Re: Dependencies for native compiling emacs not found

[Thierry Volpiatto]

Eli Zaretskii <eliz@gnu.org> writes:

>> From: Thierry Volpiatto <thievol@posteo.net>
>> Cc: emacs-devel@gnu.org
>> Date: Thu, 23 Dec 2021 17:37:13 +0000
>> 
>> >> -lgccjit -lX11 -lcairo >&5
>> >> /usr/bin/ld: cannot find -lgccjit
>> >> collect2: error: ld returned 1 exit status
>> >
>> > So the linker cannot find the libgccjit library.  Do you have it, and
>> > if so, is it installed in the directory where the linker looks for
>> > libraries, for example where you have libpng16, libcairo, and others.
>> >
>> > IOW, it sounds like your libgccjit installation is incomplete for some
>> > reason.
>> 
>> Hmm, after looking at the commands Oscar asked, it seems the GCC version
>> is 9.3.0, is it compatible with the libgccjit-10-dev?
>
> No, you need to either install GCC 10 or libgccjit-9-dev.

Ok, installing libgccjit-9-dev like Andreas suggested worked, so IIUC we
need a libgccjit version compatible with the gcc installed
e.g. libgccjit-10 with gcc-10 right?
Don't know why ubuntu install by default libgccgit 10, 8 and 7 but the 9
version which is the one needed with the gcc 9 version which is the one 
provided.

However I didn't find how to upgrade to gcc-10, installing it as
suggested by Manuel doesn't suffice apparently, gcc -v still return gcc
version 9.3.0.  Perhaps update-alternatives?

-- 
Thierry

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