kicad-developers team mailing list archive

[John Beard <john.j.beard@xxxxxxxxx>]

Hi,

I've tracked it down to the following conditions:

* glm includes commit 68c7e7e50 (e.g. 0.9.9.3)
* C++11 (before is OK, C++14 is OK)
* The define GLM_FORCE_PURE is set (KiCad does this in xv3d_types.h)

I've filed a bug upstream at glm [1].

Notable line in the GLM manual: "The use of intrinsic functions by GLM
implementation can be avoided using the define GLM_FORCE_PURE before
any inclusion of GLM headers. This can be particularly useful if we
want to rely on C++14 constexpr."

It feels like someone hasn't realised C+11 does have constexpr, but
it's not as flexible as that in C++14.

Cheers,

John

[1]: https://github.com/g-truc/glm/issues/832

On Tue, Nov 6, 2018 at 3:25 PM Wayne Stambaugh <stambaughw@xxxxxxxxx> wrote:
>
> It also breaks msys2/mingw32/mingw64 builds. :(
>
> On 11/6/2018 9:19 AM, John Beard wrote:
> > Hi,
> >
> > Just a quick word of caution: I can can't get KiCad to build with glm
> > version 0.9.9.3, which was updated yesterday.
> >
> > The responsible change in glm appears to be 68c7e7e50 [1], which deals
> > with constexprs in GCC. There are various errors in the 3d-viewer [2].
> >
> > However, I am not sure if this is a bug in glm, KiCad, GCC or what. If
> > you're on Arch, downgrading to glm 0.9.9.2 works OK, as does a revert
> > of that commit when rebuilding the package.
> >
> > Just a heads-up! Cheers,
> >
> > John
> >
> > [1]: https://github.com/g-truc/glm/commit/68c7e7e50b934cd265251a0660096f1415647bbb
> > [2]: http://dpaste.com//113ND7S
> >
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