Re: Bug#1096423: cenon.app: ftbfs with GCC-15

[Yavor Doganov <yavor@gnu.org>]

Control: clone -1 -2
Control: reassign -2 gobjc-15 15-20250220-1
Control: retitle -2 Implementation of "if declarations" makes instance variables unknown under certain conditions
Control: forwarded -2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119117
Control: block -1 with -2

On Mon, 17 Feb 2025 19:06:45 +0200,
Matthias Klose wrote:
> VArc.m:3052:22: error: unknown type name ‘angle’
>  3052 |                 if ( angle*a <= 0.0 && Diff(angle, a) >= 180.0 )
>       |                      ^~~~~

This is an instance variable which should always be accessible within
a method implementation.  If I add a local declaration, I get "local
declaration shadows ivar" warning.  That's absurd.

I included a minimal example that doesn't depend on gnustep-base in
the upstream report, and also pointed out the change that introduced
this bug.