Pullup ticket #3674 - requested by pettai
graphics/png: security update

Revisions pulled up:
- graphics/png/Makefile                                        1.143
- graphics/png/distinfo                                        1.90

---
  Module Name: pkgsrc
  Committed By: wiz
  Date: Wed Feb  1 23:05:19 UTC 2012

  Modified Files:
  pkgsrc/graphics/png: Makefile distinfo

  Log Message:
  Update to 1.5.8:

  Version 1.5.8beta01 [January 15, 2011]
    Removed '#include config.h"' from contrib/libtests/pngvalid.c.  It's not
      needed and causes trouble for VPATH building.
    Moved AC_MSG_CHECKING([if libraries can be versioned]) later to the proper
      location in configure.ac (Gilles Espinasse).
    Fix bug in pngerror.c: some long warnings were being improperly truncated
      (bug introduced in libpng-1.5.3beta05).

  Version 1.5.8rc01 [January 21, 2012]
    No changes.

  Version 1.5.8rc02 [January 25, 2012]
    Fixed Min/GW uninstall to remove libpng.dll.a
    Conditionalize the install rules for MINGW and CYGWIN in CMakeLists.txt

(tron)