diff -Nru orig/libsoc/src/Makevars.ucrt patched/libsoc/src/Makevars.ucrt
--- orig/libsoc/src/Makevars.ucrt	1970-01-01 01:00:00.000000000 +0100
+++ patched/libsoc/src/Makevars.ucrt	2021-02-17 19:45:41.272764100 +0100
@@ -0,0 +1,9 @@
+PKG_CFLAGS=-Iinclude -I$(R_TOOLS_SOFT)/include/libxml2  -DLIBXML_STATIC
+PKG_LIBS=-lxml2 -lz -liconv -llzma -lws2_32
+
+all: 
+
+clean:
+	rm -f $(OBJECTS) xml2.dll
+
+.PHONY: all clean