diff --git a/gui/gui.pro b/gui/gui.pro
index 74b481242..ea60c6d7a 100644
--- a/gui/gui.pro
+++ b/gui/gui.pro
@@ -10,7 +10,7 @@ INCLUDEPATH += .
 RCC_DIR = temp
 MOC_DIR = temp
 OBJECTS_DIR = temp
-CONFIG += warn_on debug
+CONFIG += warn_on
 RESOURCES = gui.qrc
 FORMS = main.ui \
 	resultsview.ui \
diff --git a/readme.txt b/readme.txt
index 427f343e7..fe0e80f62 100644
--- a/readme.txt
+++ b/readme.txt
@@ -17,10 +17,15 @@ Compiling
 
   The Makefile works under Linux.
   To make it work under Windows with DJGPP, change "g++" to "gxx".
+
+  To build cppcheck with qmake, run the commands:
+  cd src
+  qmake -config release (or '-config debug' if doing developer build)
+  make
 
   To compile the GUI one needs Qt development libraries and issue the following commands:
   cd gui
-  qmake
+  qmake -config release (or '-config debug' if doing developer build)
   lrelease gui.pro
   make
 
diff --git a/src/src.pro b/src/src.pro
index 6c7ef4b48..7a77c3a82 100644
--- a/src/src.pro
+++ b/src/src.pro
@@ -7,7 +7,7 @@ TARGET = cppcheck
 DEPENDPATH += .
 INCLUDEPATH += .
 OBJECTS_DIR = temp
-CONFIG += warn_on debug
+CONFIG += warn_on
 QT -= gui core
 
 # Input