diff options
Diffstat (limited to 'cmake')
| -rw-r--r-- | cmake/LargeFiles.cmake | 44 |
1 files changed, 32 insertions, 12 deletions
diff --git a/cmake/LargeFiles.cmake b/cmake/LargeFiles.cmake index b59295a..6e60a8d 100644 --- a/cmake/LargeFiles.cmake +++ b/cmake/LargeFiles.cmake @@ -2,21 +2,31 @@ macro(test_large_files VARIABLE USE_64_SUFFIX) if(NOT DEFINED ${VARIABLE}) message(STATUS "Checking if large (64-bit) file support is available...") - if(${USE_64_SUFFIX}) + if(USE_64_SUFFIX) set(SUFFIX_64 "64") - else(${USE_64_SUFFIX}) + else(USE_64_SUFFIX) set(SUFFIX_64 "") - endif(${USE_64_SUFFIX}) + endif(USE_64_SUFFIX) # First try without any macros defined try_compile(LARGE_FILES_SUPPORTED "${CMAKE_BINARY_DIR}" - "${CMAKE_MODULE_PATH}/LargeFiles${SUFFIX_64}.c") + "${CMAKE_MODULE_PATH}/LargeFiles${SUFFIX_64}.c" + OUTPUT_VARIABLE TRY_LARGE_FILES_OUTPUT) + + if(VERBOSE_LARGE_FILES) + message(STATUS "Large file output (no special flags):\n${TRY_LARGE_FILES_OUTPUT}") + endif(VERBOSE_LARGE_FILES) if(NOT LARGE_FILES_SUPPORTED) # Try with C macro _FILE_OFFSET_BITS=64 try_compile(LARGE_FILES_SUPPORTED "${CMAKE_BINARY_DIR}" "${CMAKE_MODULE_PATH}/LargeFiles${SUFFIX_64}.c" - COMPILE_DEFINITIONS "-D_FILE_OFFSET_BITS=64") + COMPILE_DEFINITIONS "-D_FILE_OFFSET_BITS=64" + OUTPUT_VARIABLE TRY_LARGE_FILES_OUTPUT) + + if(VERBOSE_LARGE_FILES) + message(STATUS "Large file output (_FILE_OFFSET_BITS=64):\n${TRY_LARGE_FILES_OUTPUT}") + endif(VERBOSE_LARGE_FILES) if(LARGE_FILES_SUPPORTED) set(_FILE_OFFSET_BITS=64 CACHE INTERNAL "C macro _FILE_OFFSET_BITS=64 is required for 64-bit file support") @@ -28,10 +38,15 @@ macro(test_large_files VARIABLE USE_64_SUFFIX) try_compile(LARGE_FILES_SUPPORTED "${CMAKE_BINARY_DIR}" "${CMAKE_MODULE_PATH}/LargeFiles${SUFFIX_64}.c" - COMPILE_DEFINITIONS "-D_LARGEFILE_SOURCE${SUFFIX_64}") + COMPILE_DEFINITIONS "-D_LARGEFILE${SUFFIX_64}_SOURCE" + OUTPUT_VARIABLE TRY_LARGE_FILES_OUTPUT) + + if(VERBOSE_LARGE_FILES) + message(STATUS "Large file output (_LARGEFILE${SUFFIX_64}_SOURCE):\n${TRY_LARGE_FILES_OUTPUT}") + endif(VERBOSE_LARGE_FILES) if(LARGE_FILES_SUPPORTED) - set(_LARGEFILE_SOURCE${SUFFIX_64}=1 CACHE INTERNAL "C macro _LARGEFILE_SOURCE${SUFFIX_64} is required for 64-bit file support") + set(_LARGEFILE${SUFFIX_64}_SOURCE=1 CACHE INTERNAL "C macro _LARGEFILE${SUFFIX_64}_SOURCE is required for 64-bit file support") endif(LARGE_FILES_SUPPORTED) endif(NOT LARGE_FILES_SUPPORTED) @@ -39,11 +54,16 @@ macro(test_large_files VARIABLE USE_64_SUFFIX) # Try with both C macro _FILE_OFFSET_BITS=64 and _LARGEFILE_SOURCE try_compile(LARGE_FILES_SUPPORTED "${CMAKE_BINARY_DIR}" "${CMAKE_MODULE_PATH}/LargeFiles${SUFFIX_64}.c" - COMPILE_DEFINITIONS "-D_FILE_OFFSET_BITS=64" "-D_LARGEFILE_SOURCE${SUFFIX_64}") + COMPILE_DEFINITIONS "-D_FILE_OFFSET_BITS=64" "-D_LARGEFILE${SUFFIX_64}_SOURCE" + OUTPUT_VARIABLE TRY_LARGE_FILES_OUTPUT) + + if(VERBOSE_LARGE_FILES) + message(STATUS "Large file output (_FILE_OFFSET_BITS=64 and _LARGEFILE${SUFFIX_64}_SOURCE):\n${TRY_LARGE_FILES_OUTPUT}") + endif(VERBOSE_LARGE_FILES) if(LARGE_FILES_SUPPORTED) set(_FILE_OFFSET_BITS=64 CACHE INTERNAL "C macro _FILE_OFFSET_BITS=64 is required for 64-bit file support") - set(_LARGEFILE_SOURCE${SUFFIX_64}=1 CACHE INTERNAL "C macro _LARGEFILE_SOURCE${SUFFIX_64} is required for 64-bit file support") + set(_LARGEFILE${SUFFIX_64}_SOURCE=1 CACHE INTERNAL "C macro _LARGEFILE${SUFFIX_64}_SOURCE is required for 64-bit file support") endif(LARGE_FILES_SUPPORTED) endif(NOT LARGE_FILES_SUPPORTED) @@ -77,10 +97,10 @@ macro(use_large_files TARGET USE_64_SUFFIX) APPEND PROPERTY COMPILE_DEFINITIONS "-D_LARGEFILE_SOURCE") endif(DEFINED _LARGEFILE_SOURCE) - if(DEFINED _LARGEFILE_SOURCE64) + if(DEFINED _LARGEFILE64_SOURCE) set_property(TARGET ${TARGET} - APPEND PROPERTY COMPILE_DEFINITIONS "-D_LARGEFILE_SOURCE64") - endif(DEFINED _LARGEFILE_SOURCE64) + APPEND PROPERTY COMPILE_DEFINITIONS "-D_LARGEFILE64_SOURCE") + endif(DEFINED _LARGEFILE64_SOURCE) else(USING_LARGE_FILES) message(FATAL_ERROR "Large file support not available") endif(USING_LARGE_FILES) |