Building --with-native-compilation on Ubuntu 18.04 LT

[H. Dieter Wilhelm]

Hello Emacs

I'd like to compile Emacs with the --with-native-compilation support.
But configure was complaining about a missing libgccjit executable.  I
thought it a good idea to install libgccjit with the same version number
as the installed gcc: libgccjit-7-dev.

But now configure is complaining that libgccjit can't compile a test
program.

The only hint I found is on StackExchange with a recipe for Ubuntu 18.04
using gcc-10.  Do you know if it is really necessary to install such a
new version of gcc?  (A problem is that gcc-10 is not readily available
in the Ubuntu repo.)

Thank you

      Dieter
-- 
Best wishes
H. Dieter Wilhelm
Zwingenberg, Germany