Bug 75919 - LLVM changed output of llvm-config, again
Summary: LLVM changed output of llvm-config, again
Status: RESOLVED NOTOURBUG
Alias: None
Product: Mesa
Classification: Unclassified
Component: Other (show other bugs)
Version: git
Hardware: All Linux (All)
: medium normal
Assignee: mesa-dev
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Reported: 2014-03-08 20:46 UTC by Krzysztof A. Sobiecki
Modified: 2014-03-18 13:25 UTC (History)
0 users

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Attachments
Is there even a point? (545 bytes, text/plain)
2014-03-08 20:46 UTC, Krzysztof A. Sobiecki 		Details
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Description Krzysztof A. Sobiecki 2014-03-08 20:46:56 UTC 
Created attachment 95368 [details]
Is there even a point?

llvm-config-3.5 --version now prints 3.5.0 instead of 3.5.
config is unable to find a shared llvm library if there is only one so. It searches for a libLLVM-3.5.0.so but only libLLVM-3.5.so exists.
Comment 1 Dave Witbrodt 2014-03-09 13:50:46 UTC 
(In reply to comment #0)
> Created attachment 95368 [details]
> Is there even a point?
> 
> llvm-config-3.5 --version now prints 3.5.0 instead of 3.5.
> config is unable to find a shared llvm library if there is only one so. It
> searches for a libLLVM-3.5.0.so but only libLLVM-3.5.so exists.

Thanks Krzysztof!  I've been trying to get shared LLVM 3.5 working again, and you found the fix.  (More details at comment 2 of bug 75929.)
Comment 2 Tom Stellard 2014-03-09 17:28:20 UTC 
(In reply to comment #0)
> Created attachment 95368 [details]
> Is there even a point?
> 
> llvm-config-3.5 --version now prints 3.5.0 instead of 3.5.
> config is unable to find a shared llvm library if there is only one so. It
> searches for a libLLVM-3.5.0.so but only libLLVM-3.5.so exists.

Are you using cmake or autoconf to build LLVM?  I use autoconf and on my system
llvm-config --version reports 3.5.0 and llvm install libLLVM-3.5.0.so and also a symlink from libLLVM-3.5.0.so to libLLV-3.5.so.
Comment 3 Krzysztof A. Sobiecki 2014-03-09 20:31:15 UTC 
(In reply to comment #2)
> (In reply to comment #0)
> > Created attachment 95368 [details]
> > Is there even a point?
> > 
> > llvm-config-3.5 --version now prints 3.5.0 instead of 3.5.
> > config is unable to find a shared llvm library if there is only one so. It
> > searches for a libLLVM-3.5.0.so but only libLLVM-3.5.so exists.
> 
> Are you using cmake or autoconf to build LLVM?  I use autoconf and on my
> system
> llvm-config --version reports 3.5.0 and llvm install libLLVM-3.5.0.so and
> also a symlink from libLLVM-3.5.0.so to libLLV-3.5.so.

I use packages from:
http://llvm.org/apt/unstable/pool/main/l/llvm-toolchain-snapshot/
After a short look into it, I think that there is a small bug in it.

One package populates link farm in usr/lib/llvm-3.5/lib/ and while it links
usr/lib/@DEB_HOST_MULTIARCH@/libLLVM-3.5.so.1       usr/lib/llvm-3.5/lib/libLLVM-3.5.so
it doesn't do the same for 3.5.0 variant.

Mystery solved, time to poke the maintainer.
Comment 4 Krzysztof A. Sobiecki 2014-03-09 21:24:05 UTC 
It should be fixed soon.
Comment 5 Dave Witbrodt 2014-03-18 13:25:11 UTC 
(In reply to comment #4)
LLVM 3.5 packages for Debian at llvm.org/apt have been fixed for about a week.

Looks like I need a patch from bug 70410 to build Mesa for RadeonSI, though.

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