[make] Remove \r from haxelib libpath output

Otherwise we end up with the carriage return still being there on windows

Makefile

@@ -115,17 +115,19 @@ HAXELIB_INTERP=HAXE_STD_PATH=$(HAXE_STD_PATH) $(CURDIR)/$(HAXE_OUTPUT) \
 	--hxb-lib $(HAXELIB_SRC_PATH)/haxelib_hxb.zip \
 	--run haxelib.client.Main
 
+HXCPP_LIBPATH = `$(HAXELIB_INTERP) libpath hxcpp | tr -d '\r'`
+
 haxelib_hxcpp: $(HAXELIB_SRC_PATH)/haxelib_hxb.zip
 	$(HAXELIB_INTERP) config > /dev/null || $(HAXELIB_INTERP) newrepo
 	$(HAXELIB_INTERP) path hxcpp > /dev/null || \
 		($(HAXELIB_INTERP) git hxcpp https://github.com/HaxeFoundation/hxcpp.git && \
-		hxcpp_path=`$(HAXELIB_INTERP) libpath hxcpp` && \
+		hxcpp_path=$(HXCPP_LIBPATH) && \
 		$(CURDIR)/$(HAXE_OUTPUT) --cwd $$hxcpp_path/tools/hxcpp compile.hxml)
 
 # haxelib should depends on haxe, but we don't want to do that...
 # since haxelib isn't available in PATH yet, we have to pass -D no-compilation and build manually
 haxelib: $(HAXELIB_SRC_PATH)/haxelib_hxb.zip haxelib_hxcpp
-	hxcpp_path=`$(HAXELIB_INTERP) libpath hxcpp` \
+	hxcpp_path=$(HXCPP_LIBPATH) \
 	HAXE_STD_PATH=$(HAXE_STD_PATH) $(CURDIR)/$(HAXE_OUTPUT) --cwd $(HAXELIB_SRC_PATH) \
 		client_cpp.hxml -D destination=../../../../$(HAXELIB_OUTPUT) -D no-compilation -D hxcpp.path=$$hxcpp_path
 	$(HAXELIB_INTERP) --cwd $(HAXELIB_SRC_PATH)/bin/cpp run hxcpp Build.xml haxe