Help for a Dummy

[Tim Prince]

On 1/30/2012 8:54 AM, Brian D. McGrew wrote:
> Malcolm,
>
> Since you're in a Windows environment, go check out Cygwin at
> http://sources.redhat.com/cygwin.  It's all precompiled binaries of the
> GNU collection and other stuff setup for Windows.
>
> -brian
>
> On 1/30/12 6:43 AM, "Malcolm"<mjones_aus@exemail.com.au>  wrote:
>
>> I am keen to install and use the GNU Fortran compiler for use with my
>> hydrologic research. I've left the Uni (retired) and don't have
>> access anymore to their resources.
>> However, I can't find a simple explanation of (a) what programs I
>> need to download (b) how I set them up on my PC (running Windows
>> 7x64). (c) how I compile and run my fortran programs. I've scanned
>> the gcc.pdf&  gfortan.pdf, but they don't seem to help at all.
>> Can you please help me, or point me to someone/documentation that can?
>> thanks
>> Malcolm Jones
>>
>
The Windows versions of gfortran aren't well written up.  As Brian said, 
cygwin can be recommended.  There you have several choices (all of them 
optional installations from cygwin setup):
gfortran: the 32-bit compiler which uses the cygwin libraries (runs fine 
on X64).  This is part of the gcc which is supported by the cygwin 
mailing list.  A special cygwin license governs your distribution of 
applications built this way.

x86_64-w64-mingw32-gfortran: a "cross compiler" for "native" 64-bit 
Windows, derived from the sourceforge mingw32 project.  It links against 
.dlls which cygwin setup installs in
/usr/x86_64-w64-mingw32/sys-root/mingw/bin/
but there is no automatic library PATH setup, an obscure fact which I 
haven't seen documented.  As far as I know, there is no help forum for 
these Windows cross compilers, but they are of reasonably high quality; 
even the OpenMP implementation has become satisfactory.

A similar cross compiler for native 32-bit Windows.

-- 
Tim Prince