OpenMP and Cygwin

OpenMP and Cygwin

[Ami Marowka]

Dear ALL,

I would like to work with OpenMP-C++ on top of Cygwin.
I installed the LATEST full version of Cygwin.
when I tried to compile:
gcc -fopenmp pi.cpp

I got the message:  "cc1plus: warning: command line option "-fopenmp" is valid 
for D but not for C++"

I found that the gcc version is 3.4.4 !? Is there any reason why the LATEST 
version of Cygwin uses so old gcc version?
It seems that gcc version 3.4.4 does not support OpenMP.

How can install/update my Cygwin with the newest gcc version.

Thanks in advance.
Ami Marowka






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Re: OpenMP and Cygwin

[Tim Prince]

Ami Marowka wrote:

> 
> I got the message:  "cc1plus: warning: command line option "-fopenmp" is valid 
> for D but not for C++"
> 
> I found that the gcc version is 3.4.4 !? Is there any reason why the LATEST 
> version of Cygwin uses so old gcc version?
> It seems that gcc version 3.4.4 does not support OpenMP.
> 
You'll find the topics you raised beaten nearly to death in the mailing 
list archives.  While it's not too difficult to build current g++ (without 
cygwin special patches) on Cygwin, I haven't found anything but 
performance loss for the resulting OpenMP.  Others have discussed the 
weaknesses of the attempting increased usage of exception handling.

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