Bug#1025529: llvm-toolchain-14: FTBFS with grpc 1.51+

[László Böszörményi (GCS)]

Source: llvm-toolchain-14
Version: 1:14.0.6-9
Severity: important
Usertags: grpc1_51
Tags: ftbfs bookworm sid

Hi,

I'm going to start the gRPC transition real soon. Your package FTBFS
with it. Main reason is that during stage 2 build
bin/clangd-index-server-monitor needs to link with -lgpr and
-labsl_synchronization as well.
Due to time constraints I can't (yet) provide you a drop-in patch -
but the solution is provided above.
Please look into it and be prepared to take core of it when time comes.

Thanks,
Laszlo/GCS