUND TRUE)
	SET(GNUREGEX_LIBRARIES "")
	ELSE(UNIX AND NOT CYGWIN)
	IF (GNUREGEX_INCLUDE_DIR AND GNUREGEX_LIBRARY)
	SET(GNUREGEX_FOUND TRUE)
	SET(GNUREGEX_LIBRARIES ${GNUREGEX_LIBRARY} )
	ELSE (GNUREGEX_INCLUDE_DIR AND GNUREGEX_LIBRARY)
	SET(GNUREGEX_FOUND FALSE)
	SET(GNUREGEX_LIBRARIES )
	ENDIF (GNUREGEX_INCLUDE_DIR AND GNUREGEX_LIBRARY)

	IF (GNUREGEX_FOUND)
	IF (NOT GNUREGEX_FIND_QUIETLY)
	MESSAGE(STATUS "Found GNU Regex: ${GNUREGEX_LIBRARY}")
	ENDIF (NOT GNUREGEX_FIND_QUIETLY)
	ELSE (GNUREGEX_FOUND)
	IF (GNUREGEX_FIND_REQUIRED)
	MESSAGE(STATUS "Looked for GNU Regex libraries named ${GNUREGEX_NAMES}.")
	MESSAGE(FATAL_ERROR "Could NOT find GNU Regex library")
	ENDIF (GNUREGEX_FIND_REQUIRED)
	ENDIF (GNUREGEX_FOUND)
	ENDIF(UNIX AND NOT CYGWIN)

	MARK_AS_ADVANCED(
	GNUREGEX_LIBRARY
	GNUREGEX_INCLUDE_DIR
	)