| Oscar Fuentes | 00905d5 | 2008-09-22 01:08:49 +0000 | [diff] [blame^] | 1 | # - Try to find Bison |
| 2 | # Once done this will define |
| 3 | # |
| 4 | # BISON_FOUND - system has Bison |
| 5 | # BISON_EXECUTABLE - path of the bison executable |
| 6 | # BISON_VERSION - the version string, like "2.5.31" |
| 7 | # |
| 8 | |
| 9 | MACRO(FIND_BISON) |
| 10 | FIND_PROGRAM(BISON_EXECUTABLE NAMES bison) |
| 11 | |
| 12 | IF(BISON_EXECUTABLE) |
| 13 | SET(BISON_FOUND TRUE) |
| 14 | |
| 15 | EXECUTE_PROCESS(COMMAND ${BISON_EXECUTABLE} --version |
| 16 | OUTPUT_VARIABLE _BISON_VERSION |
| 17 | ) |
| 18 | string (REGEX MATCH "[0-9]+\\.[0-9]+\\.[0-9]+" BISON_VERSION "${_bison_VERSION}") |
| 19 | ENDIF(BISON_EXECUTABLE) |
| 20 | |
| 21 | IF(BISON_FOUND) |
| 22 | IF(NOT Bison_FIND_QUIETLY) |
| 23 | MESSAGE(STATUS "Found Bison: ${BISON_EXECUTABLE}") |
| 24 | ENDIF(NOT Bison_FIND_QUIETLY) |
| 25 | ELSE(BISON_FOUND) |
| 26 | IF(Bison_FIND_REQUIRED) |
| 27 | MESSAGE(FATAL_ERROR "Could not find Bison") |
| 28 | ENDIF(Bison_FIND_REQUIRED) |
| 29 | ENDIF(BISON_FOUND) |
| 30 | ENDMACRO(FIND_BISON) |
| 31 | |
| 32 | MACRO(BISON_GENERATOR _PREFIX _Y_INPUT _H_OUTPUT _CPP_OUTPUT) |
| 33 | IF(BISON_EXECUTABLE) |
| 34 | GET_FILENAME_COMPONENT(_Y_DIR ${_Y_INPUT} PATH) |
| 35 | ADD_CUSTOM_COMMAND( |
| 36 | OUTPUT ${_CPP_OUTPUT} |
| 37 | OUTPUT ${_H_OUTPUT} |
| 38 | DEPENDS ${_Y_INPUT} |
| 39 | COMMAND ${BISON_EXECUTABLE} |
| 40 | ARGS |
| 41 | -p ${_PREFIX} -o"${_CPP_OUTPUT}" |
| 42 | --defines="${_H_OUTPUT}" ${_Y_INPUT} |
| 43 | WORKING_DIRECTORY ${_Y_DIR} |
| 44 | ) |
| 45 | SET_SOURCE_FILES_PROPERTIES( |
| 46 | ${_CPP_OUTPUT} ${_H_OUTPUT} |
| 47 | GENERATED |
| 48 | ) |
| 49 | ELSE(BISON_EXECUTABLE) |
| 50 | MESSAGE(SEND_ERROR "Can't find bison program, and it's required") |
| 51 | ENDIF(BISON_EXECUTABLE) |
| 52 | ENDMACRO(BISON_GENERATOR) |