diff options
| -rw-r--r-- | Source/kwsys/CMakeLists.txt | 2 | ||||
| -rw-r--r-- | Source/kwsys/CheckCXXSourceRuns.cmake | 62 |
2 files changed, 63 insertions, 1 deletions
diff --git a/Source/kwsys/CMakeLists.txt b/Source/kwsys/CMakeLists.txt index aee68e2..71dc1be 100644 --- a/Source/kwsys/CMakeLists.txt +++ b/Source/kwsys/CMakeLists.txt @@ -245,7 +245,7 @@ ENDIF(NOT KWSYS_IN_SOURCE_BUILD) IF("${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}" LESS 2.4) MESSAGE(STATUS "Skip large files support because CMake is earlier than 2.4") ELSE("${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}" LESS 2.4) - INCLUDE(CheckCXXSourceRuns) + INCLUDE(${CMAKE_CURRENT_SOURCE_DIR}/CheckCXXSourceRuns.cmake) FILE(READ "${CMAKE_CURRENT_SOURCE_DIR}/RequireLargeFilesSupport.cxx" __kwsys_require_large_files_support) CHECK_CXX_SOURCE_RUNS("${__kwsys_require_large_files_support}" diff --git a/Source/kwsys/CheckCXXSourceRuns.cmake b/Source/kwsys/CheckCXXSourceRuns.cmake new file mode 100644 index 0000000..7a086f3 --- /dev/null +++ b/Source/kwsys/CheckCXXSourceRuns.cmake @@ -0,0 +1,62 @@ +# - Check if the source code provided in the SOURCE argument compiles. +# CHECK_CXX_SOURCE_COMPILES(SOURCE VAR) +# - macro which checks if the source code compiles\ +# SOURCE - source code to try to compile +# VAR - variable to store size if the type exists. +# +# The following variables may be set before calling this macro to +# modify the way the check is run: +# +# CMAKE_REQUIRED_FLAGS = string of compile command line flags +# CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar) +# CMAKE_REQUIRED_INCLUDES = list of include directories +# CMAKE_REQUIRED_LIBRARIES = list of libraries to link + +MACRO(CHECK_CXX_SOURCE_RUNS SOURCE VAR COMMENT) + IF("HAVE_${VAR}" MATCHES "^HAVE_${VAR}$") + SET(MACRO_CHECK_FUNCTION_DEFINITIONS + "-D${VAR} ${CMAKE_REQUIRED_FLAGS}") + IF(CMAKE_REQUIRED_LIBRARIES) + SET(CHECK_CXX_SOURCE_COMPILES_ADD_LIBRARIES + "-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}") + ELSE(CMAKE_REQUIRED_LIBRARIES) + SET(CHECK_CXX_SOURCE_COMPILES_ADD_LIBRARIES) + ENDIF(CMAKE_REQUIRED_LIBRARIES) + IF(CMAKE_REQUIRED_INCLUDES) + SET(CHECK_CXX_SOURCE_COMPILES_ADD_INCLUDES + "-DINCLUDE_DIRECTORIES:STRING=${CMAKE_REQUIRED_INCLUDES}") + ELSE(CMAKE_REQUIRED_INCLUDES) + SET(CHECK_CXX_SOURCE_COMPILES_ADD_INCLUDES) + ENDIF(CMAKE_REQUIRED_INCLUDES) + SET(CMAKE_EMPTY_INPUT_FILE_CONTENT "${SOURCE}") + CONFIGURE_FILE("${VTK_SOURCE_DIR}/CMake/CMakeEmptyInputFile.in" + "${CMAKE_BINARY_DIR}/CMakeFiles/CMakeTmp/src.cxx") + + MESSAGE(STATUS "Performing Test ${COMMENT}") + TRY_RUN(${VAR} HAVE_${VAR} + ${CMAKE_BINARY_DIR} + ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeTmp/src.cxx + COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS} + CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_FUNCTION_DEFINITIONS} + "${CHECK_CXX_SOURCE_COMPILES_ADD_LIBRARIES}" + "${CHECK_CXX_SOURCE_COMPILES_ADD_INCLUDES}" + OUTPUT_VARIABLE OUTPUT) + IF(HAVE_${VAR}) + SET(${VAR} 1 CACHE INTERNAL "Test ${COMMENT}") + MESSAGE(STATUS "Performing Test ${COMMENT} - Success") + FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeOutput.log + "Performing C++ SOURCE FILE Test ${COMMENT} succeded with the following output:\n" + "${OUTPUT}\n" + "Source file was:\n${SOURCE}\n") + ELSE(HAVE_${VAR}) + MESSAGE(STATUS "Performing Test ${COMMENT} - Failed") + SET(${VAR} "" CACHE INTERNAL "Test ${COMMENT}") + FILE(APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeError.log + "Performing C++ SOURCE FILE Test ${COMMENT} failed with the following output:\n" + "${OUTPUT}\n" + "Source file was:\n${SOURCE}\n") + ENDIF(HAVE_${VAR}) + ENDIF("HAVE_${VAR}" MATCHES "^HAVE_${VAR}$") +ENDMACRO(CHECK_CXX_SOURCE_RUNS) + + |