[Bug libc/804] New: malloc/tst-mtrace linked w/ wrong dynamic-linker directive

["balducci at units dot it" <sourceware-bugzilla at sources dot redhat dot com>]

Apologies if I'm wrong.

Building glibc with --prefix=/usr/local/glibc for the first time (so
/usr/local/glibc does not yet exist).

Upon `make check', the following error message is issued:
   ...
   /bin/sh -e tst-mtrace.sh
/home/balducci/tmp/install-us-d/glibc-d/glibc-2.3.4/build-d/
   env:
/home/balducci/tmp/install-us-d/glibc-d/glibc-2.3.4/build-d/malloc/tst-mtrace:
No such file or directory
   ...

Browsing the output, it turns out that tst-mtrace is linked with
`-Wl,-dynamic-linker=/usr/local/glibc/lib/ld-linux.so.2', which is the
*final* destination of the dynamic-linker. However, as I'm installing
for the first time with --prefix=/usr/local/glibc,
/usr/local/glibc/lib/ld-linux.so.2 does not yet exist at `make check'
time. The consequence is that tst-mtrace is linked without any complaint
(!), but trying to run it (it is run by the malloc/mtrace perl script)
generates the above listed error message.

The same seems to apply to all other tst-* testers, but for those I
haven't noticed any error message (probably because their output is
redirected into files)

===============
>How-To-Repeat:
===============

     configure ... --prefix=/not/yet/existing/dir ...
     make
     make check

=====
>Fix:
=====

Link tst-mtrace with the path to the dynamic linker in the build tree:
                                                    -----------------

  `-Wl,-dynamic-linker=/build/directory/tree/glibc-2.3.4/build-d/elf/ld-linux.so.2'

My workaround (which is definitely *not* a fix): stuff a specific make
rule for tst-mtrace (with the correct dynamic-linker directive) into
Rules.

I guess that a genuine fix would require diving into the Makefiles,
which I haven't done.

Ciao
Gabriele

-- 
           Summary: malloc/tst-mtrace linked w/ wrong dynamic-linker
                    directive
           Product: glibc
           Version: 2.3.4
            Status: NEW
          Severity: minor
          Priority: P3
         Component: libc
        AssignedTo: gotom at debian dot or dot jp
        ReportedBy: balducci at units dot it
                CC: glibc-bugs at sources dot redhat dot com
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu


http://sources.redhat.com/bugzilla/show_bug.cgi?id=804

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