bcc: fix build on musl

srcpkgs/bcc/patches/950cffc0366981d4e41b08f007b37bd6af931f25.patch

@@ -0,0 +1,43 @@
+From 950cffc0366981d4e41b08f007b37bd6af931f25 Mon Sep 17 00:00:00 2001
+From: Jesus Sanchez-Palencia <jesussanp@google.com>
+Date: Wed, 8 Mar 2023 16:48:36 -0800
+Subject: [PATCH] libbpf: Revert poisoning of strlcpy
+
+This reverts commit 6d0c4b11e743("libbpf: Poison strlcpy()").
+
+It added the pragma poison directive to libbpf_internal.h to protect
+against accidental usage of strlcpy but ended up breaking the build for
+toolchains based on libcs which provide the strlcpy() declaration from
+string.h (e.g. uClibc-ng). The include order which causes the issue is:
+
+    string.h,
+    from Iibbpf_common.h:12,
+    from libbpf.h:20,
+    from libbpf_internal.h:26,
+    from strset.c:9:
+
+Fixes: 6d0c4b11e743 ("libbpf: Poison strlcpy()")
+Signed-off-by: Jesus Sanchez-Palencia <jesussanp@google.com>
+Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
+Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
+Link: https://lore.kernel.org/bpf/20230309004836.2808610-1-jesussanp@google.com
+Signed-off-by: Alexei Starovoitov <ast@kernel.org>
+---
+ src/libbpf_internal.h | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/src/libbpf_internal.h b/src/libbpf_internal.h
+index fbaf68335..e4d05662a 100644
+--- a/src/cc/libbpf/src/libbpf_internal.h
++++ b/src/cc/libbpf/src/libbpf_internal.h
+@@ -20,8 +20,8 @@
+ /* make sure libbpf doesn't use kernel-only integer typedefs */
+ #pragma GCC poison u8 u16 u32 u64 s8 s16 s32 s64
+ 
+-/* prevent accidental re-addition of reallocarray()/strlcpy() */
+-#pragma GCC poison reallocarray strlcpy
++/* prevent accidental re-addition of reallocarray() */
++#pragma GCC poison reallocarray
+ 
+ #include "libbpf.h"
+ #include "btf.h"