On Sat, 2016-01-09 at 17:21 -0800, Khem Raj wrote:
> loff_t is guarded with _GNU_SOURCE on some C library implementations
> e.g. musl since this type is not defined by POSIX. Define _GNU_SOURCE to
> include this define, it should help compiling on musl while nothing
> changes for glibc based systems since there _GNU_SOURCE is already
> defined
> 
> Signed-off-by: Khem Raj <raj.khem@gmail.com>

This appears to still be needed...

> ---
>  vmcore-dmesg/vmcore-dmesg.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/vmcore-dmesg/vmcore-dmesg.c b/vmcore-dmesg/vmcore-dmesg.c
> index 0364636..a8f56df 100644
> --- a/vmcore-dmesg/vmcore-dmesg.c
> +++ b/vmcore-dmesg/vmcore-dmesg.c
> @@ -1,4 +1,5 @@
>  #define _XOPEN_SOURCE 600
> +#define _GNU_SOURCE
>  #define _LARGEFILE_SOURCE 1
>  #define _FILE_OFFSET_BITS 64
>  #include