[petsc-users] Eigenvalue solver method in Petsc

[Satish Balay]

On Sun, 17 Mar 2013, Barry Smith wrote:

> 
> On Mar 17, 2013, at 5:59 PM, Jed Brown <jedbrown at mcs.anl.gov> wrote:
> 
> > On Sun, Mar 17, 2013 at 5:50 PM, Barry Smith <bsmith at mcs.anl.gov> wrote:
> > 
> >    Make a branch and fix any you find. It is not suppose to.
> > 
> > I think this is a very tedious project and will probably have more stumbling blocks than path manipulation.
> > 
> > If there is a machine where we can ssh to msys bash, then there might be a chance.
> > 
> > I can't tell whether we would use GCC
>     
>   We would use the native Windows gnu compilers which use Window's paths. :-)

For one - there is no 'native Windows gnu compilers' that I'm aware
of. But if you mean gnu compilers that don't need cygwin.dll - then I
believe mingw compilers are also distributed as part of cygwin. [but I
have not tired that]

And if 'using Window's paths' is important - cygwin works with it aswell.
[if our buildtools can manage that]

>>>>>
balay at Win7-KVM ~/junk
$ ls c:\\cygwin\\home\\balay\\foo.h
c:\cygwin\home\balay\foo.h

balay at Win7-KVM ~/junk
$ gcc -c vard.c
vard.c:1:17: fatal error: foo.h: No such file or directory
compilation terminated.

balay at Win7-KVM ~/junk
$ gcc -c vard.c -Ic:\\cygwin\\home\\balay

balay at Win7-KVM ~/junk
$ 

<<<<<<<<<

But I think the primary concern here is 'remove cygwin dependency in
our buildtool chain'

I don't think msys is a solution for that. [And I suspect folks who
want that solution don't don't even want to install ms-python or run
configure with it]

Satish