Hi, On Sun, Nov 6, 2011 at 18:25, Stéphane Glondu <[email protected]> wrote: >> will ocamlgsl on mips and mipsel be fixed sometime, so orpie will >> be available on those architectures again? > > Actually, ocamlgsl compiles with no error when the #error directive is > commented out. There is a "make test" target, but it uses an unknown > "fort" command... and even so, the test-suite doesn't look very > thorough. I have no idea what is wrong on architectures with alignment > requirements, nor how to make it crash. ocamlgsl is ~9,000 lines of C > code... I don't know exactly what to fix in there. > > I've put the upstream author in CC; maybe he can enlighten us...
Ocamlgsl doesn't "work" on architectures with double-word alignment for float64 values (the ARCH_ALIGN_DOUBLE of the OCaml headers) because OCaml values of type "float array" are converted by a simply cast to (double *) in C before the call to GSL. This works since float arrays are unboxed in OCaml. But OCaml values are single-word aligned ... so archs with ARCH_ALIGN_DOUBLE would need to copy the whole array to re-align it before calling the C function and Ocamlgsl doesn't do that. So if you disable the #error directive, ocamlgsl will segfault as soon as you use a function with a 'float array' argument somewhere. (fort is an old framework for unit tests in OCaml, I must still be somewhere on SourceForge ... anyway yes, the "test suite" is pretty light :) -- Olivier -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: http://lists.debian.org/CAD5gH1HQtS1sc=CvLBORw95Z1FE73ScRCmBS72OcbTd+Jcpq=g...@mail.gmail.com
