122 lines
4.3 KiB
CMake
122 lines
4.3 KiB
CMake
|
include (CheckIncludeFile)
|
||
|
|
include (CheckTypeSize)
|
||
|
|
include (CMakePushCheckState)
|
||
|
|
|
||
|
|
macro (TEST_LARGE_FILES VARIABLE)
|
||
|
|
|
||
|
|
if (NOT DEFINED ${VARIABLE})
|
||
|
|
|
||
|
|
cmake_push_check_state()
|
||
|
|
|
||
|
|
message (STATUS "")
|
||
|
|
message (STATUS "")
|
||
|
|
message (STATUS "Checking large files support...")
|
||
|
|
|
||
|
|
if (WIN32)
|
||
|
|
set (${VARIABLE} 1 CACHE INTERNAL "Result of tests for large file support" FORCE)
|
||
|
|
message (STATUS "")
|
||
|
|
message (STATUS "Result of checking large files support: supported with WinAPI")
|
||
|
|
else ()
|
||
|
|
|
||
|
|
message (STATUS "")
|
||
|
|
check_include_file(sys/types.h HAVE_SYS_TYPES_H)
|
||
|
|
check_include_file(stdint.h HAVE_STDINT_H)
|
||
|
|
check_include_file(stddef.h HAVE_STDDEF_H)
|
||
|
|
message (STATUS "")
|
||
|
|
|
||
|
|
message (STATUS "Checking size of off_t without any definitions:")
|
||
|
|
check_type_size (off_t SIZEOF_OFF_T)
|
||
|
|
message (STATUS "Checking of off_t without any definitions: ${SIZEOF_OFF_T}")
|
||
|
|
if (SIZEOF_OFF_T EQUAL 8)
|
||
|
|
set (LARGE_FILES_DEFINITIONS "" CACHE INTERNAL "64-bit off_t required definitions")
|
||
|
|
set (FILE64 TRUE)
|
||
|
|
else ()
|
||
|
|
unset (HAVE_SIZEOF_OFF_T CACHE)
|
||
|
|
unset (SIZEOF_OFF_T CACHE)
|
||
|
|
unset (SIZEOF_OFF_T_CODE CACHE)
|
||
|
|
cmake_pop_check_state()
|
||
|
|
set (FILE64 FALSE)
|
||
|
|
endif ()
|
||
|
|
|
||
|
|
if (NOT FILE64)
|
||
|
|
set (CMAKE_REQUIRED_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS} /D_FILE_OFFSET_BITS=64)
|
||
|
|
message (STATUS "")
|
||
|
|
message (STATUS "Checking size of off_t with _FILE_OFFSET_BITS=64:")
|
||
|
|
check_type_size (off_t SIZEOF_OFF_T)
|
||
|
|
message (STATUS "Checking size of off_t with _FILE_OFFSET_BITS=64: ${SIZEOF_OFF_T}")
|
||
|
|
if (SIZEOF_OFF_T EQUAL 8)
|
||
|
|
set (_FILE_OFFSET_BITS 64 CACHE INTERNAL "")
|
||
|
|
set (_FILE_OFFSET_BITS_CODE "#define _FILE_OFFSET_BITS 64" CACHE INTERNAL "")
|
||
|
|
set (LARGE_FILES_DEFINITIONS ${LARGE_FILES_DEFINITIONS} "/D_FILE_OFFSET_BITS=64" CACHE INTERNAL "64-bit off_t required definitions")
|
||
|
|
set (FILE64 TRUE)
|
||
|
|
else ()
|
||
|
|
set (_FILE_OFFSET_BITS_CODE "" CACHE INTERNAL "")
|
||
|
|
unset (HAVE_SIZEOF_OFF_T CACHE)
|
||
|
|
unset (SIZEOF_OFF_T CACHE)
|
||
|
|
unset (SIZEOF_OFF_T_CODE CACHE)
|
||
|
|
cmake_pop_check_state()
|
||
|
|
set (FILE64 FALSE)
|
||
|
|
endif ()
|
||
|
|
endif ()
|
||
|
|
|
||
|
|
if (NOT FILE64)
|
||
|
|
set (CMAKE_REQUIRED_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS} /D_LARGE_FILES)
