Index: src/prelude/Makefile.am
===================================================================
--- src/prelude/Makefile.am	(revision 8c680e9cca0c38ffc3c4c20aee2dcee9c0fcfcfe)
+++ src/prelude/Makefile.am	(revision 307a732f5fa4b97b19f405fc215fcd76f473e3a1)
@@ -23,4 +23,6 @@
 noinst_DATA = ../libcfa/libcfa-prelude.c
 
+CC = ${abs_top_srcdir}/src/driver/cfa
+
 $(DEPDIR) :
 	mkdir $(DEPDIR)
@@ -45,6 +47,6 @@
 
 # create forward declarations for cfa builtins
-builtins.cf : builtins.c
-	${AM_V_GEN}@BACKEND_CC@ -E -P ${<} -o ${@} -MD -MP -MF $(DEPDIR)/builtins.Po
+builtins.cf : builtins.c ${CC}
+	${AM_V_GEN}${CC} -E -P ${<} -o ${@} -MD -MP -MF $(DEPDIR)/builtins.Po
 	${AM_V_at}sed -i 's/builtins.o/builtins.cf/g' $(DEPDIR)/builtins.Po
 
Index: src/prelude/Makefile.in
===================================================================
--- src/prelude/Makefile.in	(revision 8c680e9cca0c38ffc3c4c20aee2dcee9c0fcfcfe)
+++ src/prelude/Makefile.in	(revision 307a732f5fa4b97b19f405fc215fcd76f473e3a1)
@@ -95,5 +95,5 @@
 AWK = @AWK@
 BACKEND_CC = @BACKEND_CC@
-CC = @CC@
+CC = ${abs_top_srcdir}/src/driver/cfa
 CCAS = @CCAS@
 CCASDEPMODE = @CCASDEPMODE@
@@ -444,6 +444,6 @@
 
 # create forward declarations for cfa builtins
-builtins.cf : builtins.c
-	${AM_V_GEN}@BACKEND_CC@ -E -P ${<} -o ${@} -MD -MP -MF $(DEPDIR)/builtins.Po
+builtins.cf : builtins.c ${CC}
+	${AM_V_GEN}${CC} -E -P ${<} -o ${@} -MD -MP -MF $(DEPDIR)/builtins.Po
 	${AM_V_at}sed -i 's/builtins.o/builtins.cf/g' $(DEPDIR)/builtins.Po