Re: [Openexr-devel] IlmImf/ImfSystemSpecific.cpp and cpuid

[Ed Hanway]

I've put the cpuid issue into github to track: 
https://github.com/openexr/openexr/issues/128

It'll take a little tweak to your patch because there are old versions of gcc 
still in play that don't
provide <cpuid.h>.  

-----Original Message-----
From: address@hidden [mailto:address@hidden On Behalf Of Richard PALO
Sent: Wednesday, August 13, 2014 10:06 AM
To: address@hidden
Subject: [Openexr-devel] IlmImf/ImfSystemSpecific.cpp and cpuid

Hi, came across build issues and the above file..
In particular, it fails when building PIC as the asm code doesn't deal with all 
the possible cases...

Fortunately the code was already strobed with __GNUC__, so I updated to use the 
gcc builtin __get_cpuid which does all the work.

I took advantage of the occasion to rectify the ints to be unsigned as we're 
dealing with registers here.

Patch proposal is attached.

Wanting to test this, I came across an issue here as well for SunOS, so I add 
as well a second patch to correctly include unistd.h for this platform in 
IlmImfTest/main.cpp.

Unfortunately the test fails anyway as there is a file not found named 
'comp_dwaa_v1.exr'.  Can't seem to find it anywhere.  Any hints?

cheers