Build fail on Debian x86-64 with master sources

[Stephan Bergmann]

On 8/23/24 09:51, Julien Nabet wrote:
> checking if ccache gcc is -fvisibility-inlines-hidden safe (Clang bug 11250)... no
> configure: error: Your gcc/clang is not -fvisibility-inlines-hidden safe. This is no longer supported.
> Error running configure at ./autogen.sh line 323.

yeah, you'd need to look into config.log to find out why that trips up 
that specific configure.ac check