--- ./original files/Makefile.common.mk	2007-06-20 09:35:00.000000000 +0100
+++ ./modified files/Makefile.common.mk	2009-02-05 00:13:54.000000000 +0000
@@ -14,5 +14,20 @@
 ######################################
 AR=ar r
 EXTRACT=ar x
-RM=grm -f
+
+GRMPATH=$(which grm)
+
+ifneq ($(strip $(GRMPATH)),)
+    RM=grm -f
+endif
+
+RMPATH=$(which rm)
+
+ifneq ($(strip $(RMPATH)),)
+    RM=rm -f
+endif
+
+ifndef RM
+    $(error No rm equivalent command found)
+endif
 MOD_FSUF=.mod