Modified the Makefiles to include a "make uninstall" to remove an
installed PDK.

Makefile.in

diff --git a/Makefile.in b/Makefile.in
index a4e8a02..29ee1a3 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -30,6 +30,10 @@
 # 	clean up all files generated by 'make' and remove
 #	all log files.
 #
+# make uninstall
+#
+#	remove the installed PDKs.
+#
 #---------------------------------------------------
 #
 # The following definitions are tied to the contents
@@ -49,6 +53,7 @@
 
 TECHS_ALL = $(addprefix tech_,$(TECHS))
 TECHS_INSTALL = $(addprefix install-,$(TECHS))
+TECHS_UNINSTALL = $(addprefix uninstall-,$(TECHS))
 TECHS_CLEAN = $(addprefix clean-,$(TECHS))
 TECHS_VERYCLEAN = $(addprefix veryclean-,$(TECHS))
 
@@ -60,6 +65,9 @@
 install: $(TECHS_INSTALL)
 	@echo $(DONE_MESSAGE)
 
+uninstall: $(TECHS_UNINSTALL)
+	@echo $(DONE_MESSAGE)
+
 clean: $(TECHS_CLEAN)
 	@echo $(DONE_MESSAGE)
 
@@ -80,6 +88,9 @@
 install-sky130:	sky130
 	(cd sky130 && ${MAKE} install)
 
+uninstall-sky130: sky130
+	(cd sky130 && ${MAKE} uninstall)
+
 clean-sky130:
 	(cd sky130 && ${MAKE} clean)
 

VERSION

diff --git a/VERSION b/VERSION
index 8fa5878..08900bc 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.0.131
+1.0.132

sky130/Makefile.in

diff --git a/sky130/Makefile.in b/sky130/Makefile.in
index ad53099..11eb22c 100644
--- a/sky130/Makefile.in
+++ b/sky130/Makefile.in
@@ -720,6 +720,31 @@
 		-link_from ${DIST_LINK_TARGETS} 2>&1 | tee -a ${SKY130A}_install.log
 	echo "Ended SKY130 PDK migration on "`date` >> ${SKY130A}_install.log
 
+uninstall:
+	if test "x${DIST_PATH}" == "x" ; then \
+	    ${MAKE} uninstall-local ; \
+	else \
+	    ${MAKE} uninstall-dist; \
+	fi
+
+uninstall-local: uninstall-local-a
+
+uninstall-local-a:
+	echo "Uninstalling SKY130 PDK from ${LOCAL_PATH}"
+	if test "x${LOCAL_PATH}" != "x" ; then \
+		${RM} -rf ${LOCAL_PATH}/${SKY130A} ; \
+	fi
+	echo "Finished SKY130 PDK uninstall"
+
+uninstall-dist: uninstall-dist-a
+
+uninstall-dist-a:
+	echo "Uninstalling SKY130 PDK from ${DIST_PATH}"
+	if test "x${DIST_PATH}" != "x" ; then \
+		${RM} -rf ${DIST_PATH}/${SKY130A} ; \
+	fi
+	echo "Finished SKY130 PDK uninstall"
+
 clean: clean-a
 
 clean-a: