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Re: [PATCH] 9pfs: fix missing sys/mount.h include
From: |
Christian Schoenebeck |
Subject: |
Re: [PATCH] 9pfs: fix missing sys/mount.h include |
Date: |
Fri, 28 Oct 2022 14:14:13 +0200 |
On Friday, October 28, 2022 1:42:34 PM CEST Thomas Huth wrote:
> On 28/10/2022 13.21, Christian Schoenebeck wrote:
> > Fixes the following build error:
> >
> > fsdev/file-op-9p.h:156:56: error: declaration of 'struct statfs' will
> > not be visible outside of this function [-Werror,-Wvisibility]
> > int (*statfs)(FsContext *s, V9fsPath *path, struct statfs *stbuf);
> > ^
> >
> > As Windows neither has statfs, nor sys/mount.h, don't include it there.
> >
> > Fixes: 684f91203439 ("tests/9p: split virtio-9p-test.c ...")
> > Link: https://lore.kernel.org/all/2690108.PsDodiG1Zx@silver/
> > Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
> > ---
> > fsdev/file-op-9p.h | 2 ++
> > 1 file changed, 2 insertions(+)
> >
> > diff --git a/fsdev/file-op-9p.h b/fsdev/file-op-9p.h
> > index 4997677460..700f1857b4 100644
> > --- a/fsdev/file-op-9p.h
> > +++ b/fsdev/file-op-9p.h
> > @@ -24,6 +24,8 @@
> > #endif
> > #ifdef CONFIG_DARWIN
> > # include <sys/param.h>
> > +#endif
> > +#ifndef CONFIG_WIN32
> > # include <sys/mount.h>
> > #endif
>
> Do you feel confident that this will also work on other exotic systems?
> (e.g. does it work with "make vm-build-haiku.x86_64" ?)
> Otherwise it might be better to add a meson.build test for this header
> instead.
9pfs only supports Linux and macOS ATM, and Windows being WIP. From
meson.buid:
have_virtfs = get_option('virtfs') \
.require(targetos == 'linux' or targetos == 'darwin',
error_message: 'virtio-9p (virtfs) requires Linux or macOS') \
.require(targetos == 'linux' or cc.has_function('pthread_fchdir_np'),
error_message: 'virtio-9p (virtfs) on macOS requires the presence
of pthread_fchdir_np') \
.require(targetos == 'darwin' or (libattr.found() and libcap_ng.found()),
error_message: 'virtio-9p (virtfs) on Linux requires
libcap-ng-devel and libattr-devel') \
.disable_auto_if(not have_tools and not have_system) \
.allowed()
And Bin Meng just sent a related patch to fix building 9pfs tests
unconditionally:
20221028045736.679903-9-bin.meng@windriver.com/">https://lore.kernel.org/all/20221028045736.679903-9-bin.meng@windriver.com/
Best regards,
Christian Schoenebeck