I am from a linux background - I use fedora core . There I install the software using yum. I got to know that the similar is called ports in the mac world. I have a macbook pro - MD101HNA. I have installed qt-5.3 version, basically I downloaded the source code and have build it. There is no readymade versions available in the macport. Now, when I try to install umbrello or geany - I get the errors - looking for qt4 dependencies. How can I resolve this. I did the following - sudo port install umbrello. sudo port install geany. Also, I see that it keeps downloading a lot of files. The umbrello is dependent on the kdelibs. Thus, it installed a lot of files. Is it safe to use macports? Is it authorized from apple? Although, I have already installed it now.