Disable pthreads for sh64 for the time being (since it is not

currently supported)

extra/Configs/Config.sh

@@ -58,6 +58,7 @@ config CONFIG_SH4
 
 config CONFIG_SH5
 	select UCLIBC_HAS_MMU
+	select HAS_NO_THREADS
 	select ARCH_HAS_NO_LDSO
 	bool "SH5"