Created on: Thu 27 Jul 2006 09:43:26 PM
Last saved: Thu 12 Aug 2010 12:16:54 PM 

=================================================================
                            Overview
=================================================================
This directory contains supplemental build information to
configure and install PDL on a windows system with the cygwin
toolset (http://www.cygwin.com).

The cygwin library provides the missing unix/posix functionality
to allow unix applications to be more easily ported to windows.
A windows PC with cygwin looks like different flavor of unix.
Since cygwin looks like a unix, [almost] all of the standard
perl functionality works and PDL can build pretty much as it
does on other unix systems.

See the INSTALL file for instructions on building and
installing PDL on cygwin and for notes on building the external
dependencies.

See the PDL/win32 subdirectory for instructions on building a
native windows PDL.



=================================================================
                             WORKING
=================================================================
The cygwin PDL includes all the base PDL functionality          
including bad values support (if configured) as well as the     
following modules which depend on the presence of various       
external dependencies:                                          

 PDL::FFTW
  (Builds if FFTW version 2 has been hand built and installed,
   cygwin Setup.exe only provides FFTW version 3).

 PDL::Graphics::PGPLOT
  (Builds if the FORTRAN pgplot library has been hand built
   and installed, and if the *Perl* PGPLOT module is installed)

 PDL::Graphics::TriD
  (Builds automatically if you have X11 and OpenGL + FreeGLUT
  installed).

 PDL::GSL::*
 PDL::GSLSF::*
  (Builds if GSL is installed via cygwin Setup.exe)

 PDL::IO::GD
  (Builds if the gd lib is installed via cygwin Setup.exe)

 PDL::GIS::Proj
 PDL::Transform::Proj4

 PDL::Slatec
  (Builds if ExtUtils::F77 has been installed)

 PDL::IO::Browser
  (Build may pass if enabled, disabled by default for all OSes)
 
 pdl2
  (Installed by default.  To use the new features, you
   will need to install Devel::REPL and Term::ReadLine::Perl
   or Term::ReadLine::Gnu.  The Gnu flavor is currently
   recommended for cygwin.)



=================================================================
                           NOT WORKING
=================================================================
These modules with external dependencies are not yet available
for cygwin:

 PDL::Graphics::IIS
  
 PDL::Graphics::PLplot  (PLplot and the PDL module support
                         is not working out of the box.  It
			 is believed that it should work with
			 care in building.)

 PDL::IO::HDF           (HDF has not been ported to cygwin)
  
 PDL::IO::NDF           (NDF has not been ported to cygwin)

