diff -r df24a4a6dff1 -r 24f4aebfd6a5 make-rules/ips.mk
--- a/make-rules/ips.mk	Mon Aug 12 22:18:08 2013 -0700
+++ b/make-rules/ips.mk	Tue Aug 13 08:45:47 2013 -0700
@@ -182,14 +182,14 @@
 # appropriate conditional dependencies into a python library's
 # runtime-version-generic package to pull in the version-specific bits when the
 # corresponding version of python is on the system.
-$(WS_TOP)/transforms/mkgeneric-python: $(WS_TOP)/make-rules/shared-macros.mk
+$(BUILD_DIR)/mkgeneric-python: $(WS_TOP)/make-rules/shared-macros.mk
 	$(RM) $@
 	$(foreach ver,$(shell echo $(PYTHON_VERSIONS) | tr -d .), \
 		$(call mkgeneric,runtime/python,$(ver)))
 
 # Build Python version-wrapping manifests from the generic version.
-$(MANIFEST_BASE)-%.p5m: %-PYVER.p5m $(WS_TOP)/transforms/mkgeneric-python
-	$(PKGMOGRIFY) -D PYV=### $(WS_TOP)/transforms/mkgeneric-python \
+$(MANIFEST_BASE)-%.p5m: %-PYVER.p5m $(BUILD_DIR)/mkgeneric-python
+	$(PKGMOGRIFY) -D PYV=### $(BUILD_DIR)/mkgeneric-python \
 		$(WS_TOP)/transforms/mkgeneric $< > $@
 	if [ -f $*-GENFRAG.p5m ]; then cat $*-GENFRAG.p5m >> $@; fi
 
@@ -206,14 +206,14 @@
 # appropriate conditional dependencies into a perl library's
 # runtime-version-generic package to pull in the version-specific bits when the
 # corresponding version of perl is on the system.
-$(WS_TOP)/transforms/mkgeneric-perl: $(WS_TOP)/make-rules/shared-macros.mk
+$(BUILD_DIR)/mkgeneric-perl: $(WS_TOP)/make-rules/shared-macros.mk
 	$(RM) $@
 	$(foreach ver,$(shell echo $(PERL_VERSIONS) | tr -d .), \
 		$(call mkgeneric,runtime/perl,$(ver)))
 
 # Build Perl version-wrapping manifests from the generic version.
-$(MANIFEST_BASE)-%.p5m: %-PERLVER.p5m $(WS_TOP)/transforms/mkgeneric-perl
-	$(PKGMOGRIFY) -D PLV=### $(WS_TOP)/transforms/mkgeneric-perl \
+$(MANIFEST_BASE)-%.p5m: %-PERLVER.p5m $(BUILD_DIR)/mkgeneric-perl
+	$(PKGMOGRIFY) -D PLV=### $(BUILD_DIR)/mkgeneric-perl \
 		$(WS_TOP)/transforms/mkgeneric $< > $@
 	if [ -f $*-GENFRAG.p5m ]; then cat $*-GENFRAG.p5m >> $@; fi