Tests/ExternalOBJ/CMakeLists.txt

   1 PROJECT (ExternalOBJ)
   2
   3 # Build the external object file.
   4 TRY_COMPILE(EXTERNAL_OBJECT_BUILT
   5   ${ExternalOBJ_BINARY_DIR}/Object
   6   ${ExternalOBJ_SOURCE_DIR}/Object
   7   Object
   8   external
   9   OUTPUT_VARIABLE OUTPUT
  10   )
  11 SET(EXTERNAL_OBJECT_NAME "external_object${CMAKE_CXX_OUTPUT_EXTENSION}")
  12 IF(EXTERNAL_OBJECT_BUILT)
  13   MESSAGE(
  14     "Building ${EXTERNAL_OBJECT_NAME} succeeded with the following output:\n"
  15     "[${OUTPUT}]"
  16     )
  17 ELSE(EXTERNAL_OBJECT_BUILT)
  18   MESSAGE(FATAL_ERROR
  19     "Building ${EXTERNAL_OBJECT_NAME} failed with the following output:\n"
  20     "[${OUTPUT}]"
  21     )
  22 ENDIF(EXTERNAL_OBJECT_BUILT)
  23
  24 # Find the external object file.
  25 SET(BASE ${ExternalOBJ_BINARY_DIR}/Object)
  26 SET(EXTERNAL_OBJECT)
  27 FOREACH(dir external.dir . ${CMAKE_CONFIGURATION_TYPES})
  28   IF(NOT EXTERNAL_OBJECT)
  29     IF(EXISTS ${BASE}/${dir}/${EXTERNAL_OBJECT_NAME})
  30       SET(EXTERNAL_OBJECT ${BASE}/${dir}/${EXTERNAL_OBJECT_NAME})
  31     ENDIF(EXISTS ${BASE}/${dir}/${EXTERNAL_OBJECT_NAME})
  32   ENDIF(NOT EXTERNAL_OBJECT)
  33 ENDFOREACH(dir)
  34 IF(NOT EXTERNAL_OBJECT)
  35   FILE(GLOB_RECURSE EXTERNAL_OBJECT
  36     "${ExternalOBJ_BINARY_DIR}/Object/${EXTERNAL_OBJECT_NAME}")
  37 ENDIF(NOT EXTERNAL_OBJECT)
  38 IF(EXTERNAL_OBJECT)
  39   MESSAGE("Found \"${EXTERNAL_OBJECT}\".")
  40 ELSE(EXTERNAL_OBJECT)
  41   MESSAGE(FATAL_ERROR "Could not find ${EXTERNAL_OBJECT_NAME}.")
  42 ENDIF(EXTERNAL_OBJECT)
  43
  44 # Build an executable using the external object file.
  45 ADD_EXECUTABLE(executable executable.cxx ${EXTERNAL_OBJECT})