forked from osmocom/wireshark
Clean up tests.
On Windows with MSVC, just assume we have 64-bit file offset support, including _fseeki64() and _ftelli64(). On UN*X, test for Large File Support and for fseeko()/ftello(), and for what #defines are needed to enable them. On Windows without MSVC, test for Large File Support, but assume we have _fseeki64() and _ftelli64(); what *should* we be doing? Clean up indentation and else()/endif() arguments while we're at it. Change-Id: I801d1f4059abbed2d5123d2375a560634a9ee056 Reviewed-on: https://code.wireshark.org/review/28781 Petri-Dish: Guy Harris <guy@alum.mit.edu> Tested-by: Petri Dish Buildbot Reviewed-by: Guy Harris <guy@alum.mit.edu>
This commit is contained in:
Guy Harris
parent
977f4c2e68
commit
b622b1f5c1
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@ -20,102 +20,113 @@
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MACRO(GMX_TEST_LARGE_FILES VARIABLE)
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IF(NOT DEFINED ${VARIABLE})
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if(CMAKE_C_COMPILER_ID MATCHES "MSVC")
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#
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# This is Visual Studio; Visual Studio has supported
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# _fseeki64 and _ftelli64 since Visual Studio 2005 / MSVCR80,
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# and we require newer versions, so we know we have them.
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#
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MESSAGE(STATUS "_fseeki64 and _ftelli64 are present")
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else(CMAKE_C_COMPILER_ID MATCHES "MSVC")
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#
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# This is UN*X, or some other Windows compiler.
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#
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# For UN*X, we do the Large File Support tests, to see
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# whether it's present and, if so what we need to define
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# to enable it.
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#
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# XXX - what's the right thing to do on Windows with,
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# for example, MinGW?
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#
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# On most platforms it is probably overkill to first test
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# the flags for 64-bit off_t, and then separately fseeko.
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# However, in the future we might have 128-bit seek offsets
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# to support 128-bit filesystems that allow 128-bit offsets
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# (ZFS), so it might be dangerous to indiscriminately set
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# e.g. _FILE_OFFSET_BITS=64.
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#
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MESSAGE(STATUS "Checking for 64-bit off_t")
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# On most platforms it is probably overkill to first test the flags for 64-bit off_t,
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# and then separately fseeko. However, in the future we might have 128-bit filesystems
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# (ZFS), so it might be dangerous to indiscriminately set e.g. _FILE_OFFSET_BITS=64.
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MESSAGE(STATUS "Checking for 64-bit off_t")
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# First check without any special flags
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TRY_COMPILE(FILE64_OK "${CMAKE_BINARY_DIR}"
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"${CMAKE_SOURCE_DIR}/cmake/TestFileOffsetBits.c")
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if(FILE64_OK)
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MESSAGE(STATUS "64-bit off_t is present with no special flags")
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endif(FILE64_OK)
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if(NOT FILE64_OK)
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# Test with _FILE_OFFSET_BITS=64
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# First check without any special flags
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TRY_COMPILE(FILE64_OK "${CMAKE_BINARY_DIR}"
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"${CMAKE_SOURCE_DIR}/cmake/TestFileOffsetBits.c"
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COMPILE_DEFINITIONS "-D_FILE_OFFSET_BITS=64" )
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"${CMAKE_SOURCE_DIR}/cmake/TestFileOffsetBits.c")
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if(FILE64_OK)
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MESSAGE(STATUS "64-bit off_t is present with _FILE_OFFSET_BITS=64")
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set(_FILE_OFFSET_BITS 64 CACHE INTERNAL "64-bit off_t requires _FILE_OFFSET_BITS=64")
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MESSAGE(STATUS "64-bit off_t is present with no special flags")
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endif(FILE64_OK)
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endif(NOT FILE64_OK)
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if(NOT FILE64_OK)
