No shared libpthread or libdl on x86_64?

[Rex Dieter]

Bill Nottingham wrote:
> Rex Dieter (rdieter at math.unl.edu) said: 
> 
>>Per
>>http://bugzilla.redhat.com/bugzilla/166344
>>it appears that there is no shared libpthread or libdl on x86_64.  The 
>>lack of these shared libraries is causing applications linking against 
>>libgc to fail with undefined symbols.
>>
>>Can anyone confirm this (I don't have access to any x86_64 box)?  Is 
>>this on purpose or a (glibc) bug?

> libpthread/libdl are shared on x86_64, much like they are on any other
> platform. I'd guess the build script/libtool are looking in the
> wrong place.

Except for the fact that gc (apparently) builds fine when built by hand. 
  It only fails to find the shared libs on the Fedora Extras 
buildsystem.  Any ideas or pointers?

-- REx