[petsc-dev] DESTDIR

[Dmitry Karpeev]

The users definitely have to decide in the end for themselves,
but they also need to know how the libraries they are about to link against
were compiled, I think.  I prefer to give the users more information and then
let them decide whether to throw it out, rather than give them too little
(I hate being in that position, I know that much).

On Fri, Apr 23, 2010 at 10:00 AM, Jed Brown <jed at 59a2.org> wrote:
> On Fri, 23 Apr 2010 09:40:16 -0500, Dmitry Karpeev <karpeev at mcs.anl.gov> wrote:
>> I would just add that petsc-config should, in my opinion, define
>> compile and link commands (i.e., including the compiler and the linker),
>> not merely the relevant flags (some of those are compiler-dependent).
>
> Yes, the compiler needs to be available, but in the end, it's up to the
> user whether to use the same compiler or try a different one.  To be
> clear, I'm not alone in hating wrapper compilers and want nothing to do
> with petscCC or something of that form.  But I think it is desirable for
> users to have
>
>  CC ?= `petsc-config --c-compiler`
>  CFLAGS += `petsc-config --includes`
>  LDFLAGS += `petsc-config --libs --shared --no-rpath`
>
> readily available in whatever build system they like.
>
> Jed
>