--- openl2tp-1.8/Makefile.orig	2020-07-11 10:04:54.485853377 +0300
+++ openl2tp-1.8/Makefile	2020-07-11 10:21:10.616327547 +0300
@@ -69,13 +69,13 @@
 
 # END CONFIGURABLE SETTINGS
 
-AS		= $(CROSS_COMPILE)as
-LD		= $(CROSS_COMPILE)ld
-CC		= $(CROSS_COMPILE)gcc
-AR		= $(CROSS_COMPILE)ar
-NM		= $(CROSS_COMPILE)nm
-STRIP		= $(CROSS_COMPILE)strip
-INSTALL		= $(CROSS_COMPILE)install
+AS		?= $(CROSS_COMPILE)as
+LD		?= $(CROSS_COMPILE)ld
+CC		?= $(CROSS_COMPILE)gcc
+AR		?= $(CROSS_COMPILE)ar
+NM		?= $(CROSS_COMPILE)nm
+STRIP		?= $(CROSS_COMPILE)strip
+INSTALL		?= $(CROSS_COMPILE)install
 
 ifneq ($(READLINE_DIR),)
 READLINE_LDFLAGS=	-L $(READLINE_DIR)/lib