if(enable_maintainer_mode)

find_program(FLEX_EXE NAMES flex)
find_program(FLEXML_EXE NAMES flexml)

IF(FLEX_EXE)
	set(HAVE_FLEX 1)
ENDIF(FLEX_EXE)

IF(FLEXML_EXE)
	set(HAVE_FLEXML 1)
ENDIF(FLEXML_EXE)

	if(HAVE_FLEXML AND HAVE_FLEX)

		file(REMOVE "${PROJECT_DIRECTORY}/src/gras/DataDesc/ddt_parse.yy.c ${PROJECT_DIRECTORY}/src/surf/simgrid_dtd.c ${PROJECT_DIRECTORY}/src/xbt/graphxml.c ${PROJECT_DIRECTORY}/src/simdag/dax_dtd.c ${PROJECT_DIRECTORY}/include/surf/simgrid_dtd.h ${PROJECT_DIRECTORY}/include/xbt/graphxml.h ${PROJECT_DIRECTORY}/src/simdag/dax_dtd.h")

		exec_program("${FLEXML_EXE} --root-tags platform -b 1000000 -P surfxml --sysid=simgrid.dtd -S ${PROJECT_DIRECTORY}/src/surf/simgrid_dtd.l -L ${PROJECT_DIRECTORY}/src/surf/simgrid.dtd" OUTPUT_VARIABLE "FLEX_OK")
		exec_program("${FLEXML_EXE} --root-tags platform -P surfxml --sysid=simgrid.dtd -H ${PROJECT_DIRECTORY}/include/surf/simgrid_dtd.h -L ${PROJECT_DIRECTORY}/src/surf/simgrid.dtd" OUTPUT_VARIABLE "FLEX_OK")

		exec_program("${FLEXML_EXE} -b 1000000 -P graphxml --sysid=graphxml.dtd -S ${PROJECT_DIRECTORY}/src/xbt/graphxml.l -L ${PROJECT_DIRECTORY}/src/xbt/graphxml.dtd" OUTPUT_VARIABLE "FLEX_OK")
		exec_program("${FLEXML_EXE} -P graphxml --sysid=graphxml.dtd -H ${PROJECT_DIRECTORY}/include/xbt/graphxml.h -L ${PROJECT_DIRECTORY}/src/xbt/graphxml.dtd" OUTPUT_VARIABLE "FLEX_OK")

		exec_program("${FLEXML_EXE} -b 1000000 --root-tags adag -P dax_ --sysid=dax.dtd -S ${PROJECT_DIRECTORY}/src/simdag/dax_dtd.l -L ${PROJECT_DIRECTORY}/src/simdag/dax.dtd" OUTPUT_VARIABLE "FLEX_OK")
		exec_program("${FLEXML_EXE} --root-tags adag -P dax_ --sysid=dax.dtd -H ${PROJECT_DIRECTORY}/src/simdag/dax_dtd.h -L ${PROJECT_DIRECTORY}/src/simdag/dax.dtd" OUTPUT_VARIABLE "FLEX_OK")

		exec_program("${FLEX_EXE} -o ${PROJECT_DIRECTORY}/src/surf/simgrid_dtd.c -Psurf_parse_ --noline ${PROJECT_DIRECTORY}/src/surf/simgrid_dtd.l"
		OUTPUT_VARIABLE "FLEX_OK")		
		exec_program("${FLEX_EXE} -o ${PROJECT_DIRECTORY}/src/xbt/graphxml.c -Pxbt_graph_parse_ --noline ${PROJECT_DIRECTORY}/src/xbt/graphxml.l"
		OUTPUT_VARIABLE "FLEX_OK")
		exec_program("${FLEX_EXE} -o ${PROJECT_DIRECTORY}/src/simdag/dax_dtd.c -Pdax_ --noline ${PROJECT_DIRECTORY}/src/simdag/dax_dtd.l"
		OUTPUT_VARIABLE "FLEX_OK")

		exec_program("${FLEX_EXE} -o ${PROJECT_DIRECTORY}/src/gras/DataDesc/ddt_parse.yy.c -Pgras_ddt_parse_ --noline ${PROJECT_DIRECTORY}/src/gras/DataDesc/ddt_parse.yy.l"	OUTPUT_VARIABLE "FLEX_OK")
	
	elseif(HAVE_FLEXML AND HAVE_FLEX)
		message("HAVE_FLEX ${HAVE_FLEX}")
		message("HAVE_FLEXML ${HAVE_FLEXML}")
		message(FATAL_ERROR "Install flex and flexml before use maintainer mode")
	endif(HAVE_FLEXML AND HAVE_FLEX)

endif(enable_maintainer_mode)