makefile.unix: WXINCLUDEPATHS now only used for building GUI object files.

Moved it out of CXXFLAGS and into the command-line for the GUI objects.
    It will no longer be invoked for non-GUI and crypto object files.

makefile.unix

@@ -25,7 +25,7 @@ LIBS= \
 
 DEFS=-DNOPCH -DFOURWAYSSE2 -DUSE_SSL
 DEBUGFLAGS=-g -D__WXDEBUG__
-CXXFLAGS=-O2 -Wno-invalid-offsetof -Wformat $(DEBUGFLAGS) $(DEFS) $(WXINCLUDEPATHS)
+CXXFLAGS=-O2 -Wno-invalid-offsetof -Wformat $(DEBUGFLAGS) $(DEFS)
 HEADERS=headers.h strlcpy.h serialize.h uint256.h util.h key.h bignum.h base58.h \
     script.h db.h net.h irc.h main.h rpc.h uibase.h ui.h noui.h init.h
 
@@ -46,7 +46,7 @@ all: bitcoin
 
 
 obj/%.o: %.cpp $(HEADERS)
-	$(CXX) -c $(CXXFLAGS) -DGUI -o $@ $<
+	$(CXX) -c $(CXXFLAGS) $(WXINCLUDEPATHS) -DGUI -o $@ $<
 
 cryptopp/obj/%.o: cryptopp/%.cpp
 	$(CXX) -c $(CXXFLAGS) -O3 -o $@ $<