[Qt-interest] How can I remove CFLAGS -O2 using project file?

[phil prentice]

Hi

  I have built a Qt application which runs happily (with the -O2 set for the 
CFLAGS) on one machine, but fails on a different machine.  It works fine when 
-O2 is removed. 

  I discovered that if I added a dummy function call between a couple of 
statements that it fixed the problem.  I believe that it is a compiler 
problem and simply would like to remove the -O2 option from the Makefile 
(just for this project).

  I've tried doing

QMAKE_CFLAGS_RELEASE =  -Wall -W -D_REENTRANT  $(DEFINES)

but it simply adds to what was there before.  I just want to remove the -O2.

Whats the easiest way to do this??  I would like to be able to just do it for 
this project?  Leaving all other projects as is.

Thanks