Re: [Qemu-devel] Problem compiling qemu-2.1.1

[Peter Maydell]

On 4 March 2018 at 11:15, Frans de Boer <address@hidden> wrote:
> LS,
>
> I try to compile qemu and get the next error message:
>
> mnt/rhome/frans-tw/data/projects/linux/kernel/qemu/qemu-2.11.1/util/memfd.c:40:12:
> error: static declaration of ‘memfd_create’ follows non-static declaration
>  static int memfd_create(const char *name, unsigned int flags)
>             ^~~~~~~~~~~~
> In file included from /usr/include/bits/mman-linux.h:115:0,
>                  from /usr/include/bits/mman.h:45,
>                  from /usr/include/sys/mman.h:41,
>                  from
> /mnt/rhome/frans-tw/data/projects/linux/kernel/qemu/qemu-2.11.1/include/sysemu/os-posix.h:29,
>                  from
> /mnt/rhome/frans-tw/data/projects/linux/kernel/qemu/qemu-2.11.1/include/qemu/osdep.h:104,
>                  from
> /mnt/rhome/frans-tw/data/projects/linux/kernel/qemu/qemu-2.11.1/util/memfd.c:28:
> /usr/include/bits/mman-shared.h:46:5: note: previous declaration of
> ‘memfd_create’ was here
>  int memfd_create (const char *__name, unsigned int __flags) __THROW;
>
> I use the newest Tumbleweed of openSuse with the gcc 7.3.0 compiler suite.

Hi -- this looks like a QEMU incompatibility with newer glibc that
we fixed in QEMU commit 75e5b70e6b5dcc4. That didn't quite make
the 2.11.0 release, but will be in 2.12.0.

thanks
-- PMM