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Re: [PATCH 2/2] document ISL requirement for GCC installation
On Fri, Aug 12, 2011 at 07:28:52PM +0000, Joseph S. Myers wrote:
> On Fri, 12 Aug 2011, Sven Verdoolaege wrote:
>
> > On Fri, Aug 12, 2011 at 07:16:55PM +0000, Joseph S. Myers wrote:
> > > Do you mean there is not only a requirement to build both libraries, but
> > > there is a requirement to build CLooG *first*, then ISL, so that ISL's
> > > libisl.a overwrites CLooG's rather than the other way round (supposing
> > > that they are installed in the same prefix)?
> >
> > No. You build isl first and configure CLooG to use that isl.
>
> Will CLooG give an error if you configure it in such a way that its isl
> would overwrite one previously installed? If not, this seems too
> error-prone - there's no obvious way for CLooG to know whether a
> previously installed isl comes from a previous installation of CLooG
> (should be overwritten) or was installed on its own (so CLooG should be
> built to use it).
If CLooG is told to use a previously built isl, it won't even compile
the bundled isl.
skimo