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# Test with _LARGE_FILES
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TRY_COMPILE(FILE64_OK "${CMAKE_BINARY_DIR}"
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"${CMAKE_SOURCE_DIR}/cmake/TestFileOffsetBits.c"
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COMPILE_DEFINITIONS "-D_LARGE_FILES" )
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if(FILE64_OK)
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MESSAGE(STATUS "64-bit off_t is present with _LARGE_FILES")
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set(_LARGE_FILES 1 CACHE INTERNAL "64-bit off_t requires _LARGE_FILES")
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endif(FILE64_OK)
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endif(NOT FILE64_OK)
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if(NOT FILE64_OK)
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# Test with _FILE_OFFSET_BITS=64
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TRY_COMPILE(FILE64_OK "${CMAKE_BINARY_DIR}"
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"${CMAKE_SOURCE_DIR}/cmake/TestFileOffsetBits.c"
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COMPILE_DEFINITIONS "-D_FILE_OFFSET_BITS=64" )
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if(FILE64_OK)
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MESSAGE(STATUS "64-bit off_t is present with _FILE_OFFSET_BITS=64")
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set(_FILE_OFFSET_BITS 64 CACHE INTERNAL "64-bit off_t requires _FILE_OFFSET_BITS=64")
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endif(FILE64_OK)
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endif(NOT FILE64_OK)
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if(NOT FILE64_OK)
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# Test with _LARGEFILE_SOURCE
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TRY_COMPILE(FILE64_OK "${CMAKE_BINARY_DIR}"
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"${CMAKE_SOURCE_DIR}/cmake/TestFileOffsetBits.c"
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COMPILE_DEFINITIONS "-D_LARGEFILE_SOURCE" )
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if(FILE64_OK)
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MESSAGE(STATUS "64-bit off_t is present with _LARGEFILE_SOURCE")
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set(_LARGEFILE_SOURCE 1 CACHE INTERNAL "64-bit off_t requires _LARGEFILE_SOURCE")
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endif(FILE64_OK)
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endif(NOT FILE64_OK)
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if(NOT FILE64_OK)
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# Test with _LARGE_FILES
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TRY_COMPILE(FILE64_OK "${CMAKE_BINARY_DIR}"
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"${CMAKE_SOURCE_DIR}/cmake/TestFileOffsetBits.c"
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COMPILE_DEFINITIONS "-D_LARGE_FILES" )
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if(FILE64_OK)
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MESSAGE(STATUS "64-bit off_t is present with _LARGE_FILES")
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set(_LARGE_FILES 1 CACHE INTERNAL "64-bit off_t requires _LARGE_FILES")
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endif(FILE64_OK)
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endif(NOT FILE64_OK)
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if(NOT FILE64_OK AND WIN32)
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# Visual C++ has supported fseeki64 since Visual Studio 2005 / MSVCR80.
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MESSAGE(STATUS "64-bit off_t is not present")
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MESSAGE(STATUS "_fseeki64 is present")
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set(HAVE__FSEEKI64 1 CACHE INTERNAL "64-bit file offsets require _fseeki64")
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endif(NOT FILE64_OK)
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if(NOT FILE64_OK)
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MESSAGE(STATUS "64-bit file offset support not available")
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else(NOT FILE64_OK)
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# Set the flags we might have determined to be required above
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configure_file("${CMAKE_SOURCE_DIR}/cmake/TestLargeFiles.c.cmakein"
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"${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/TestLargeFiles.c")
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MESSAGE(STATUS "Checking for fseeko/ftello")
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# Test if ftello/fseeko are available
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TRY_COMPILE(FSEEKO_COMPILE_OK "${CMAKE_BINARY_DIR}"
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"${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/TestLargeFiles.c")
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if(FSEEKO_COMPILE_OK)
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MESSAGE(STATUS "Checking for fseeko/ftello - present")
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endif(FSEEKO_COMPILE_OK)
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if(NOT FSEEKO_COMPILE_OK)
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# glibc 2.2 neds _LARGEFILE_SOURCE for fseeko (but not 64-bit off_t...)
