clang-3.4 hangs on package alliance 5.0-20120515-6

[Nicolas Sévelin-Radiguet]

Hello everyone,

While fixing some FTBFS with clang instead of gcc, I came across a bug 
in clang (at least I think so).

The package I am working on is alliance 5.0-20120515-6 [0] which is 
failing to build due to -Wreturn-type errors [1]. After applying the 
following patch [2] to get rid of these, clang hangs (eats CPU) and 
nothing happens even after a few minutes [3].
The files needed to reproduce this behavior are here [4]:
- expy-0fa6b4.sh is the command line
- expy-0fa6b4.c is the source

The source, with the patch applied, builds fine with gcc [5].
Please note that I am not familiar at all with this particular package.

Tell me if you need more info.

Regards,
Nicolas


[0] https://packages.debian.org/sid/alliance
[1] 
http://clang.debian.net/logs/2014-01-14/alliance_5.0-20120515-6_unstable_clang.log
[2] 
https://github.com/nonas/debian-clang/blob/master/buildlogs/alliance/alliance-5.0-20120515/debian/patches/12-clang-FTBFS-Wreturn-type.patch
[3] 
https://github.com/nonas/debian-clang/blob/master/buildlogs/alliance/alliance_5.0-20120515-6_amd64-20140408-2104_patch%2Bclang.build 
[2 MB]
[4] https://github.com/nonas/debian-clang/tree/master/buildlogs/alliance
[5] 
https://github.com/nonas/debian-clang/blob/master/buildlogs/alliance/alliance_5.0-20120515-6_amd64-20140408-2053_patch%2Bgcc.build 
[3 MB]