[libitm] Link with -litm and -pthread

[Andreas Krebbel]

On 02/14/2012 11:58 PM, Eric Botcazou wrote:
>> I see several new fails on s390x with that patch (r184174):
> 
> People should realize that -fgnu-tm doesn't really work if libitm hasn't been 
> ported to the architecture, for example s390/s390x.  My understanding is that 
> Hans-Peter's patch should have taken care of this now.
> 
Sure I'm very well aware that -fgnu-tm cannot work on s390 since we do not have libitm
support yet. So I think the option should simply *not* be used by the testsuite.

However, it still fails with r184339.

The dg-require check does not seem to work properly. Since it only affects the lto tm
testcases perhaps the lib/lto.exp magic dealing with the _0 and _1 files doesn't handle it
properly?!

Bye,

-Andreas-