-CXXFLAGS = -I/Library/Frameworks/QtGui.framework/Versions/Current/Headers -I/Library/Frameworks/QtCore.framework/Versions/Current/Headers
-QTLDLIBS = -framework QtGui -framework QtCore
-MOC = moc
+CXXFLAGS = $(shell pkg-config --cflags QtCore QtGui 2>/dev/null) -Wall -O4
+QTLDLIBS = $(shell pkg-config --libs QtCore QtGui 2>/dev/null)
+MOC = $(shell pkg-config --variable=moc_location QtCore)