REQUIREMENTS to compile GRASS GIS 6

A workstation running some flavor of UNIX like Solaris, IRIX, Linux, BSD, Mac OS X or cygwin (on Win32). Ideally, you should have at least 500 Mb for data and 32 Mb RAM. The source code package needs around 50 MB uncompressed. The resulting binaries may need between 20 MB and 180 MB depending on your platform. During a full compilation you may need temporarily up to 550MB including the source code.

To disable features please read the INSTALL file.

General requirements:

(most tools are standard tools on Linux, for other platforms you may have to install some of them.)

C-compiler (cc, gcc, egcs, ...)
gcc: http://www.gnu.org/software/gcc/gcc.html
GNU make is recommended
http://www.gnu.org/software/make/make.html
zlib compression library (already installed on most modern systems)
It is used to internally compress GRASS raster files:
libz: http://www.gzip.org/zlib
flex lexical analyzer generator (flex) - note: lex is no longer supported, please use flex instead:
flex: http://www.gnu.org/software/flex/flex.html
parser generator (yacc, bison)
bison: http://www.gnu.org/software/bison/bison.html
libncurses4.x/5.x (already installed on modern systems)
http://www.gnu.org/software/ncurses/ncurses.html
ftp://ftp.gnu.org/pub/gnu/ncurses
X Window system for graphical output, development libraries (X development libraries, in some linux distributions they are separate packages, e.g. xlibs-dev)
http://www.xfree.org
http://www.x.org
winGRASS note: As alternative a generic MS-Windows driver is under construction which does not require X11
PROJ4 - Projection Library
http://proj.maptools.org
GDAL and OGR for import and export of most external raster and vector map formats
http://www.gdal.org

Optional requirements:

Tcl/Tk 8.x libraries (including the 'wish' program) to use the GRASS GUI menu system and the NVIZ visualization suite
On some platforms (e.g. Debian) GRASS 6.0.2 and earlier needed to be compiled against the Tcl/Tk 8.3 development packages in order to get NVIZ working correctly. This has been fixed in newer versions of GRASS.
see http://tcl.sourceforge.net
If hardware openGL support is missing in the X Server, Mesa-3.x (openGL clone) may be required for NVIZ
http://mesa3d.sourceforge.net
C++ Compiler (required for the r.terraflow module)
gcc: http://www.gnu.org/software/gcc/gcc.html
FFTW 2.x or 3.x (library for computing the Discrete Fourier Transform), required for i.fft and i.ifft and other modules
http://www.fftw.org
LAPACK / BLAS (libraries for numerical computing) for GMATH library (GRASS numerical lib)
[http://www.netlib.org/lapack] (usually available on Linux distros)
Note: the support is intended for future module implementations, no need to use it at time!
libpng (for r.out.png and the PNG driver), usually already installed.
http://www.libpng.org/pub/png/libpng.html
libjpeg (for r.out.tiff), usually already installed.
http://www.ijg.org
ftp://ftp.uu.net/graphics/jpeg
libtiff (for r.out.tiff), usually already installed.
http://www.libtiff.org
PostgreSQL libraries (for the PostgreSQL database interface)
http://www.postgresql.org
mySQL libraries (for the mySQL database interface)
http://www.mysql.org
sqlite libraries (for the sqlite database interface)
http://www.sqlite.org
unixODBC (for the ODBC database interface)
http://www.unixodbc.org
Motif or Lesstif libraries (for the "xanim" module)
http://www.lesstif.org
R language (for the R statistical language interface)
http://cran.r-project.org
FreeType2 (for TrueType font support and d.text.freetype)
http://www.freetype.org
Python
http://www.python.org

Note:

SUN Solaris users may go here to download precompiled libraries etc.:
http://www.sunfreeware.com

SGI IRIX users may go here to download precompiled libraries etc.:
http://freeware.sgi.com

MacOSX users may go here to download precompiled libraries etc.:
http://fink.sourceforge.net

Please report bugs here:
http://grass.itc.it/bugtracking/bugreport.html

$Id: REQUIREMENTS.html,v 1.14 2006/08/11 23:04:46 markus Exp $