OSGeo4W Packages

Notes on OSGeo4W Packages.

Low Level Libraries

curl

• HTTP/FTP protocol library.
• Contains curl executable and library.
• Includes ssl libraries that can conflict with versions in \windows\system32
• Required for mapserver, and GDAL.
• Maintained by FrankW (derived from BuildKit)

expat

• XML Parser (library only)
• Required for GDAL / OGDI
• Maintained by FrankW (derived from BuildKit)

fcgi

• FastCGI library (for use by cgi's)
• Required for MapServer
• Maintained by FrankW (derived from BuildKit)

hdf5

• Read and write HDF5 format raster files
• Required for GDAL
• Maintained by FrankW (derived from BuildKit)

iconv

• character set transcoding library (internationalization)
• Required for MapServer, GRASS
• Maintained by FrankW (derived from BuildKit)

libjpeg

• JPEG read/write library
• Currently split into libjpeg, and libjpeg-devel packages though these will likely be merged.
• Required for MapServer, GDAL
• Maintained by FrankW (derived from BuildKit)

libtiff

• TIFF read/write library
• currently split into libtiff-bin, and libtiff-devel packages though these will likely be merged
• Currently derived from CVS head to capture BigTIFF support (libtiff 4.0 Alpha 2)
• Required for GDAL, MapServer
• Requires libjpeg, libz
• Maintained by FrankW

libgeotiff

• GeoTIFF header reading and writing library
• Includes library, a few commands and many support data files.
• Required by GDAL
• Requires libtiff
• Maintained by FrankW

libxml2

• XML read/write library
• Required by MapServer
• Maintained by FrankW (Derived from BuildKit)

msvcrt

• Various Microsoft Visual Studio C runtimes (VC6, VC7.1, VC8.0).
• No source available, but they are redistributable.
• Required most visual studio built packages.
• It might make sense to refactor this into specific 7.1, and 8.0 packages, and possibly remove MSVCRT.DLL which I think is available on all win32 systems already.
• Maintained by FrankW

mysql

• MySQL client access library
• Actual package is called libmysql
• Required by GDAL (MapServer?)
• Maintained by FrankW (Derived from BuildKit)

NetCDF

• NetCDF file format reading and writing library
• Package includes library and a few executables (ncdump, etc)
• Required by GDAL
• Maintained by FrankW (derived from BuildKit)

sqlite3

• SQLite3 database access library and sql engine.
• Includes library and commandline sqlite3 command.
• Required by GDAL, GRASS
• Maintained by FrankW (derived from BuildKit)

xerces-c

• XML Parser
• Required by GDAL
• Maintained by FrankW (derived from BuildKit)

zlib

• Deflate compression/decompression library
• Required by GDAL, libtiff
• Maintained by FrankW

libpq

• PostgreSQL client access library
• Required by GDAL, GRASS, MapServer
• Maintained by FrankW (derived from BuildKit)

proj

• Coordinate system transformation library
• Includes commandline tools (proj, cs2cs, geod)
• Currently lacks some datum shift files. Perhaps some supporting datum shift data should be a separate package?
• Required by GDAL, GRASS, MapServer
• Maintained by FrankW

GUI Libraries

Tcl/Tk

• Required by GRASS
• Normally done using ActiveState Tcl but this has license restrictions on redistributions. Not sure what our options are on this.

Qt4

• Required by QGIS and OSSIM
• Not yet packaged, no maintainer.
• Has been packaged by Tisham Dhar for QGIS win32 releases.