netdev - Re: [PATCH bpf-next] libbpf: fixed build error for samples/bpf/

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Date:   Fri, 20 Apr 2018 08:59:00 -0700
From:   Martin KaFai Lau <kafai@...com>
To:     Björn Töpel <bjorn.topel@...il.com>
CC:     <ast@...com>, <daniel@...earbox.net>, <netdev@...r.kernel.org>,
        Björn Töpel <bjorn.topel@...el.com>
Subject: Re: [PATCH bpf-next] libbpf: fixed build error for samples/bpf/

On Fri, Apr 20, 2018 at 10:05:16AM +0200, Björn Töpel wrote:
> From: Björn Töpel <bjorn.topel@...el.com>
> 
> Commit 8a138aed4a80 ("bpf: btf: Add BTF support to libbpf") did not
> include stdbool.h, so GCC complained when building samples/bpf/.
> 
> In file included from /home/btopel/src/ext/linux/samples/bpf/libbpf.h:6:0,
>                  from /home/btopel/src/ext/linux/samples/bpf/test_lru_dist.c:24:
> /home/btopel/src/ext/linux/tools/lib/bpf/bpf.h:105:4: error: unknown type name ‘bool’; did you mean ‘_Bool’?
>     bool do_log);
>     ^~~~
>     _Bool
> 
> Signed-off-by: Björn Töpel <bjorn.topel@...el.com>
> ---
>  tools/lib/bpf/bpf.h | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/tools/lib/bpf/bpf.h b/tools/lib/bpf/bpf.h
> index 01bda076310f..553b11ad52b3 100644
> --- a/tools/lib/bpf/bpf.h
> +++ b/tools/lib/bpf/bpf.h
> @@ -24,6 +24,7 @@
>  #define __BPF_BPF_H
>  
>  #include <linux/bpf.h>
> +#include <stdbool.h>
Thanks for the fix!