diff options
| -rw-r--r-- | mesonbuild/compilers.py | 37 | ||||
| -rw-r--r-- | test cases/linuxlike/10 large file support/meson.build | 12 |
2 files changed, 45 insertions, 4 deletions
diff --git a/mesonbuild/compilers.py b/mesonbuild/compilers.py index 8c2bb92..8ea161d 100644 --- a/mesonbuild/compilers.py +++ b/mesonbuild/compilers.py @@ -709,7 +709,10 @@ class CCompiler(Compiler): return True # When compiling static libraries, so yes. def get_always_args(self): - return [] + ''' + Args that are always-on for all C compilers other than MSVC + ''' + return ['-pipe'] + get_largefile_args(self) def get_linker_debug_crt_args(self): """ @@ -2025,6 +2028,7 @@ class VisualStudioCCompiler(CCompiler): '3': ['/W4']} self.base_options = ['b_pch'] # FIXME add lto, pgo and the like + # Override CCompiler.get_always_args def get_always_args(self): return self.always_args @@ -2263,6 +2267,34 @@ def get_gcc_soname_args(gcc_type, prefix, shlib_name, suffix, path, soversion, i else: raise RuntimeError('Not implemented yet.') +def get_compiler_is_linuxlike(compiler): + if (getattr(compiler, 'gcc_type', None) == GCC_STANDARD) or \ + (getattr(compiler, 'clang_type', None) == CLANG_STANDARD) or \ + (getattr(compiler, 'icc_type', None) == ICC_STANDARD): + return True + return False + +def get_largefile_args(compiler): + ''' + Enable transparent large-file-support for 32-bit UNIX systems + ''' + if get_compiler_is_linuxlike(compiler): + # Enable large-file support unconditionally on all platforms other + # than macOS and Windows. macOS is now 64-bit-only so it doesn't + # need anything special, and Windows doesn't have automatic LFS. + # You must use the 64-bit counterparts explicitly. + # glibc, musl, and uclibc, and all BSD libcs support this. On Android, + # support for transparent LFS is available depending on the version of + # Bionic: https://github.com/android/platform_bionic#32-bit-abi-bugs + # https://code.google.com/p/android/issues/detail?id=64613 + # + # If this breaks your code, fix it! It's been 20+ years! + return ['-D_FILE_OFFSET_BITS=64'] + # We don't enable -D_LARGEFILE64_SOURCE since that enables + # transitionary features and must be enabled by programs that use + # those features explicitly. + return [] + class GnuCompiler: # Functionality that is common to all GNU family compilers. @@ -2311,9 +2343,6 @@ class GnuCompiler: return apple_buildtype_linker_args[buildtype] return gnulike_buildtype_linker_args[buildtype] - def get_always_args(self): - return ['-pipe'] - def get_pch_suffix(self): return 'gch' diff --git a/test cases/linuxlike/10 large file support/meson.build b/test cases/linuxlike/10 large file support/meson.build new file mode 100644 index 0000000..aa4eccf --- /dev/null +++ b/test cases/linuxlike/10 large file support/meson.build @@ -0,0 +1,12 @@ +project('trivial test', 'c') + +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') |