--- a/igc.pro	Fri Jan 27 17:22:55 2012 +0100
+++ b/igc.pro	Fri Jan 27 22:36:11 2012 +0100
@@ -4,6 +4,7 @@
 
 CONFIG += release precompile_header
 QT += webkit network
+QMAKE_EXTRA_TARGETS += doxy doc
 
 TEMPLATE = app
 TARGET = 
@@ -24,3 +25,11 @@
 	   igc.h plot.h
 SOURCES += main.cc mainwindow.cc \
 	   igc.cc plot.cc
+
+# doxygen documentation
+doxy.target = .build/html/index.html
+doxy.depends = Doxyfile $$SOURCES $$HEADERS
+doxy.commands = doxygen Doxyfile \
+		&& touch $$doxy.target
+
+doc.depends = $$doxy.target