diff -Naur source_bcm_wimax/Makefile source_bcm_wimax.patched//Makefile
--- source_bcm_wimax/Makefile	2012-04-27 15:25:09.000000000 -0600
+++ source_bcm_wimax.patched//Makefile	2012-07-11 13:23:59.982596150 -0600
@@ -2,10 +2,10 @@
 # Customized for ZTE AX226
 # Makefile recreated be Minhazul Haq Shawon
 
-KERNEL_VER 	:= $(shell uname -r)
-KDIR 		:= /lib/modules/$(KERNEL_VER)/build
-KSRC 		:= /lib/modules/$(KERNEL_VER)/source
-INSTALL_DIR :=  /lib/modules/$(KERNEL_VER)/kernel/drivers/staging/bcm/
+KVERS 		?= $(shell uname -r)
+KDIR 		:= /lib/modules/$(KVERS)/build
+KSRC 		:= /lib/modules/$(KVERS)/source
+INSTALL_DIR :=  /lib/modules/$(KVERS)/kernel/drivers/staging/bcm/
 TARGET_DRV 	:= bcm_wimax
 EXTRAFLAGS	:= -Wall O=$(KDIR)
 PWD:= $(shell pwd)
