No shared libpthread or libdl on x86_64?

[John Ellson]

John Ellson wrote:

> Rex Dieter wrote:
>
>> 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?
>>
>> -- Rex
>>
> Seems OK on my x86_64 box, so long as you have glibc-devel installed:
>
> $ ls -l  /usr/lib64/libdl* /usr/lib64/libpthread*
> -rw-r--r--  1 root root  11882 Sep 12 12:58 /usr/lib64/libdl.a
> lrwxrwxrwx  1 root root     22 Sep 13 10:48 /usr/lib64/libdl.so -> 
> ../../lib64/libdl.so.2
> -rw-r--r--  1 root root 289334 Sep 12 12:58 /usr/lib64/libpthread.a
> -rw-r--r--  1 root root    222 Sep 12 12:40 /usr/lib64/libpthread.so
> -rw-r--r--  1 root root   1596 Sep 12 12:58 
> /usr/lib64/libpthread_nonshared.a
>
> $ rpm -qf /lib64/libdl.so.2
> glibc-2.3.90-12
> $ rpm -qf /usr/lib64/libdl.so
> glibc-devel-2.3.90-12
> $ rpm -qf /usr/lib64/libpthread.so
> glibc-devel-2.3.90-12
>
> Jonh
>
>
gc needs a BuildRequires on glibc-devel.

If I install gc-6.6-2 from extras I get:

$ ldd libgc.so
        libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00002aaaaac0f000)
        libc.so.6 => /lib64/libc.so.6 (0x00002aaaaad1c000)
        /lib64/ld-linux-x86-64.so.2 (0x0000555555554000)

but if I "rpmbuild --rebuild" it from the src.rpm I get:

$ ldd libgc.so
        libpthread.so.0 => /lib64/libpthread.so.0 (0x00002aaaaac0f000)
        libdl.so.2 => /lib64/libdl.so.2 (0x00002aaaaad24000)
        libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00002aaaaae28000)
        libc.so.6 => /lib64/libc.so.6 (0x00002aaaaaf36000)
        /lib64/ld-linux-x86-64.so.2 (0x0000555555554000)


John