GDB 13.1 and clang

[Simon Marchi]

> There is another version installed here:
> 
> $ pkg which /usr/local/include/diagnostics.h
> /usr/local/include/diagnostics.h was installed by package binutils-2.37_2,1
> 
> We have /usr/local/include early in the include list on FreeBSD to pick up some
> of the required libraries installed as packages. I will check for a package
> update or I revisit the build flags to see how it can be handled.
Huh, diagnostics.h is an internal header file, I don't think binutils
packages should ship it.  I just looked up, and Ubuntu and Arch packages
ship it as well... sigh.

Simon