diff options
-rw-r--r-- | cmake/modules/gmxTestLargeFiles.cmake | 38 |
1 files changed, 21 insertions, 17 deletions
diff --git a/cmake/modules/gmxTestLargeFiles.cmake b/cmake/modules/gmxTestLargeFiles.cmake index e7593e9924..0ac8d22b87 100644 --- a/cmake/modules/gmxTestLargeFiles.cmake +++ b/cmake/modules/gmxTestLargeFiles.cmake @@ -8,11 +8,12 @@ # # GMX_TEST_LARGE_FILES(VARIABLE) # -# VARIABLE will be set to true if off_t is 64 bits, and fseeko/ftello present. -# This macro will also set defines necessary enable large file support, for instance +# VARIABLE will be set to true if 64-bit file support is available. +# This macro will also set defines as necessary to enable large file +# support, for instance: # _LARGE_FILES # _LARGEFILE_SOURCE -# _FILE_OFFSET_BITS 64 +# _FILE_OFFSET_BITS=64 # # However, it is YOUR job to make sure these defines are set in a cmakedefine so they # end up in a config.h file that is included in your source if necessary! @@ -27,22 +28,22 @@ MACRO(GMX_TEST_LARGE_FILES VARIABLE) MESSAGE(STATUS "Checking for 64-bit off_t") # First check without any special flags - TRY_COMPILE(FILE64_OK "${CMAKE_BINARY_DIR}" + TRY_COMPILE(FILE64_OK "${CMAKE_BINARY_DIR}" "${CMAKE_SOURCE_DIR}/cmake/TestFileOffsetBits.c") if(FILE64_OK) - MESSAGE(STATUS "Checking for 64-bit off_t - present") + MESSAGE(STATUS "64-bit off_t is present with no special flags") endif(FILE64_OK) - if(NOT FILE64_OK) + if(NOT FILE64_OK) # Test with _FILE_OFFSET_BITS=64 TRY_COMPILE(FILE64_OK "${CMAKE_BINARY_DIR}" "${CMAKE_SOURCE_DIR}/cmake/TestFileOffsetBits.c" COMPILE_DEFINITIONS "-D_FILE_OFFSET_BITS=64" ) if(FILE64_OK) - MESSAGE(STATUS "Checking for 64-bit off_t - present with _FILE_OFFSET_BITS=64") + MESSAGE(STATUS "64-bit off_t is present with _FILE_OFFSET_BITS=64") set(_FILE_OFFSET_BITS 64 CACHE INTERNAL "64-bit off_t requires _FILE_OFFSET_BITS=64") endif(FILE64_OK) - endif(NOT FILE64_OK) + endif(NOT FILE64_OK) if(NOT FILE64_OK) # Test with _LARGE_FILES @@ -50,41 +51,44 @@ MACRO(GMX_TEST_LARGE_FILES VARIABLE) "${CMAKE_SOURCE_DIR}/cmake/TestFileOffsetBits.c" COMPILE_DEFINITIONS "-D_LARGE_FILES" ) if(FILE64_OK) - MESSAGE(STATUS "Checking for 64-bit off_t - present with _LARGE_FILES") + MESSAGE(STATUS "64-bit off_t is present with _LARGE_FILES") set(_LARGE_FILES 1 CACHE INTERNAL "64-bit off_t requires _LARGE_FILES") endif(FILE64_OK) endif(NOT FILE64_OK) - + if(NOT FILE64_OK) # Test with _LARGEFILE_SOURCE TRY_COMPILE(FILE64_OK "${CMAKE_BINARY_DIR}" "${CMAKE_SOURCE_DIR}/cmake/TestFileOffsetBits.c" COMPILE_DEFINITIONS "-D_LARGEFILE_SOURCE" ) if(FILE64_OK) - MESSAGE(STATUS "Checking for 64-bit off_t - present with _LARGEFILE_SOURCE") + MESSAGE(STATUS "64-bit off_t is present with _LARGEFILE_SOURCE") set(_LARGEFILE_SOURCE 1 CACHE INTERNAL "64-bit off_t requires _LARGEFILE_SOURCE") endif(FILE64_OK) endif(NOT FILE64_OK) if(NOT FILE64_OK) # now check for Windows stuff + MESSAGE(STATUS "64-bit off_t is not present") + MESSAGE(STATUS "Checking for _fseeki64") + TRY_COMPILE(FILE64_OK "${CMAKE_BINARY_DIR}" "${CMAKE_SOURCE_DIR}/cmake/TestWindowsFSeek.c") if(FILE64_OK) - MESSAGE(STATUS "Checking for 64-bit off_t - present with _fseeki64") - set(HAVE__FSEEKI64 1 CACHE INTERNAL "64-bit off_t requires _fseeki64") + MESSAGE(STATUS "_fseeki64 is present") + set(HAVE__FSEEKI64 1 CACHE INTERNAL "64-bit file offsets require _fseeki64") endif(FILE64_OK) endif(NOT FILE64_OK) if(NOT FILE64_OK) - MESSAGE(STATUS "Checking for 64-bit off_t - not present") + MESSAGE(STATUS "64-bit file offset support not available") else(NOT FILE64_OK) # Set the flags we might have determined to be required above - configure_file("${CMAKE_SOURCE_DIR}/cmake/TestLargeFiles.c.cmakein" + configure_file("${CMAKE_SOURCE_DIR}/cmake/TestLargeFiles.c.cmakein" "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/TestLargeFiles.c") - MESSAGE(STATUS "Checking for fseeko/ftello") + MESSAGE(STATUS "Checking for fseeko/ftello") # Test if ftello/fseeko are available TRY_COMPILE(FSEEKO_COMPILE_OK "${CMAKE_BINARY_DIR}" "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/TestLargeFiles.c") @@ -107,7 +111,7 @@ MACRO(GMX_TEST_LARGE_FILES VARIABLE) if(FSEEKO_COMPILE_OK) SET(${VARIABLE} 1 CACHE INTERNAL "Result of test for large file support" FORCE) - set(HAVE_FSEEKO 1 CACHE INTERNAL "64bit fseeko is available" FORCE) + set(HAVE_FSEEKO 1 CACHE INTERNAL "64-bit fseeko is available" FORCE) else(FSEEKO_COMPILE_OK) if (HAVE__FSEEKI64) SET(${VARIABLE} 1 CACHE INTERNAL "Result of test for large file support" FORCE) |