added qt5 console application

Author: qknight

README.md

@@ -17,7 +17,15 @@ finally run `./main` to see the ultimate answer:
     42
 
 ## go programs
-## qt programs
+## qt program
+
+this example features a qt5 console application `console`:
+
+run `cd qt-program` and `nix-shell` to get a qt5 including environment. afterwards
+run `qmake` and `make` to generate the console binary. finally run `./console` to obtain:
+
+    hello beautiful world, from #cccamp2015! 
+
 ## perl
 ## python
 enter environment by typing `nix-shell` in ./python-program

qt-program/console.pro

@@ -0,0 +1,10 @@
+QT       += core
+QT       -= gui
+
+TARGET = console
+CONFIG   += console
+CONFIG   -= app_bundle
+
+TEMPLATE = app
+
+SOURCES += main.cpp

qt-program/default.nix

@@ -0,0 +1,9 @@
+with import <nixpkgs> { };
+
+stdenv.mkDerivation rec {
+  name = "myprogram-${version}";
+  version = "0.0.1";
+
+  buildInputs = [ qt53 ];
+}
+

qt-program/main.cpp

@@ -0,0 +1,6 @@
+#include <QDebug>
+
+int main(int argc, char *argv[]) {
+    qDebug() << "hello beautiful world, from #cccamp2015!" << endl << endl;
+    return 0;
+}