[OE-core] Trying to compile Scipy, but stuck on native cc and ld

[Brandon Stafford]

Hi Khem et al.,

Thanks for your thoughts.

I believe I already have gfortran working, but as I say that, I fear that I
may be inadvertently using the host compiler rather than the cross-compiler.

The suggestion to figure out how to override CC and LD in Scipy's setup.py
is good; I'll see if I can figure that out.

Best regards,
Brandon

On Sat, Sep 8, 2012 at 3:46 AM, Khem Raj <raj.khem at gmail.com> wrote:

> On (06/09/12 12:36), Brandon Stafford wrote:
> > Hi all,
> >
> > I'm working on a recipe for Scipy, which is a Python library for
> > scientific computation. It contains chunks of code in C and Fortran.
> >
> > I have seen this recent message from Phil Blundell (about an entirely
> > different recipe) that suggests that the problem may be the use of the
> > host's cc and ld, rather than the correct ARM cross-compilers:
> >
> http://www.mail-archive.com/openembedded-devel@lists.openembedded.org/msg27120.html
> >
> > This looks like the problem to me, but I'm not sure how to tell the
> > Python build script that it should be cross-compiling. Based on Phil's
> > message, I'd expect it involves setting ${CC} and ${LD} and somehow
> > passing them to Python, but I'm not sure how.
> >
> > Full error message: http://pastebin.com/pMvaLpcz
> > Recipe in broken state: http://pastebin.com/a5jm45vB
> >
> > (The line export LDFLAGS = "-L${STAGING_LIBDIR}" is just there because
> > another mailing list suggestion:
> >
> http://www.mail-archive.com/openembedded-devel@lists.openembedded.org/msg24196.html
> .
> > It does not appear to affect the errors produced.)
> >
> > Any suggestions?
>
> FIrst you need fortran language frontends and support libraries
> compiled with gcc cross compiler. By default we only build c/c++
>
> the you need to take a look at scipy build system and see how
> its deriving its CC and LD variables and then override them with
> CC LD that recipe gets from environment when building
>
> >
> > Brandon
> >
> > --
> > Brandon Stafford
> > Rascal Micro: small computers for art and science
> > Somerville, MA, USA
> >
> > _______________________________________________
> > Openembedded-core mailing list
> > Openembedded-core at lists.openembedded.org
> > http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-core
>
> --
> -Khem
>



-- 
Brandon Stafford
Rascal Micro: small computers for art and science
Somerville, MA, USA
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