[gentoo-musl] Re: [GSoC] native-clang: daily report 06/29

[Lei Zhang]

2016-06-30 23:50 GMT+08:00 Luca Barbato <lu_zero@g.o>:
> On 30/06/16 17:40, Lei Zhang wrote:
>> I also noticed that gcc's sanitizer doesn't work on the musl based
>> system, so is it forgivable to not support clang's sanitizer either?
>> (clang's sanitizer is implemented in compiler-rt)
>
> package mask the useflag for now, it is less important.
>
> Make sure to open a bug about it on llvm and gcc.

compiler-rt's sanitizer uses some non-POSIX features like <obstack.h>;
I guess gcc's situation is similar. It's not necessarily a bug though.

Actually compiler-rt uses stuff like "#if __linux__ && !__ANDROID__"
to protect code that uses GNU extensions. The fix is simple: replace
it with "#ifdef __GLIBC__". But I'm not sure if this fix has unwanted
impact on other libc like uclibc. It looks uclibc supports certain GNU
extensions that are absent in musl, like <obstack.h>.


Lei