[Bug build/15337] New: Static builds fail with --disable-hidden-plt

["siddhesh at redhat dot com" <sourceware-bugzilla at sourceware dot org>]

http://sourceware.org/bugzilla/show_bug.cgi?id=15337

             Bug #: 15337
           Summary: Static builds fail with --disable-hidden-plt
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: build
        AssignedTo: siddhesh@redhat.com
        ReportedBy: siddhesh@redhat.com
                CC: carlos@redhat.com
    Classification: Unclassified


Static builds fail with the following warning:

/home/tools/glibc/glibc/nptl/../nptl/sysdeps/unix/sysv/linux/x86_64/cancellation.S:80:
undefined reference to `__GI___pthread_unwind'

When the source is configured with --disable-hidden-plt.  This is because the
conditional in cancellation.S only checks if the build is for SHARED, whereas
hidden_def is defined appropriately only for a SHARED build that will have
symbol versioning *and* hidden defs are enabled.  The last case is false here.

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