Multi core make

.buildbot/openwrt/build.sh

@@ -41,7 +41,7 @@ echo "CONFIG_KERNEL_NVME_HWMON=y" >> .config
 echo "CONFIG_KERNEL_NVME_MULTIPATH=n" >> .config
 
 # Kernel modules
-make -B target/linux
+${MAKE} -B target/linux
 
 ${MAKE} package/i2c-tools/compile
 make package/kmod-i2c-mux-pinctrl/compile
@@ -53,7 +53,7 @@ ${MAKE} package/asterisk-chan-quectel/compile
 ${MAKE} package/collectd/compile
 
 # Kernel image
-make -B target/linux
+${MAKE} -B target/linux
 
 sdkdir=$(pwd)
 cd ${pwd}