--- automation/Makefile.orig
+++ automation/Makefile
@@ -13,8 +13,8 @@
 	$(MKDIR_INSTALL)
 
 aegisub-lua_OBJ := $(d)tests/aegisub.o $(TOP)lib/libaegisub.a $(TOP)lib/libluabins.a $(LIBS_LUA)
-aegisub-lua_CPPFLAGS := $(CPPFLAGS_BOOST) $(CFLAGS_LUA) -I$(TOP)libaegisub/include -I$(TOP)src $(CXXFLAGS_WX)
-aegisub-lua_LIBS := $(LIBS_WX) $(LIBS_BOOST) $(LIBS_ICU)
+aegisub-lua_CPPFLAGS := $(CPPFLAGS_BOOST) $(CFLAGS_LUA) -I$(TOP)libaegisub/include -I$(TOP)src $(CXXFLAGS_WX) $(CFLAGS_ICONV) $(CFLAGS_PTHREAD)
+aegisub-lua_LIBS := $(LIBS_WX) $(LIBS_BOOST) $(LIBS_ICU) $(LIBS_ICONV) $(LIBS_PTHREAD)
 
 PROGRAM += $(d)aegisub-lua