Also AWK needed here

Change-Id: Ifc47c1422f035cb23a9a148510230c8dd2cf42cd

libvisio/ExternalProject_libvisio.mk

@@ -41,6 +41,7 @@ $(call gb_ExternalProject_get_state_target,libvisio,build) :
 			CXXFLAGS="$(if $(filter NO,$(SYSTEM_BOOST)),-I$(call gb_UnpackedTarball_get_dir,boost),$(BOOST_CPPFLAGS)) \
 			$(if $(filter NO,$(SYSTEM_LIBXML)),-I$(call gb_UnpackedTarball_get_dir,xml2)/include)" \
 			$(if $(filter YES,$(CROSS_COMPILING)),--build=$(BUILD_PLATFORM) --host=$(HOST_PLATFORM)) \
+			$(if $(filter MSC,$(COM)),AR=lib.exe AWK=awk.exe SED=sed.exe) \
 		&& (cd $(EXTERNAL_WORKDIR)/src/lib && $(MAKE)) \
 	)