#18078: CMake optional package
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Reporter: isuruf | Owner:
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-6.7
Component: packages: | Resolution:
optional | Merged in:
Keywords: | Reviewers:
Authors: Isuru Fernando | Work issues:
Report Upstream: N/A | Commit:
Branch: | 3aae9bf7905d0cb5ec63eaceef8ee9f590c87463
u/isuruf/cmake_optional_package | Stopgaps:
Dependencies: |
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Comment (by dimpase):
Replying to [comment:22 fbissey]:
> Replying to [comment:21 jdemeyer]:
> > @fbissey: and the problem is that we really need GCC for Sage, because
we need a Fortran compiler and `clang` doesn't (yet) support Fortran.
>
> I know. Although I have been trying very hard to think about fortran
code in sage apart from lapack. I think the only fortran bits where you
need a fortran compiler are in atlas, scipy and unfortunately for OS X: R.
>
> We use the accelerate framework instead of Atlas on OS X, one less
fortran thing.
>
> A fortran compiler is needed while compiling scipy :( lots of fortran
code in there.
>
> R is more pernicious, you need a fortran compiler on OS X because there
is a bug preventing us to use accelerate.
>
> flang is just a dot on the horizon so far. At least they say they
started work on it.
I don't even see dots, apart from some github repos untouched since 2013
or so.
We can consider going back to having a dedicated gfortran package, as it
used to be the case before OSX 10.7 (IIRC) broken xcode trouble started,
but otherwise use xcode's compilers.
--
Ticket URL: <http://trac.sagemath.org/ticket/18078#comment:24>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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