Merge branch 'master' of https://foss-eda-tools.googlesource.com/skywater-pdk/libs/sky130_osu_sc

Makefile

diff --git a/Makefile b/Makefile
index fa4710a..5dc8c0d 100644
--- a/Makefile
+++ b/Makefile
@@ -21,7 +21,10 @@
 	@cp flow/pnr/final.gds outputs/
 	@cp flow/pnr/final.gds lib/gds/
 
-clean: clean_char clean_design
+clean: clean_lib clean_char clean_design
+
+clean_lib:
+	-@cd lib && make clean
 
 clean_char:
 	-@cd char && make clean

char/Makefile

diff --git a/char/Makefile b/char/Makefile
index 69dc801..c43a83e 100644
--- a/char/Makefile
+++ b/char/Makefile
@@ -3,6 +3,8 @@
 
 .PHONY: do clean purge
 
+all: do
+
 extract:
 	@cd ../lib && make clean magic pex VARIANT=${VARIANT}