[petsc-dev] Configure problem on Titan

[Jed Brown]

Barry Smith <bsmith at mcs.anl.gov> writes:
>   If one fails then configure moves on an tries with the other. Is
>   this a problem? We do it all over the place on configure.

The problem is that both may "work" (link without errors), but exhibit
subtle errors at run-time due to ABI mismatch.
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