[Bug libgdiagnostics/121260] [16 Regression] Build failure on --enable-checking=release: gcc/diagnostics/changes.cc:900:2: error: expected '}' at end of input

[frank.scheiner at web dot de via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121260

--- Comment #3 from Frank Scheiner <frank.scheiner at web dot de> ---
(In reply to Mikael Pettersson from comment #2)
> Created attachment 61981 [details]
> correct nesting of namespaces and #if CHECKING_P blocks
> 
> There are more source files affected. The attached patch works for me.

Works fine for me, too, much obliged:

```
root@esprimo-e420:/usr/src/buildall# time ./build --toolchain ia64
Building ia64... (target ia64-linux)
  binutils: configure [00:06] build [01:30] install [00:07]
       gcc: configure [00:07] build [07:07] install [00:39]
  OK

real    9m36.254s
user    43m30.025s
sys     2m7.553s
``