[LyX/master] Update to boost 1.72

[Jean-Marc Lasgouttes]

At least we need it for Windows, like the rest of the 3rdparty stuff. I do not like it much either...

Also it is required when compiling with stdlib-debug (although these days there is another mechanism in gcc that I have not looked at yet).

JMarc

Le 9 janvier 2020 23:01:24 GMT+01:00, Pavel Sanda <sanda at lyx.org> a écrit :.
>
>Do we still need boost included in our tree instead of just using the
>system one?
>IIRC we needed this for particular version like decade ago and since
>then there
>was no problem (correct me if I am wrong). Handling it now seems like
>useless
>waste of time & we polute each of our tarballs by +20 megs of sources.
>
>Pavel