sorry, but it is not acceptable to copy executables via ssh to native computers
and execute them there and copy the result back to the build machine during
crosscompilation.
the whole arch-specific stuff is unnecessary when you just use pthread_mutex_t
directly and be done with it. patch attached.
in case there's a system that doesnt use pthreads, fine, then you can do the
arch-specific dance there, but please do not ruin the buildprocess for anyone
using a POSIX conforming system for this madness.

D399: 921_0001-fix-libgpg-error-lock-madness.patch