Log message:
Adjust comments (only) about shlib versioning.

Upstream says using the C++ API is broken; document the policy and the
list of (broken per geos rules) packages that need a revbump every
time, currently gdal-lib.

Log message:
Add comments (only) about shlib versioning.

Note that the shlib-name-changing-on-minor-releases issue has been
raised upstream.

Log message:
shlib name changed -> bump ABI requirement

Log message:
Changes in 3.3.4
2012-05-31

- Bug fixes / improvements
    - Do not abort on NaN overlay input (#530)
    - Reduce CommonBitsRemover harmful effects during overlay op (#527)
    - Better cross-compiler support (#534)
    - Enable overlay ops short-circuits (#542)
    - Envelope-based short-circuit for symDifference (#543)
    - Fix support for PHP 5.4 (#513)
    - Fix TopologyPreservingSimplifier invalid output on closed line (#508)
    - Reduce calls to ptNotInList, greatly speeding up Polygonizer (#545)

Changes in 3.3.3
2012-04-01

- Bug fixes / improvements
    - Fix simplification of collections with empty items (#519)
    - Fix MSVC compilation of ambiguous log() call (#506)
    - Fix CMake issues with std:: namespace detection (#493)

Log message:
Fix broken patch file.

Log message:
Fix problem with ISNAN on SunOS.

Log message:
Update to 3.3.2 (bugfixes from 3.3.0, basically).

Changes in 3.3.2
2012-01-05

- Bug fixes / improvements
    - Fix CMAKE_CXX_FLAGS overriding -std=gnu++0x (#489)
    - Missing versions update in CMake configuration (#490)
    - Fix noding of self-intersecting lines through UnaryUnion (#482)
    - Fix handling of collapsed edges skipping in BufferOp (#494)
    - Print up to 18 digits of precision for TopologyException points
    - Fix noding with reduced precision in Buffer operation (#473)
    - Fix HotPixel original point invalidation (#498)
    - Fix CascadedPolygonUnion to discard non-polygonal components (#499)
    - Improve buffer robustness by reverting to non-snaprounding noder (#495)
    - Fix C++11 build by avoiding std::pair<auto_ptr> (#491)
    - Add --clibs to geos-config and GEOS_C_LIBS to geos.m4 (#497)
    - Apply shoelace formula for area calculation (#485)
    - Fix default initialization issue for clang (#500)
    - Improve overlay robustness by fixing areal validity on snapping (#488)

Changes in 3.3.1
2011-09-27

- Bug fixes / improvements
  - Fix memory leak on invalid geometry in InteriorPointArea (#475)
  - ValidOp abort in presence of 2 touching holes forming an island (#449)
  - Enable prepared intersects operation for points
  - Fortify suspicious code found by static analisys tools
  - Fix for SOLARIS build (#461)
  - Fix EMPTY result from GEOSOffsetCurve with distance 0 (#454)
  - Fix Geometry::clone to copy SRID (#464)
  - Fix for clang builds (#463)
  - Fix out-of-place builds for python binding (#332) and regress testing
  - Fix OS X framework cmake build (#385)

Log message:
geometry/geos: Fix DragonFly

DragonFly need the same platform.h.in modification that NetBSD requires
for ISNAN support.

Log message:
Handle isnan from cmath on NetBSD like on Darwin.

XXX The comment in the code is wrong and using std::isnan is actually
XXX the portable approach. DragonFly and other GCC users likely need the
XXX same change

Log message:
Changes 3.3.0:
- New things:
  - CAPI: GEOSBufferWithParams (allows single sided buffers)
  - CAPI: GEOSOffsetCurve deprecates GEOSSingleSidedBuffer
  - CAPI: GEOSUnaryUnion deprecates GEOSCascadedUnion
  - CAPI: GEOSisValidDetail: tell state, reason & location apart. allows
          passing flags.
  - CAPI: GEOSContext_setNoticeHandler_r, GEOSContext_setErrorHandler_r
  - CAPI: GEOSGeom_createEmptyPoint, GEOSGeom_createEmptyLineString
          GEOSGeom_createEmptyPolygon, GEOSGeom_createEmptyCollection
  - CAPI: GEOSGeom_extractUniquePoints
  - CAPI: GEOSGetGeometryN support for single geometries
  - CAPI: GEOSPolygonize_full to return all informations computed by
          the polygonizer
  - CAPI: GEOSOrientationIndex
  - CAPI: GEOSSharedPaths to find shared paths and their orientation
  - CAPI: GEOSSnap
  - CAPI: GEOSRelatePatternMatch
  - CAPI: GEOSCovers, GEOSCoveredBy
  - CAPI: GEOSRelateBoundaryNodeRule
  -  PHP: new PHP5 bindings based on CAPI
- Semantic C++ API changes:
  - Geometry inheritance chain changed to introduce Puntal, Lineal
    and Polygonal classes (virtual inheritance introduced)
  - Polygonizer::getInvalidRingLines retains ownership of vector elements
  - Geometry::isWithinDistance method is now const
  - Polygonizer::getCutEdges returns by const ref
  - Polygonizer::getDangles returns by const ref
  - Empty LinearRings are closed by definition
- Bug fixes / improvements
  - Fixed Geometry.distance() and DistanceOp to return 0.0 for empty inputs
  - Invalid compound geometries reported as valid
  - Return up to 15 digits of precision from GEOSisValidReason_t
  - CAPI: do not leak contexts when using the non-reentrant interface
  - Fix duplicated dangles returned by Polygonizer
  - Fix SnapIfNeededOverlayOp to throw the originating exception
  - Fixed LineMerger to skip lines with only a single unique coordinate
  - Fix NodedSegmentString to handle zero-length line segments correctly
    (via safeOctant)
  - Fixed buffer OffsetCurveSetBuilder to handle "flat" rings correctly
  - Added illegal state check in LineSegment::pointAlongOffset()
  - Improved performance of RectangleIntersects by always using
    segment-scanning and refining SegmentIntersectionTester
  - Reduce memory use in PreparedGeometry predicates
  - Fix infinite loop in RobustDeterminant with nan/inf input