nptl/sysdeps/unix/sysv/linux/i386: enable USE___THREAD for assembler
NPTL defines errno as __thread variable. Define USE___THREAD so proper
errno assignment is used in assembly files.
This fixes segfault while building python.
Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Signed-off-by: Natanael Copa <natanael.copa@gmail.com>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>