default "0.9.29" if UCLIBC_VERSION_0_9_29
default "0.9.30.1" if UCLIBC_VERSION_0_9_30_1
default "0.9.30+nptl" if UCLIBC_VERSION_NPTL
default "0.9.29" if UCLIBC_VERSION_0_9_29
default "0.9.30.1" if UCLIBC_VERSION_0_9_30_1
default "0.9.30+nptl" if UCLIBC_VERSION_NPTL