https://github.com/systemd/systemd/commit/dde6f1d7456db7aa72d24b1d6956b419b6f9945c

From dde6f1d7456db7aa72d24b1d6956b419b6f9945c Mon Sep 17 00:00:00 2001
From: Sam James <sam@gentoo.org>
Date: Sat, 24 Aug 2024 13:09:47 +0100
Subject: [PATCH] meson: search for 'bpf-unknown-none' too

We currently search for 'bpf-gcc' and 'bpf-none-gcc'. Gentoo's
sys-devel/bpf-toolchain package uses 'bpf-unknown-none-gcc', as does Fedora's
cross-binutils. Search for this name too.
---
 meson.build | 1 +
 1 file changed, 1 insertion(+)

diff --git a/meson.build b/meson.build
index 5e0b666c64b17..fbc2bbdf2f22f 100644
--- a/meson.build
+++ b/meson.build
@@ -1109,6 +1109,7 @@ else
         elif bpf_compiler == 'gcc'
                 bpf_gcc = find_program('bpf-gcc',
                                        'bpf-none-gcc',
+                                       'bpf-unknown-none-gcc',
                                        required : true,
                                        version : '>= 13.1.0')
                 bpf_gcc_found = bpf_gcc.found()