diff -Nru orig/svglite/src/Makevars.ucrt patched/svglite/src/Makevars.ucrt
--- orig/svglite/src/Makevars.ucrt	1969-12-31 16:00:00.000000000 -0800
+++ patched/svglite/src/Makevars.ucrt	2021-02-22 00:35:05.596671000 -0800
@@ -0,0 +1,10 @@
+
+PKG_CPPFLAGS = \
+	-DSTRICT_R_HEADERS
+
+PKG_LIBS = -lpng -lz
+
+all: clean 
+
+clean:
+	rm -f $(OBJECTS)