[Bug malloc/24757] New: memusagestat is linked against

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

https://sourceware.org/bugzilla/show_bug.cgi?id=24757

            Bug ID: 24757
           Summary: memusagestat is linked against
           Product: glibc
           Version: 2.30
            Status: NEW
          Severity: normal
          Priority: P2
         Component: malloc
          Assignee: unassigned at sourceware dot org
          Reporter: fweimer at redhat dot com
            Blocks: 20188
  Target Milestone: ---

Bug 18465 tried to switch memusagestat to linking against the built libc, not
the installed libc.  This finally resulted in commit
f9b645b4b0a10c43753296ce3fa40053fa44606a ("memusagestat: use local glibc when
linking [BZ #18465]").

Commit a8ff215e56050a907189e713fd449bcafe99ff6b ("Makeconfig: Move
-Wl,-rpath-link options before library references") tried to enable linking
against the local libpthread, not just the local libc, but it does not work due
to the subdirectory build order  libpthread.so.0 simply does not exist at that
point.

Related mailing list thread:
https://sourceware.org/ml/libc-alpha/2019-07/msg00031.html

This currently blocks resolving bug 20188 with the posted patch because with
it, the system libpthread.so.0 cannot be linked against the local libc.


Referenced Bugs:

https://sourceware.org/bugzilla/show_bug.cgi?id=20188
[Bug 20188] libpthread IFUNC resolver for vfork can lead to crash
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