Add instructions to compile kcachegrind, for next year

Author: Pietro Berkes

how_I_compiled_qcachegrind_on_osx.txt

@@ -0,0 +1,30 @@
+1) Install dependencies with MacPorts:
+   sudo port install qt4-mac graphviz
+
+Get source code for qcachegrind:
+
+2) Get kcachegrind-0.7.4.tar.gz from http://kcachegrind.sourceforge.net/html/Download.html
+
+3) Unzip it:
+   tar xfz ~/Downloads/kcachegrind-0.7.4.tar.gz
+
+We need "qmake" to find the right libraries
+
+4) Set PATH to find the right "qmake":
+   export PATH=/opt/local/libexec/qt4/bin:/opt/local/bin:/opt/local/sbin:$PATH
+
+5) Set library path:
+   export  DYLD_LIBRARY_PATH=/opt/local/libexec/qt4/Library/Frameworks/
+
+Compile:
+
+6) Compile: 
+   cd kcachegrind-0.7.4/
+   cd qcachegrind/
+   qmake -nocache
+   make
+   mv qcachegrind.app /Applications/
+
+Done!
+
+See also http://blogs.perl.org/users/rurban/2013/04/install-kachegrind-on-macosx-with-ports.html