Hi

Thanks for the replies.

After my post I decided to get the Qt 4.8.4 sources and compile Qt myself. After compiling it, I set up as a new kit in Qt Creator and pointed qmake to the qmake I built from the 4.8.4 sources. When I rebuild everything against this newly compiled 4.8.4 version, the problem is gone.

The culprit was indeed the -g flag which inserted the debug symbols. Not sure why the 4.8.1 qmake created a Makefile with all the other garbage and the 4.8.4 does not. Here is the Makefile from 4.8.4 which gives me nice small release libs again.

Qt Code: 
  1. CFLAGS        = -m64 -pipe -O2 -Wall -W -D_REENTRANT -fPIC $(DEFINES)
  2. CXXFLAGS      = -m64 -pipe -O2 -Wall -W -D_REENTRANT -fPIC $(DEFINES)
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Just to be complete in case anyone else runs into this problem:
I also noticed that after I deployed the application with the big release libraries it does not run properly. Nothing is painted on any widgets and lots of these messages appears:

Qt Code: 
  1. X Error: BadDrawable (invalid Pixmap or Window parameter) 9
  2.   Major opcode: 62 (X_CopyArea)
  3.   Resource id:  0x2a0007a
  4. X Error: BadDrawable (invalid Pixmap or Window parameter) 9
  5.   Major opcode: 62 (X_CopyArea)
  6.   Resource id:  0x2a0007a
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The reason for these messages is a bad Qt 4.8.1 linux distro according to http://qt-project.org/forums/viewthread/16819. Thus, I guess I have the same bad 4.8.1 linux distro over here which also has issues in qmake.

Thanks for the help again.
Jaco