lib: Add SAFE_MKFIFO()

Signed-off-by: Cyril Hrubis <chrubis@suse.cz>
fcntl07: Cleanup and merge with fcntl07B

Signed-off-by: Cyril Hrubis <chrubis@suse.cz>
lib: Remove unused search_path.h and search_path.c

Signed-off-by: Cyril Hrubis <chrubis@suse.cz>