[tlbuild] dvisvgm-2.1 trial build

[Ken Brown]

On 2/2/2017 6:01 PM, Karl Berry wrote:
>     kb>
>     -AX_CXX_COMPILE_STDCXX([11], [noext])
>     +AX_CXX_COMPILE_STDCXX([11])
>
> Ken, I sent the idea to Martin. Will see what he says.
>
>     dk> Maybe this information could be used to fix then TeXLive source
>
> Dick, I sent this info to Martin also. Better to make changes upstream
> than in TL, if at all possible, after all.

Hi Karl and Martin,

I wonder if Dick's issue could be the same as mine.  I think his error 
messages all refer to types, functions, and constants that are not 
defined in ISO C/C++, so the fix might again be to use -std=gnu++11 or 
-D_DEFAULT_SOURCE.

Ken