need to revert parallel building, breaks testsuite compile.

toolchain/uclibc-ng/Makefile

@@ -147,7 +147,7 @@ $(WRKBUILD)/.installed: $(WRKBUILD)/.install_headers
 
 $(WRKBUILD)/.fixup:
 ifeq ($(ADK_UCLIBC_TEST),y)
-	PATH='$(HOST_PATH)' $(MAKE) ${UCLIBC_MAKEOPTS} -C $(WRKBUILD) \
+	PATH='$(HOST_PATH)' $(MAKE) -C $(WRKBUILD) \
 		TEST_INSTALLED_UCLIBC=1 \
 		UCLIBC_ONLY=1 \
 		UCLIBC_EXTRA_CFLAGS="$(TARGET_CFLAGS)" \