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| author | Lasse Collin <lasse.collin@tukaani.org> | 2023-09-27 00:58:17 +0300 |
|---|---|---|
| committer | Lasse Collin <lasse.collin@tukaani.org> | 2023-10-26 21:46:06 +0300 |
| commit | 597f49b61475438a43a417236989b2acc968a686 (patch) | |
| tree | 3335bd67f83c2fb7cf41d93ec1b01b4a2129a66e /CMakeLists.txt | |
| parent | CMake: Generate and install liblzma.pc if not using MSVC. (diff) | |
| download | xz-597f49b61475438a43a417236989b2acc968a686.tar.xz | |
CMake: Use -D_FILE_OFFSET_BITS=64 if (and only if) needed.
A CMake option LARGE_FILE_SUPPORT is created if and only if
-D_FILE_OFFSET_BITS=64 affects sizeof(off_t).
This is needed on many 32-bit platforms and even with 64-bit builds
with MinGW-w64 to get support for files larger than 2 GiB.
Diffstat (limited to 'CMakeLists.txt')
| -rw-r--r-- | CMakeLists.txt | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index 0437d7fb..61ff9d94 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -9,7 +9,6 @@ # # On some platforms this builds also xz and xzdec, but these are # highly experimental and meant for testing only: -# - No large file support on those 32-bit platforms that need it # - No translations # # Other missing things: @@ -51,6 +50,7 @@ include(CheckIncludeFile) include(CheckSymbolExists) include(CheckStructHasMember) include(CheckCSourceCompiles) +include(cmake/tuklib_large_file_support.cmake) include(cmake/tuklib_integer.cmake) include(cmake/tuklib_cpucores.cmake) include(cmake/tuklib_physmem.cmake) @@ -150,6 +150,11 @@ add_compile_definitions( # it also adds the definitions to CMAKE_REQUIRED_DEFINITIONS. tuklib_use_system_extensions(ALL) +# Check for large file support. It's required on some 32-bit platforms and +# even on 64-bit MinGW-w64 to get 64-bit off_t. This can be forced off on +# the CMake command line if needed: -DLARGE_FILE_SUPPORT=OFF +tuklib_large_file_support(ALL) + # This is needed by liblzma and xz. tuklib_integer(ALL) |