mgorny added inline comments. > kmp_i18n.c:812 > > - #if KMP_OS_LINUX > + #if KMP_OS_LINUX && __GLIBC__ > Hmm, wouldn't it be reasonable to just check for __GLIBC__? I think non-Linux (Hurd?) glibc would have the same signature, wouldn't it? https://reviews.llvm.org/D25071