85a438fc78
The stddef.h header checks/sets various hardcoded toolchain/os specific macro guards to prevent redefining types such as ptrdiff_t, wchar_t, or size_t. However, without this patch, the file does not check/set the typedef macro guards for musl libc. This causes types such as size_t to be defined twice for files which include both musl's stdlib.h as well as GCC's ginclude/stddef.h. This is, for example, the case for libgo/sysinfo.c. If libgo/sysinfo.c has multiple typedefs for size_t this confuses -fdump-go-spec and causes size_t not to be included in the generated type definitions thereby causing a gcc-go compilation failure on Alpine Linux Edge (which uses musl libc) with the following error: sysinfo.go:7765:13: error: use of undefined type '_size_t' 7765 | type Size_t _size_t | ^ libcall_posix.go:49:35: error: non-integer len argument in make 49 | b := make([]byte, len) | This commit fixes this issue by ensuring that ptrdiff_t, wchar_t, and size_t are only defined once in the pre-processed libgo/sysinfo.c file by enhancing gcc/ginclude/stddef.h with musl-specific typedef macro guards. gcc/ChangeLog: * ginclude/stddef.h (__DEFINED_ptrdiff_t): Add support for musl libc typedef macro guard. (__DEFINED_size_t): Ditto. (__DEFINED_wchar_t): Ditto. |
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| c++tools | ||
| config | ||
| contrib | ||
| fixincludes | ||
| gcc | ||
| gnattools | ||
| gotools | ||
| include | ||
| INSTALL | ||
| intl | ||
| libada | ||
| libatomic | ||
| libbacktrace | ||
| libcc1 | ||
| libcody | ||
| libcpp | ||
| libdecnumber | ||
| libffi | ||
| libgcc | ||
| libgfortran | ||
| libgo | ||
| libgomp | ||
| libiberty | ||
| libitm | ||
| libobjc | ||
| liboffloadmic | ||
| libphobos | ||
| libquadmath | ||
| libsanitizer | ||
| libssp | ||
| libstdc++-v3 | ||
| libvtv | ||
| lto-plugin | ||
| maintainer-scripts | ||
| zlib | ||
| .dir-locals.el | ||
| .gitattributes | ||
| .gitignore | ||
| ABOUT-NLS | ||
| ar-lib | ||
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| configure | ||
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| COPYING | ||
| COPYING3 | ||
| COPYING3.LIB | ||
| COPYING.LIB | ||
| COPYING.RUNTIME | ||
| depcomp | ||
| install-sh | ||
| libtool-ldflags | ||
| libtool.m4 | ||
| lt~obsolete.m4 | ||
| ltgcc.m4 | ||
| ltmain.sh | ||
| ltoptions.m4 | ||
| ltsugar.m4 | ||
| ltversion.m4 | ||
| MAINTAINERS | ||
| Makefile.def | ||
| Makefile.in | ||
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| missing | ||
| mkdep | ||
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