diff options
Diffstat (limited to 'cmake/FindJavacc.cmake')
| -rwxr-xr-x | cmake/FindJavacc.cmake | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/cmake/FindJavacc.cmake b/cmake/FindJavacc.cmake index c7de776..a134020 100755 --- a/cmake/FindJavacc.cmake +++ b/cmake/FindJavacc.cmake @@ -1,9 +1,24 @@ - find_program(JAVACC_EXECUTABLE NAMES javacc javaCC Javacc JavaCC javacc.bat DOC "path to the javacc executable") mark_as_advanced(JAVACC_EXECUTABLE) if(JAVACC_EXECUTABLE) set(JAVACC_FOUND 1) message(STATUS "The javacc executable: ${JAVACC_EXECUTABLE}") + execute_process( + COMMAND "${JAVACC_EXECUTABLE}" -version + OUTPUT_VARIABLE JAVACC_TEMP_VERSION + ) + string(REGEX MATCH ".* ([0-9]+(\\.[0-9]+)+) .*" JAVACC_TEMP_VERSION2_UNUSED "${JAVACC_TEMP_VERSION}") + if(CMAKE_MATCH_1) + set(JAVACC_VERSION ${CMAKE_MATCH_1}) + else() + string(REGEX MATCH "([0-9]+(\\.[0-9]+)+)" JAVACC_TEMP_VERSION3_UNUSED "${JAVACC_TEMP_VERSION}") + if(CMAKE_MATCH_1) + set(JAVACC_VERSION ${CMAKE_MATCH_1}) + else() + message(STATUS "Unable to determine JavaCC version, using existing files") + set(JAVACC_FOUND 0) + endif() + endif() else() set(JAVACC_FOUND 0) message(STATUS "The javacc executable not found, using existing files") |