diff -r c1bd57533c56 -r c38f396e1cd0 omadrm/drmengine/group/CryptoPrep.flm
--- a/omadrm/drmengine/group/CryptoPrep.flm	Wed Oct 13 14:51:23 2010 +0300
+++ b/omadrm/drmengine/group/CryptoPrep.flm	Tue Oct 26 15:52:41 2010 +0100
@@ -13,26 +13,30 @@
 # Description: DRM Crypto Library build configuration
 #
 
-CREATABLEPATH:=$(EXTENSION_ROOT)/../drmengine/drmcrypto/build
-CLEANTARGETS:=$(CREATABLEPATH)/cmlacrypto.cpp $(CREATABLEPATH)/omacrypto.cpp
+ifeq ($(_CRYPTOPREP_FLM_),)
+# first instance of this FLM
+_CRYPTOPREP_FLM_:= 1
+
+
+# NB: abspath doesn't like Windows drive letters
+CRYPTO_SOURCE_DRIVE:=$(firstword $(subst :, ,$(EXTENSION_ROOT)))
+ifeq ($(CRYPTO_SOURCE_DRIVE),$(EXTENSION_ROOT))
+CREATABLEPATH:=$(abspath $(EXTENSION_ROOT)/../drmengine/drmcrypto/build))
+else
+CRYPTO_ABSPATH:=$(abspath $(subst $(CRYPTO_SOURCE_DRIVE):,,$(EXTENSION_ROOT)/../drmengine/drmcrypto/build))
+CREATABLEPATH:=$(CRYPTO_SOURCE_DRIVE):$(CRYPTO_ABSPATH)
+endif
 
 crypto_files:=$(wildcard $(EXTENSION_ROOT)/../drmengine/drmcrypto/CMLA/*.cpp)
 
-
-GUARD:=done_$(call sanitise,$(CLEANTARGETS))
-ifeq ($($(GUARD)),)
-$(GUARD):=1
-
-BITMAP :: $(CREATABLEPATH)
+ifeq ($(crypto_files),)
+CMLA_CRYPTO_SOURCE:=$(CREATABLEPATH)/../stub/CmlaCryptoStub.cpp
+else
+CMLA_CRYPTO_SOURCE:=$(CREATABLEPATH)/../CMLA/CmlaCrypto.cpp
+endif
 
-ifeq ($(crypto_files),)
-	$(GNUCP) $(CREATABLEPATH)/../stub/CmlaCryptoStub.cpp $(CREATABLEPATH)/cmlacrypto.cpp
-else
-	$(GNUCP) $(CREATABLEPATH)/../CMLA/CmlaCrypto.cpp $(CREATABLEPATH)/cmlacrypto.cpp
-endif
-	$(GNUCP) $(CREATABLEPATH)/../src/OmaCrypto.cpp $(CREATABLEPATH)/omacrypto.cpp
-	$(GNUCHMOD) u+w $(CREATABLEPATH)/cmlacrypto.cpp
-	$(GNUCHMOD) u+w $(CREATABLEPATH)/omacrypto.cpp
+$(CREATABLEPATH)/cmlacrypto.cpp: $(CMLA_CRYPTO_SOURCE)
+	$(GNUCP) $< $@
 
 # Create dirs
 $(call makepath,$(CREATABLEPATH))
@@ -40,11 +44,10 @@
 ## Clean up
 $(eval $(call GenerateStandardCleanTarget,$(CLEANTARGETS)))
 
-## What
-$(eval $(call whatmacro,$(CLEANTARGETS)))
-
+$(info <debug>$(PLATFORM) $(CFG), selecting $(CMLA_CRYPTO_SOURCE)</debug>)
 
 else
-$(info <debug>$(PLATFORM) $(CFG), up-to-date $(CLEANTARGETS)</debug>)
+$(info <debug>$(PLATFORM) $(CFG), already handled $(CMLA_CRYPTO_SOURCE)</debug>)
+# FLM already included - don't duplicate the targets
 
 endif