glibc-2.23 fails to build for mips with nptl/libpthread.so:(*IND*+0x0): multiple definition of `vfork@GLIBC_2.0'; This was fixed in glibc-2.24. Backport the fix for glibc-2.23. Fixes #1744 Signed-off-by: Chris Packham <judge.packham@gmail.com>