Hi Doug:

Qhull installs no problem on my Mac desktop.  So maybe it is some gcc
weirdness that prevents me from installing it on my laptop.  I'll try
your suggested code on my laptop tonight.

Now that i have Qhull, um, how do i use it within Sage?  Can somebody
point me to the documentation?  I poked around /Applications/sage/
devel/sage-main/doc but couldn't find it.

Alex


On Apr 6, 3:23 am, "D. S. McNeil" <dsm...@gmail.com> wrote:
> > I tried installing the Qhull package which is an optional package on
> > the list athttp://www.sagemath.org/packages/optional/, but i got the
> > error below.  It appears that /usr/include/float.h can't be found, but
> > i *do* have that file.
>
> I'm not sure whether this is a Sage-related issue.  Could be revealing
> a preexisting config problem on your system in your gcc install.  The
> relevant line of float.h appears to be
>
> #include_next <float.h>
>
> which tries to find the *next* float.h in the include path after the
> current one, and it's that second float.h that it's failing to find.
> But I'm not sure why gcc is looking in /usr/include/float.h.  I think
> it should pick up your equivalent of
> /usr/lib/gcc/i686-apple-darwin10/4.2.1/include/float.h first instead,
> and never make it to /usr/include/float.h in the first place.  It
> feels kind of like gcc doesn't know where it lives.
>
> Does the code
>
> #include <float.h>
> int main(){return 0;}
>
> compile for you?  [gcc -E and gcc -v output if possible.]
>
> Doug
>
> --
> Department of Earth Sciences
> University of Hong Kong

-- 
To post to this group, send email to sage-support@googlegroups.com
To unsubscribe from this group, send email to 
sage-support+unsubscr...@googlegroups.com
For more options, visit this group at 
http://groups.google.com/group/sage-support
URL: http://www.sagemath.org

Reply via email to