Update MapServer to 5.6.8.
PR 46504 By Wen Heping.

Version 5.6.8 (2012-02-08):
---------------------------

- Fix security issue with quote escape in WFS GetFeature Filter (#4087)

- Fix segfault on join with postgresql tables (#4074)

- Define Z_BEST_COMPRESSION for newer libpng versions (#4033)

- Fixes to support latest PROJ versions (#4008)

Version 5.6.7 (2011-07-12):
---------------------------

IMPORTANT SECURITY FIXES:

-  Fixes to prevent SQL injections through OGC filter encoding (in WMS, WFS
   and SOS), as well as a potential SQL injection in WMS time support.
   Your system may be vulnerable if it has MapServer with OGC protocols
   enabled, with layers connecting to an SQL RDBMS backend, either
   natively or via OGR (#3903)

-  Fixed potentially exploitable buffer overflows in OGC Filter Encoding
   support (#3903)

Other Fixes:

- Fixed PHP/MapScript ms_iogetstdoutbufferbytes() always returning 0 bytes
  written (#3041)

- OGC Filter: fix segfault when a ows_varname_type or wfs_varname_type is
  defined but not a gml_varname_type (#3902)

- Fixed mssql2008 to return correct geometries with chart layer type (#3894)

- Fix segfault with png-inimage exceptions and quantize_force=on (#2903)

- Fix segfault on malformed <PropertyIsLike> filters (#3888)

- Fixed potential crash with AVERAGE resampling and crazy reprojection (#3886)

- Fixed segmentation fault on invalid symbol (#3849)

- add support for gml:Box for spatial filters (#3789)

- Fixed false computation of symbol size when used as a brush on line (#3760)

- Fixed SQL Spatial to be able to use UniqueIdentifier field as unique key (#3722)

- Fixed possible seg. fault when using "OGR:Label*" special attributes (#3667)

- Fixed bug with newlines around multipart boundaries in wcs multipart (#3672)

Version 5.6.6 (2011-01-17):
---------------------------

- SLD: Fix point symbolizer issue when color is not set (#3658)

- Fix WMS EXCEPTIONS parameter issue with fastcgi (#3525)

- Fixed missing time in msDrawMap logging (#3651)

- Fixed Internal error with Oracle Spatial multi point geometries (#3627)

- Fixed double free in shp2img.c (#3497)

- Fixed free(): invalid next size in mapfile.c (#3604)

- Fix for the memory corruption when mapping the string data type in the
  Java bindings (3491)

- Correct wms 1.3.0 latlong bbox error (#2578)

- Fix ProperyIsLike not used efficiently with Oracle (#3557)

- Fixed msOGRGetSymbolId according to the changes in gdal 1.8 (#3556)

- Fixed crash when drawing a map using UNIQUE fid in the layer data (#3271)

- Fixed Oracle Spatial Data gets corrupt (#3541)

- Fixed issue with multiple styles and binding (#3538)

- Fixed multiple include tags not supported in xml mapfiles (#3530)

- Ensure the class is not marked BeforeFieldInit causing memory corruption
  with C#/CLR4 (#3438)

- Fixed MSSQL2008 driver returning invalid extent (#3498)

- Fix computation of shape bounds when the first line contains no points
  (#3119)(fixes #3383)

- Fixed error message tiles on zero-sized map cause memory allocation errors
  in maperror.c. (#3524)
Updated geography/mapserver to 5.6.8

Remove variable GNU_PROGRAM_PREFIX as discussed in pkgsrc-users@, always
use prefix 'g' instead, and add symlinks
with original names in gnu/bin and gnu/man.

++pkgrevision
Use ${PREFIX}/gnu/bin/ld instead of ${PREFIX}/bin/gnu-ld
adam reports that OS X 10.6 patch is not needed any longer, remove it.
Updated devel/binutils to 2.17nb2
Updated devel/patch to 2.5.9nb2
Updated archivers/gtar-base to 1.26nb2
Updated textproc/gsed to 4.2.1nb4
Updated textproc/grep to 2.5.3nb3
Updated sysutils/findutils to 4.2.33nb3
Updated time/gnutime to 1.7nb1
Updated editors/ed to 1.1nb2
Updated devel/m4 to 1.4.16nb3
Updated devel/gmake to 3.82nb5
Updated devel/gindent to 2.2.9nb3
Updated devel/diffutils to 3.2nb2
Updated archivers/gsharutils to 4.11.1nb2
Updated archivers/gcpio to 2.6nb10
Updated misc/gnuls to 8.13nb2