<<< metadata_duplicate_useflag_description >>> dev-lang/crystal|debug|xgqt@gentoo.org <<< open bugs >>> https://bugs.gentoo.org/929123 dev-lang/crystal-1.12.0_-_ld.lld:_error:_undefined_symbol:__pthread_register_cancel https://bugs.gentoo.org/929989 dev-lang/crystal-1.12.1_-_ld.lld:_error:_undefined_symbol:_getcontext https://bugs.gentoo.org/931100 dev-lang/crystal-1.12.1_-_pthread_support.c:(.text+snip):_undefined_reference_to_gnu_get_libc_version https://bugs.gentoo.org/938470 dev-lang/crystal-1.14.0_does_not_respect_CFLAGS