when removing nvidia-glx-177 /usr/lib/libGL.so is gone

From debian/nvidia-glx-177.postrm.in:
        # remove file created by init script
        rm /usr/lib/libGL.so 2> /dev/null || true

but:
# dpkg -S /usr/lib/libGL.so
libgl1-mesa-dev: /usr/lib/libGL.so

The removal of that file is obviously a mistake (I think it's a residue of a previous merge) since there's no reason to remove something that a package didn't install.

Thanks for reporting. I'll fix it.

I would also like to know why this error showed up only once:
dpkg-divert: error checking `/usr/lib/xorg/modules/extensions/libGLcore.so': No such file or directory

This bug was fixed in the package nvidia-graphics-drivers-96 - 96.43.10-0ubuntu1

---------------
nvidia-graphics-drivers-96 (96.43.10-0ubuntu1) jaunty; urgency=low

  * New upstream release. Supports the new X.org ABI (LP: #308410)
    * Fixed a text corruption problem on X.org server 1.5 and up.
    * Fixed a problem that caused nvidia-installer to remove Compiz's libglx.so.
    * Added "nvidia-uninstall" as a shortcut for "nvidia-installer --uninstall".
    * Added the ability to run distribution provided pre- and post- installation
      hooks to 'nvidia-installer'; please see the 'nvidia-installer' manual page
      for details.
    * Fixed an X server crash with multiple server generations when GLX is disabled.
    * Fixed a bug that caused corrupt window decorations in Compiz.
    * Worked around an X server bug that causes text to disappear when a composite
      manager is enabled on X.org 1.5 and newer.
    * Fixed a problem that prevented X from starting on 2.6.29-rc1 with an error
      like the following:
      X:6500 map pfn expected mapping type write-combining for d0000000-d0500000,
      got uncached-minus
  * debian/nvidia-glx-96.preinst:
    - Correct typo in the removal of diversions of /usr/lib/xorg/modules/extensions/libglx.so
  * debian/nvidia-glx-96.postrm.in
    - Do not remove libGL.so (LP: #309116)
  * debian/nvidia-glx-96-dev.preinst.in:
    - Add diversion on /usr/lib/libGL.so since (the postrm tries to remove it already)
  * debian/scriptremove.sh:
    - Remove from source

 -- Alberto Milone (tseliot) <email address hidden> Thu, 29 Jan 2009 14:46:33 +0100

This bug was fixed in the package nvidia-graphics-drivers-173 - 173.14.16-0ubuntu1

---------------
nvidia-graphics-drivers-173 (173.14.16-0ubuntu1) jaunty; urgency=low

  * New upstream release. Supports the new X.org ABI (LP: #308410)
    * Fixed a problem that caused nvidia-installer to remove Compiz's libglx.so.
    * Added "nvidia-uninstall" as a shortcut for "nvidia-installer --uninstall".
    * Fixed a bug that caused corrupt window decorations in Compiz (LP: #186382).
    * Fixed corruption in KDE 4 when OpenOffice is launched.
    * Fixed a problem that prevented X from starting on 2.6.29-rc1 with an error
      like the following:
      X:6500 map pfn expected mapping type write-combining for d0000000-d0500000,
      got uncached-minus
    * Added the ability to run distribution provided pre- and post- installation
      hooks to 'nvidia-installer'; please see the 'nvidia-installer' manual page for details.
  * Drop debian.binary/patches/NVIDIA_173.14.12_2.6.27.patch
  * debian/nvidia-glx-173.preinst:
    - Correct typo in the removal of diversions of /usr/lib/xorg/modules/extensions/libglx.so
  * debian/nvidia-glx-173.postrm.in
    - Do not remove libGL.so (LP: #309116)
  * debian/nvidia-glx-173-dev.preinst.in:
    - Add diversion on /usr/lib/libGL.so since (the postrm tries to remove it already)
  * debian/nvidia-glx-173-dev.postrm:
    - replace legacy-173xx with 173

 -- Alberto Milone (tseliot) <email address hidden> Thu, 29 Jan 2009 13:23:57 +0100

This bug was fixed in the package nvidia-graphics-drivers-180 - 180.27-0ubuntu1

---------------
nvidia-graphics-drivers-180 (180.27-0ubuntu1) jaunty; urgency=low

  * New upstream release. Supports the new X.org ABI (LP: #308410, #322416)
    * Added support for the following GPUs:
       o GeForce GTX 295
       o GeForce GTX 285
       o GeForce 9300 GE
       o Quadro NVS 420
    * Fixed a bug that caused VDPAU to display a green screen when using the
      overlay-based presentation queue with interlaced modes.
    * Fixed a bug that prevented VDPAU from working correctly after X server
      restarts on some GPUs.
    * Improved VDPAU's handling of mode switches; eliminated a crash in its
      mode switch recovery code and a hang in the blit-based presentation queue.
    * Fixed a bug that caused VDPAU to crash when using DisplayPort devices.
    * Fixed a potential hang in VDPAU when using the blit-based presentation
      queue on systems with multiple GPUs not in SLI mode.
    * Implemented missing error checking of layer data in VDPAU's VdpVideoMixerRender
      function.
    * Improved VDPAU's handling of setups with multiple GPUs, if a subset of the
      GPUs cannot be supported due to resource limitations.
    * Improved GPU video memory management coordination between the NVIDIA X driver
      and VDPAU.
    * Fix potential hang in VDPAU when the overlay is already in use.
    * Improved workstation OpenGL performance.
    * Fixed an X driver acceleration bug that resulted in Xid errors on GeForce 6 and
      7 series GPUs.
    * Updated the X driver to consider GPUs it does not recognize supported, allowing
      it to drive some GPUs it previously ignored.
    * Added the ability to run distribution provided pre- and post- installation hooks
      to 'nvidia-installer'; please see the 'nvidia-installer' manual page for details.
    * Updated the X driver's metamode parser to allow mode names with periods (i.e. '.'s).
    * Fixed a problem with hotkey switching on some recent mobile GPUs.
    * worked around a power management regression in and improved compatibility with
      recent Linux 2.6 kernels.
    * Added support for OpenGL 3.0 for GeForce 8 series and newer GPUs.
  * debian/nvidia-glx-180.preinst:
    - Correct typo in the removal of diversions of /usr/lib/xorg/modules/extensions/libglx.so
  * debian/nvidia-glx-180.postrm.in
    - Do not remove libGL.so (LP: #309116)
  * debian/nvidia-glx-180-dev.preinst.in:
    - Add diversion on /usr/lib/libGL.so since (the postrm tries to remove it already)
  * debian/scriptremove.sh:
    - Remove from source.

 -- Alberto Milone (tseliot) <email address hidden> Thu, 29 Jan 2009 12:36:09 +0100

In jaunty we've dropped -177 for -180