--- /dev/null
+
+define c-suffix-rules
+# $1 = dir
+# $2 = distdir
+# $3 = way
+# $4 = use GHC (YES/NO)
+
+# UseGhcForCc is only relevant when not booting from HC files.
+ifeq "$4" "YES"
+
+$1/$2/build/%.$$($3_osuf) : $1/%.c $$(MKDIRHIER) $$($1_$2_HC_DEP)
+ $$(RM) $$@
+ $$(MKDIRHIER) $$(dir $$@)
+ $$($1_$2_HC) $$($1_$2_$3_GHC_CC_OPTS) -c $$< -o $$@
+
+$1/$2/build/%.$$($3_osuf) : $1/$2/build/%.c $$($1_$2_HC_DEP)
+ $$(RM) $$@
+ $$($1_$2_HC) $$($1_$2_$3_GHC_CC_OPTS) -c $$< -o $$@
+
+$1/$2/build/%.$$($3_osuf) : $1/$2/build/%.$$($3_way_)s $$($1_$2_HC_DEP)
+ $$(RM) $$@
+ $$($1_$2_HC) $$($1_$2_$3_GHC_CC_OPTS) -c $$< -o $$@
+
+$1/$2/build/%.$$($3_osuf) : $1/%.S $$(MKDIRHIER) $$($1_$2_HC_DEP)
+ $$(RM) $$@
+ $$(MKDIRHIER) $$(dir $$@)
+ $$($1_$2_HC) $$($1_$2_$3_GHC_CC_OPTS) -c $$< -o $$@
+
+$1/$2/build/%.$$($3_way_)s : $1/$2/build/%.c $$($1_$2_HC_DEP)
+ $$(RM) $$@
+ $$($1_$2_HC) $$($1_$2_$3_GHC_CC_OPTS) -S $$< -o $$@
+
+else
+
+$1/$2/build/%.$$($3_osuf) : $1/%.c $$(MKDIRHIER)
+ $$(RM) $$@
+ $$(MKDIRHIER) $$(dir $$@)
+ $$(CC) $$($1_$2_$3_ALL_CC_OPTS) -c $$< -o $$@
+
+$1/$2/build/%.$$($3_osuf) : $1/$2/build/%.c
+ $$(RM) $$@
+ $$(CC) $$($1_$2_$3_ALL_CC_OPTS) -c $$< -o $$@
+
+$1/$2/build/%.$$($3_osuf) : $1/$2/build/%.$$($3_way_)s
+ $$(RM) $$@
+ $$(AS) $$($1_$2_$3_ALL_AS_OPTS) -o $$@ $$<
+
+$1/$2/build/%.$$($3_osuf) : $1/%.S $$(MKDIRHIER)
+ $$(RM) $$@
+ $$(MKDIRHIER) $$(dir $$@)
+ $$(CC) $$($1_$2_$3_ALL_CC_OPTS) -c $$< -o $$@
+
+$1/$2/build/%.$$($3_way_)s : $1/$2/build/%.c
+ $$(RM) $$@
+ $$(CC) $$($1_$2_$3_ALL_CC_OPTS) -S $$< -o $$@
+
+endif
+
+endef
+