[Qt-interest] Qt project file with option to compile with Linux Intel C++ Compiler (icc) ?

[Ed Sutton]

Thank you very much Constantin !

On Nov 8, 2010, at 12:48 PM, Constantin Makshin wrote:

There are several "linux-icc*" mkspecs — use them ("QMAKESPEC" environment variable or "-spec" QMake option).


For others getting started with the Intel compiler who may also be relying on Qt Creator IDE too much, open a terminal and go to the command line:

#Set the Qt Version your project is frozen at:

export QTDIR=/opt/qtsdk-2010.01/qt/bin


# Create the Intel Makefile from the Qt project(s) file

$QTDIR/qmake *.pro -r -spec linux-icc

# Add path to the 30-day Intel Linux eval

export PATH=/opt/intel/Compiler/11.1/073/bin/ia32:$PATH


# Use provided iccvars script to set Intel Compiler Environment

/opt/intel/Compiler/11.1/073/bin/iccvars.sh ia32


make


I really appreciate all the new warnings and remarks. The Intel compiler may be worth it just for this reason. With gcc I had eliminated all warnings after setting a dozen or so additional warning flags as well as tuning the gcc warnings up to max.   Unfortunately the Intel compiler aborted so I never got to test my results.

compilation aborted for src/videostreamer.

make: *** [obj/videostreamer.o] Error 2



Hopefully I will get this figured out.  Then I hope to figure out how to make a new build setting in Qt Creator for the ICC. Thanks again for your help!


-Ed









On Monday 08 November 2010 21:30:48 Ed Sutton wrote:
Can anyone share a snippet of a Qt project file supporting the Intel C++ compiler ?

I am under 32-bit Red Hat Enterprise Linux 5.2.   The Linux Intel C++ Compiler  installs to:

/opt/intel/Compiler/11.1/073/bin/ia32/

I hope to learn if there are any performance benefits of the Intel versus gcc/g++ for my video decoding library.

Thanks in advance,

-Ed
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-Ed