[petsc-dev] CFLAGS and COPTFLAGS

[Jed Brown]

Barry Smith <bsmith at mcs.anl.gov> writes:
>    Do people really set some of the above and not set the -O%d one at the same time?

I don't know.  Sometimes the MPI wrapper adds the -O flag itself.  The
user might know that and thus not bother adding it themselves.  I think
it would be surprising for some special flags to cause such changes in
behavior.  I don't have a strong opinion on this point, but I think we
should do something better than we have now.
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