[Debian-med-packaging] Bug#833004: ball: FTBFS: error: 'isnan' was not declared in this scope

[Santiago Vila]

Package: ball
Version: 1.4.3~beta1-1
Severity: serious

Dear maintainer:

This package currently fails to build from source:


/build/ball-1.4.3~beta1/source/MOLMEC/MINIMIZATION/steepestDescent.C:214:46:
  required from here
    /build/ball-1.4.3~beta1/include/BALL/MATHS/common.h:175:18: error:
    'isnan' was not declared in this scope, and no declarations were
found
by argument-dependent lookup at the point of instantiation
[-fpermissive]
     return (isnan(t) != 0);


I don't know how to fix this but I know that lots of packages suffered
from this "isnan" problem. If you search for any of them which was
already fixed I'm quite confident that a fix could be found easily.


Build logs here:

https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/ball.html

Thanks.