|
||
|
|
message (STATUS "")
|
||
|
|
message (STATUS "Checking size of off_t with _LARGE_FILES:")
|
||
|
|
check_type_size (off_t SIZEOF_OFF_T)
|
||
|
|
message (STATUS "Checking size of off_t with _LARGE_FILES: ${SIZEOF_OFF_T}")
|
||
|
|
if (SIZEOF_OFF_T EQUAL 8)
|
||
|
|
set (_LARGE_FILES 1 CACHE INTERNAL "")
|
||
|
|
set (LARGE_FILES_DEFINITIONS ${LARGE_FILES_DEFINITIONS} "/D_LARGE_FILES" CACHE INTERNAL "64-bit off_t required definitions")
|
||
|
|
set (FILE64 TRUE)
|
||
|
|
else ()
|
||
|
|
unset (HAVE_SIZEOF_OFF_T CACHE)
|
||
|
|
unset (SIZEOF_OFF_T CACHE)
|
||
|
|
unset (SIZEOF_OFF_T_CODE CACHE)
|
||
|
|
cmake_pop_check_state()
|
||
|
|
set (FILE64 FALSE)
|
||
|
|
endif ()
|
||
|
|
endif ()
|
||
|
|
|
||
|
|
if (NOT FILE64)
|
||
|
|
set (CMAKE_REQUIRED_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS} /D_LARGEFILE_SOURCE)
|
||
|
|
unset (HAVE_SIZEOF_OFF_T CACHE)
|
||
|
|
unset (SIZEOF_OFF_T CACHE)
|
||
|
|
unset (SIZEOF_OFF_T_CODE CACHE)
|
||
|
|
message (STATUS "")
|
||
|
|
message (STATUS "Checking size of off_t with _LARGEFILE_SOURCE:")
|
||
|
|
check_type_size (off_t SIZEOF_OFF_T)
|
||
|
|
message (STATUS "Checking size of off_t with _LARGEFILE_SOURCE: ${SIZEOF_OFF_T}")
|
||
|
|
if (SIZEOF_OFF_T EQUAL 8)
|
||
|
|
set (_LARGEFILE_SOURCE 1 CACHE INTERNAL "")
|
||
|
|
set (LARGE_FILES_DEFINITIONS ${LARGE_FILES_DEFINITIONS} "/D_LARGEFILE_SOURCE" CACHE INTERNAL "64-bit off_t required definitions")
|
||
|
|
set (FILE64 TRUE)
|
||
|
|
else ()
|
||
|
|
cmake_pop_check_state()
|
||
|
|
set (FILE64 FALSE)
|
||
|
|
endif ()
|
||
|
|
endif ()
|
||
|
|
|
||
|
|
message (STATUS "")
|
||
|
|
if (FILE64)
|
||
|
|
set (${VARIABLE} 1 CACHE INTERNAL "Result of tests for large file support" FORCE)
|
||
|
|
if (NOT SIZEOF_OFF_T_REQURED_DEFINITIONS)
|
||
|
|
message (STATUS "Result of checking large files support: supported")
|
||
|
|
else ()
|
||
|
|
message (STATUS "Result of checking large files support: supported with ${LARGE_FILES_DEFINITIONS}")
|
||
|
|
message (STATUS "Add LARGE_FILES_DEFINITIONS to your compiler definitions or configure with _FILE_OFFSET_BITS,")
|
||
|
|
message (STATUS "_FILE_OFFSET_BITS_CODE, _LARGE_FILES and _LARGEFILE_SOURCE variables.")
|
||
|
|
endif ()
|
||
|
|
else ()
|
||
|
|
message ("Result of checking large files support: not supported")
|
||
|
|
set (${VARIABLE} 0 CACHE INTERNAL "Result of test for large file support" FORCE)
|
||
|
|
endif ()
|
||
|
|
message ("")
|
||
|
|
message ("")
|
||
|
|
|
||
|
|
endif ()
|
||
|
|
|
||
|
|
endif (NOT DEFINED ${VARIABLE})
|
||
|
|
|
||
|
|
endmacro (TEST_LARGE_FILES VARIABLE)
|