INCLUDE_DIRECTORIES(${CMAKE_CURRENT_BINARY_DIR}) IF ("${PROJECT_SOURCE_DIR}" STREQUAL "${ANOTHER_PROJ_SOURCE_DIR}") SET(BUILD_SHARED_LIBS 1) # Construct a source file outside the tree whose full path is close to # the path length limit. This will cause the full path to the object # file in the build tree to exceed the maximum path length which will # test cmLocalGenerator::CreateSafeUniqueObjectFileName. GET_FILENAME_COMPONENT(DEEPDIR ${OutOfSource_BINARY_DIR}/../OutOfSourceDeep/deeper ABSOLUTE) # Test giving the generator a custom limit. SET(CMAKE_OBJECT_PATH_MAX 220) # Use a separate variable for computation. SET(MAXPATH "${CMAKE_OBJECT_PATH_MAX}") # VS8 adds "OutOfSource/SubDir/OutOfSourceSubdir/../../../" to the # path of the source file for no good reason. Reduce the length # limit by 46 characters to account for it. It should still be long # enough to require special object file name conversion. IF(${CMAKE_GENERATOR} MATCHES "Visual Studio (8|10)") MATH(EXPR MAXPATH "${MAXPATH} - 46") ENDIF() # Ninja imposes a maximum path component count of 30. Permit more # path components in the source path. IF(${CMAKE_GENERATOR} MATCHES "Ninja") MATH(EXPR MAXPATH "${MAXPATH} - 44") ENDIF() # MAXPATH less 25 for last /and/deeper/simple.cxx part and small safety MATH(EXPR MAXPATH "${MAXPATH} - 25") STRING(LENGTH "${DEEPDIR}" DEEPDIR_LEN) WHILE("${DEEPDIR_LEN}" LESS "${MAXPATH}") SET(DEEPDIR ${DEEPDIR}/and/deeper) STRING(LENGTH "${DEEPDIR}" DEEPDIR_LEN) ENDWHILE("${DEEPDIR_LEN}" LESS "${MAXPATH}") SET(DEEPSRC ${DEEPDIR}/simple.cxx) STRING(LENGTH "${DEEPSRC}" DEEPSRC_LEN) CONFIGURE_FILE(simple.cxx.in ${DEEPSRC} COPYONLY) # Watcom WMake seems to have problems with long command lines. Just # disable this part of the test until it is resolved. IF(${CMAKE_GENERATOR} MATCHES "Watcom WMake") SET(DEEPSRC "") ADD_DEFINITIONS(-DNO_DEEPSRC) ENDIF(${CMAKE_GENERATOR} MATCHES "Watcom WMake") ADD_LIBRARY(testlib testlib.cxx) ADD_EXECUTABLE (simple simple.cxx ../simple.cxx ${DEEPSRC}) TARGET_LINK_LIBRARIES(simple testlib outlib) ENDIF ("${PROJECT_SOURCE_DIR}" STREQUAL "${ANOTHER_PROJ_SOURCE_DIR}") # test getting a definition from a subdir SET (WEASELS SIZZLING) GET_DIRECTORY_PROPERTY(incDirs INCLUDE_DIRECTORIES) IF(NOT incDirs) MESSAGE(FATAL_ERROR "GET_DIRECTORY_PROPERTY(INCLUDE_DIRECTORIES) returned empty list") ENDIF(NOT incDirs)