[CMake] CMakeDetermineVSServicePack.cmake support for vs2010

[aaron.meadows at thomsonreuters.com]

I can try and take a look at it.  I actually tried it in a hacky sort of
way and it worked great, but I wasn't using CMake's variable for the
compiler, etc...  I used execute_process() and didn't have any issues
with 'cl /?' waiting on input.  It shaved off several seconds with the
hacked-together version I tried.   I'll see what I can do.

 

--aaron

 

Aaron C. Meadows 

________________________________

From: philiplowman at gmail.com [mailto:philiplowman at gmail.com] On Behalf
Of Philip Lowman
Sent: Thursday, September 30, 2010 8:44 PM
To: Meadows, Aaron C.
Cc: cmake at cmake.org
Subject: Re: [CMake] CMakeDetermineVSServicePack.cmake support for
vs2010

 

On Thu, Sep 30, 2010 at 11:04 AM, <aaron.meadows at thomsonreuters.com>
wrote:

	Done.  Issue number 11279.
[http://public.kitware.com/Bug/view.php?id=11279]

	 

	I also noted that the script could be improved by calling the
compiler with the '/?' switch and parsing it's output instead of parsing
the output from try_compile'ing a simple c file it writes.  That would
make it quite a bit faster.

 

Aaron,

 

Thanks for the patch. I've pushed it to git next.

Regarding your idea to use the output of "cl /?" to determine the
version number, I think it is a good one. If you have time to rewrite
the module to do this instead and test it I would merge the changes for
a future version of CMake.

 

Some potential issues.

1. "cl /?" appears to pause waiting for input, this would have to be
mitigated somehow in a safe way or perhaps just "cl" could be executed
as that appears to include the output.

2. "cl" or "cl /?" output would have to be verified on VS8 to ensure it
outputs there as well (it appears to be there in VS9/Express)

3. You couldn't just run "cl", you would have to find out the CMake
variable for the compiler and run that.

 

My time is really limited. If you're interested, please create a new
ticket and submit a patch. It would save probably at least a second off
of an initial configure.

 

-- 
Philip Lowman



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