CMakeScripts/UseGlibMarshal.cmake

   1 # - This is a module to Generate files using Glib-Marshal
   2 # Both the header and source files (.h and .cpp)
   3 # Copyright 2008 - Joshua L. Blocher
   4 #
   5 # And it defines the following variables:
   6 #  GLIB_MARSHAL_PREFIX - The name of the files
   7 #  GLIB_MARSHAL_FILE - File to Generate from (.list) and to generate to (.h and .cpp)
   8 #  GLIB_MARSHAL_OUTPUT_HEADER - Result of Generation
   9 #  GLIB_MARSHAL_OUTPUT_CPP - Result of Generation
  10 #  GLIB_MARSHAL_OUTPUT_LOCATION - Where we are putting the Output
  11
  12 FIND_PROGRAM(GLIB_MARSHAL_EXECUTABLE NAMES glib-genmarshal PATHS /usr/local/bin )
  13
  14 MACRO(GLIB_MARSHAL GLIB_MARSHAL_PREFIX GLIB_MARSHAL_FILE GLIB_MARSHAL_OUTPUT_LOCATION)
  15     IF(GLIB_MARSHAL_EXECUTABLE)
  16         SET(GLIB_MARSHAL_OUTPUT_EXTRA_LINE "#include \"${GLIB_MARSHAL_FILE}.h\" \n" )
  17
  18         MESSAGE(STATUS "Generating header and sourcefiles from ${GLIB_MARSHAL_FILE}.list (Glib-Marshal)")
  19         EXECUTE_PROCESS(COMMAND ${GLIB_MARSHAL_EXECUTABLE} --prefix=${GLIB_MARSHAL_PREFIX} --header ${CMAKE_CURRENT_SOURCE_DIR}/${GLIB_MARSHAL_FILE}.list
  20                                 OUTPUT_VARIABLE GLIB_MARSHAL_OUTPUT_HEADER )
  21         EXECUTE_PROCESS(COMMAND ${GLIB_MARSHAL_EXECUTABLE} --prefix=${GLIB_MARSHAL_PREFIX} --body ${CMAKE_CURRENT_SOURCE_DIR}/${GLIB_MARSHAL_FILE}.list
  22                                 OUTPUT_VARIABLE GLIB_MARSHAL_OUTPUT_CPP )
  23
  24         # check whether the generated file is the same as the existing one
  25         FILE(READ ${CMAKE_CURRENT_BINARY_DIR}/${GLIB_MARSHAL_FILE}.h GLIB_MARSHAL_HEADER_OLD)
  26         IF(NOT GLIB_MARSHAL_HEADER_OLD STREQUAL GLIB_MARSHAL_OUTPUT_HEADER)
  27             MESSAGE(STATUS "${GLIB_MARSHAL_FILE}.h changed; overwriting")
  28             FILE(WRITE ${CMAKE_CURRENT_BINARY_DIR}/${GLIB_MARSHAL_FILE}.h "${GLIB_MARSHAL_OUTPUT_HEADER}")
  29             FILE(WRITE ${CMAKE_CURRENT_BINARY_DIR}/${GLIB_MARSHAL_FILE}.cpp "${GLIB_MARSHAL_OUTPUT_EXTRA_LINE}")
  30             FILE(APPEND ${CMAKE_CURRENT_BINARY_DIR}/${GLIB_MARSHAL_FILE}.cpp "${GLIB_MARSHAL_OUTPUT_CPP}")
  31         ELSE()
  32             MESSAGE(STATUS "${GLIB_MARSHAL_FILE}.h unchanged")
  33         ENDIF()
  34     ENDIF()
  35 ENDMACRO()
  36