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TRY_COMPILE(FSEEKO_COMPILE_OK "${CMAKE_BINARY_DIR}"
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"${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/TestLargeFiles.c"
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if(NOT FILE64_OK)
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# Test with _LARGEFILE_SOURCE
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TRY_COMPILE(FILE64_OK "${CMAKE_BINARY_DIR}"
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"${CMAKE_SOURCE_DIR}/cmake/TestFileOffsetBits.c"
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COMPILE_DEFINITIONS "-D_LARGEFILE_SOURCE" )
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if(FSEEKO_COMPILE_OK)
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MESSAGE(STATUS "Checking for fseeko/ftello - present with _LARGEFILE_SOURCE")
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set(_LARGEFILE_SOURCE 1 CACHE INTERNAL "64-bit fseeko requires _LARGEFILE_SOURCE")
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endif(FSEEKO_COMPILE_OK)
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endif(NOT FSEEKO_COMPILE_OK)
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if(FILE64_OK)
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MESSAGE(STATUS "64-bit off_t is present with _LARGEFILE_SOURCE")
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set(_LARGEFILE_SOURCE 1 CACHE INTERNAL "64-bit off_t requires _LARGEFILE_SOURCE")
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endif(FILE64_OK)
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endif(NOT FILE64_OK)
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endif(NOT FILE64_OK)
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if(NOT FILE64_OK)
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MESSAGE(STATUS "64-bit file offset support not available")
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else(NOT FILE64_OK)
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# Set the flags we might have determined to be required above
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configure_file("${CMAKE_SOURCE_DIR}/cmake/TestLargeFiles.c.cmakein"
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"${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/TestLargeFiles.c")
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if(FSEEKO_COMPILE_OK)
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SET(${VARIABLE} 1 CACHE INTERNAL "Result of test for large file support" FORCE)
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set(HAVE_FSEEKO 1 CACHE INTERNAL "64-bit fseeko is available" FORCE)
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else(FSEEKO_COMPILE_OK)
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if (HAVE__FSEEKI64)
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SET(${VARIABLE} 1 CACHE INTERNAL "Result of test for large file support" FORCE)
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SET(HAVE__FSEEKI64 1 CACHE INTERNAL "Windows 64-bit fseek" FORCE)
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else (HAVE__FSEEKI64)
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MESSAGE(STATUS "Checking for fseeko/ftello - not found")
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SET(${VARIABLE} 0 CACHE INTERNAL "Result of test for large file support" FORCE)
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endif (HAVE__FSEEKI64)
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endif(FSEEKO_COMPILE_OK)
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#
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# If this is Windows, assume we have _fseeki64/_ftelli64
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# available. If this is UN*X, check for fseeko/ftello.
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#
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if(NOT WIN32)
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MESSAGE(STATUS "Checking for fseeko/ftello")
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# Test if ftello/fseeko are available
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TRY_COMPILE(FSEEKO_COMPILE_OK "${CMAKE_BINARY_DIR}"
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"${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/TestLargeFiles.c")
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if(FSEEKO_COMPILE_OK)
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MESSAGE(STATUS "Checking for fseeko/ftello - present")
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endif(FSEEKO_COMPILE_OK)
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if(NOT FSEEKO_COMPILE_OK)
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# glibc 2.2 neds _LARGEFILE_SOURCE for fseeko (but not 64-bit off_t...)
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TRY_COMPILE(FSEEKO_COMPILE_OK "${CMAKE_BINARY_DIR}"
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"${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/TestLargeFiles.c"
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COMPILE_DEFINITIONS "-D_LARGEFILE_SOURCE" )
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if(FSEEKO_COMPILE_OK)
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MESSAGE(STATUS "Checking for fseeko/ftello - present with _LARGEFILE_SOURCE")
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set(_LARGEFILE_SOURCE 1 CACHE INTERNAL "64-bit fseeko requires _LARGEFILE_SOURCE")
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endif(FSEEKO_COMPILE_OK)
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endif(NOT FSEEKO_COMPILE_OK)
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if(FSEEKO_COMPILE_OK)
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SET(${VARIABLE} 1 CACHE INTERNAL "Result of test for large file support" FORCE)
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set(HAVE_FSEEKO 1 CACHE INTERNAL "64-bit fseeko is available" FORCE)
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else(FSEEKO_COMPILE_OK)
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MESSAGE(STATUS "Checking for fseeko/ftello - not found")
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SET(${VARIABLE} 0 CACHE INTERNAL "Result of test for large file support" FORCE)
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endif(FSEEKO_COMPILE_OK)
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endif(NOT WIN32)
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endif(NOT FILE64_OK)
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endif(CMAKE_C_COMPILER_ID MATCHES "MSVC")
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ENDIF(NOT DEFINED ${VARIABLE})
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ENDMACRO(GMX_TEST_LARGE_FILES VARIABLE)
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