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meson/test cases/linuxlike/10 large file support/meson.build

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Add UNIX large file support via compiler always-args On 32-bit Linux and BSD, all libcs support this. Musl always enables it, and UClibc behaves like Glibc unless it's built without large file support (which is a terrible idea). http://wiki.musl-libc.org/wiki/FAQ#Q:_do_i_need_to_define_LARGEFILE64_SOURCE_to_get_64bit_off_t_.3F https://git.uclibc.org/uClibc/tree/include/features.h#n326 macOS now only ships 64-bit, so this is irrelevant there. 32-bit Windows and older versions of Bionic do not have transparent large file support and you must use lseek64, etc there, so this won't affect those. Newer Bionic versions behave like Glibc in theory. https://msdn.microsoft.com/en-us/library/1yee101t.aspx http://code.google.com/p/android/issues/detail?id=64613 Includes a linuxlike test for this. Closes https://github.com/mesonbuild/meson/issues/1032
8 years ago
project('trivial test', 'c')
Skip some linuxlike tests which don't work on Cygwin
8 years ago
if host_machine.system() == 'cygwin'
error('MESON_SKIP_TEST _FILE_OFFSET_BITS not yet supported on Cygwin.')
endif
Add UNIX large file support via compiler always-args On 32-bit Linux and BSD, all libcs support this. Musl always enables it, and UClibc behaves like Glibc unless it's built without large file support (which is a terrible idea). http://wiki.musl-libc.org/wiki/FAQ#Q:_do_i_need_to_define_LARGEFILE64_SOURCE_to_get_64bit_off_t_.3F https://git.uclibc.org/uClibc/tree/include/features.h#n326 macOS now only ships 64-bit, so this is irrelevant there. 32-bit Windows and older versions of Bionic do not have transparent large file support and you must use lseek64, etc there, so this won't affect those. Newer Bionic versions behave like Glibc in theory. https://msdn.microsoft.com/en-us/library/1yee101t.aspx http://code.google.com/p/android/issues/detail?id=64613 Includes a linuxlike test for this. Closes https://github.com/mesonbuild/meson/issues/1032
8 years ago
cc = meson.get_compiler('c')
size = cc.sizeof('off_t')
assert(size == 8, 'off_t size is @0@ bytes instead of 8'.format(size))
code = '''#if !defined(_FILE_OFFSET_BITS) || (_FILE_OFFSET_BITS != 64)
#error "Large-file support was not enabled"
#endif'''
assert(cc.compiles(code, name : 'checking for LFS'), 'Large file support was not enabled')