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cmake: fix detection of large file support on 32b systems

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This commit is contained in:
Hugues Delorme 2015-04-03 23:51:32 +02:00
parent 6b7c63a175
commit a91d517c98
1 changed files with 11 additions and 6 deletions
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11
CMakeLists.txt
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@ -70,15 +70,18 @@ if(NOT BUILD_STRICT_C90)
# https://www.gnu.org/software/libc/manual/html_mono/libc.html#Feature-Test-Macros
if(APPLE)
add_definitions(-D_DARWIN_USE_64_BIT_INODE)
list(APPEND CMAKE_REQUIRED_DEFINITIONS -D_DARWIN_USE_64_BIT_INODE)
else()
add_definitions(-D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE)
add_definitions(-D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE=1)
list(APPEND CMAKE_REQUIRED_DEFINITIONS
-D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE=1)
endif()
endif()
check_include_files(sys/types.h GMIO_HAVE_SYS_TYPES_H)
check_include_files(sys/stat.h GMIO_HAVE_SYS_STAT_H)
check_function_exists(fileno GMIO_HAVE_POSIX_FILENO_FUNC)
# Have POSIX fstat64() ?
# Have fstat64() ?
check_c_source_compiles(
"#include <sys/stat.h>
int main() { fstat64(0, NULL); return 0; }"
@ -87,7 +90,7 @@ if(NOT BUILD_STRICT_C90)
check_function_exists(_fstat64 GMIO_HAVE_WIN__FSTAT64_FUNC)
endif()
# Check sizeof(struct stat[64])
# Check size(in bytes) of stat::st_size
set(CMAKE_EXTRA_INCLUDE_FILES sys/stat.h)
if(GMIO_HAVE_WIN__FSTAT64_FUNC)
check_type_size("((struct _stat64*)0)->st_size" GMIO_SIZEOF_STRUCT_STAT_ST_SIZE)
@ -97,7 +100,9 @@ if(NOT BUILD_STRICT_C90)
check_type_size("((struct stat*)0)->st_size" GMIO_SIZEOF_STRUCT_STAT_ST_SIZE)
endif()
set(CMAKE_EXTRA_INCLUDE_FILES)
set(CMAKE_REQUIRED_DEFINITIONS)
# Verify large file support
if(GMIO_HAVE_SYS_STAT_H
AND NOT(GMIO_SIZEOF_STRUCT_STAT_ST_SIZE STREQUAL "0") # Not arch-dependent size
AND NOT(GMIO_SIZEOF_STRUCT_STAT_ST_SIZE EQUAL 8))