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authorBenjamin Dobell <benjamin.dobell+git@glassechidna.com.au>2014-12-09 14:50:30 +0100
committerBenjamin Dobell <benjamin.dobell+git@glassechidna.com.au>2014-12-09 14:57:29 +0100
commit69c3aafd81e2804216361ac13eea4b157594ce24 (patch)
treef7f498ef12f359d2e26db96a037ed4d84be619e5 /cmake
parentCMake build fixes (diff)
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Diffstat (limited to 'cmake')
-rw-r--r--cmake/LargeFiles.cmake44
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)