[LyX/master] Cmake build: Start demanding at least version 5.1 if compiling with gcc

[Jean-Marc Lasgouttes]

Le 25/10/2024 à 08:23, Pavel Sanda a écrit :
> Googling around
> 16.04 has Qt 5.5.1 & Python 3.5 & gcc 5.4 available even if not default.
> 18.04 has Qt 5.9.5 & Python 3.6 & gcc 7.5 available
> 
> We did unnecessarily drastic cut.
> We can require gcc 7 only, but I think you just killed support Qt 5.9.5 anyway?

With my latest commits, we now support Ubuntu 18.04, which actually has 
python 3.8 in its repositories.

Everything compiles fine with gcc 7 and Qt 5.9.5.

Are we happy now?

JMarc