libgoogle-perftools-dev: missing dependency on libunwind8-dev ?

[immerrr again]

Hi there

I'm using static version of libprofiler (provided by libgoogle-perftools-dev package) on amd64 platform on one of my projects and as far as I understand, libprofiler.a depends on some symbols that should be provided by libunwind:

# distinct undefined symbols in libprofiler
$ nm -C /usr/lib/libprofiler.a | grep ' U ' | awk '{print $2}' | sort -u > libprofiler_undefined_syms.txt

# distinct defined symbols in libunwind
$ nm -C /usr/lib/libunwind.a | grep '^0' | awk '{print $3}' | sort -u > libunwind_defined_syms.txt

# intersect those lists:
$ comm -12 libprofiler_undefined_syms.txt libunwind_defined_syms.txt
_ULx86_64_get_reg
_ULx86_64_init_local
_ULx86_64_step
_Unwind_Resume
_Ux86_64_getcontext

So, I'd expect libgoogle-perftools-dev to depend on libunwind8-dev, but there's no such dependency:

$ apt-cache depends libgoogle-perftools-dev=2.0-3ubuntu1
libgoogle-perftools-dev
  Depends: libgoogle-perftools4
  Depends: libtcmalloc-minimal4
  Conflicts: libgoogle-perftools-dev:i386

Is this intentional or is this really a missing dependency?

[Robie Basak (racb)]

Thank you for reporting this bug and helping to make Ubuntu better.

Setting Importance to Medium as a workaround is available (presumably one can install libunwind8-dev manually if required).

[Robie Basak (racb)]

PS. it seems likely that this issue affects Debian as well. If you can reproduce this on Debian, could you please file a bug there, please?

[immerrr again (immerrr-k)]

I will, at some point. I'm afraid it's going to take a while, because I don't have a chroot/VM with Debian around and reporting debian bugs via email (and not using reportbug) seems excruciating.

[James Page (james-page)]

I'll push this back to Debian once I've fixed up in Ubuntu.

[Launchpad Janitor (janitor)]

This bug was fixed in the package google-perftools - 2.0-4ubuntu2

---------------
google-perftools (2.0-4ubuntu2) saucy; urgency=low

  * d/control: Add missing dependency on libunwind8-dev for amd64 architecture
    to libgoogle-perftools-dev (LP: #1169932).
 -- James Page <email address hidden> Sun, 05 May 2013 07:17:03 -0700