fix places where _BSD_SOURCE failed to yield a superset of _XOPEN_SOURCE
[musl] / arch / powerpc /
drwxr-xr-x   ..
-rw-r--r-- 2207 atomic.h
drwxr-xr-x - bits
-rw-r--r-- 196 crt_arch.h
-rw-r--r-- 534 pthread_arch.h
-rw-r--r-- 934 reloc.h
-rw-r--r-- 983 syscall_arch.h