--- Makefile
+++ Makefile
@@ -51,6 +51,10 @@ ifneq ($(strip $(shell $(CC) -v 2>&1 |gr
  solaris = true
 endif
 
+ifneq ($(strip $(shell $(CC) -v 2>&1 |grep "sparc64")),)
+ bigendian = true
+endif
+
 # warn if using non-gnu make
 
 ifeq ($(strip $(shell make -v |grep "GNU")),)