how to enable -m64 on x86-linux for building ATLAS

Brian Dessent brian@dessent.net
Sun Apr 6 06:37:00 GMT 2008


Brian Dessent wrote:

> For example I seem to recall a recent PR in which gmp was configured on
> e.g. sparc-sun-solaris2.10 but it detected that the machine was really
> sparc64-* and built binaries of the wrong flavor, leading to an error in
> the gcc build when it tried to link the stage 1 xgcc.

For the sake of the archives, it was PR 35628 and it was powerpc-darwin
not sparc: <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35628>.  In any
case, the solution was to configure gmp and mpfr with explicit
--host=powerpc-darwin so that they didn't try to build 64 bit libraries.

Brian



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