## Add target for bison parser generation
+MARK_AS_ADVANCED(BISON_EXECUTABLE)
FIND_PROGRAM(BISON_EXECUTABLE bison)
IF (NOT BISON_EXECUTABLE)
MESSAGE(FATAL_ERROR "bison not found - aborting")
## Add target for flex lexical analyzer generation
+MARK_AS_ADVANCED(FLEX_EXECUTABLE)
FIND_PROGRAM(FLEX_EXECUTABLE flex)
IF (NOT FLEX_EXECUTABLE)
MESSAGE(FATAL_ERROR "flex not found - aborting")