CONFIG_LINUX_IO_URING is not included in config-host.mak and therefore is
not usable in "when" clauses.  Check the availability of the library,
which matches the condition for the non-stubbed version block/io_uring.c.

At this point, the difference between libraries that have config-host.mak
entries and those that do not is quite confusing.  The remaining ~dozen
should be converted in 6.2.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 stubs/meson.build | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/stubs/meson.build b/stubs/meson.build
index 2e79ff9f4d..d3fa8646b3 100644
--- a/stubs/meson.build
+++ b/stubs/meson.build
@@ -15,7 +15,9 @@ stub_ss.add(files('fdset.c'))
 stub_ss.add(files('fw_cfg.c'))
 stub_ss.add(files('gdbstub.c'))
 stub_ss.add(files('get-vm-name.c'))
-stub_ss.add(when: 'CONFIG_LINUX_IO_URING', if_true: files('io_uring.c'))
+if linux_io_uring.found()
+  stub_ss.add(files('io_uring.c'))
+endif
 stub_ss.add(files('iothread-lock.c'))
 stub_ss.add(files('isa-bus.c'))
 stub_ss.add(files('is-daemonized.c'))
-- 
2.31.1

On 7/12/21 5:18 PM, Paolo Bonzini wrote:
> CONFIG_LINUX_IO_URING is not included in config-host.mak and therefore is
> not usable in "when" clauses.  Check the availability of the library,
> which matches the condition for the non-stubbed version block/io_uring.c.
> 
> At this point, the difference between libraries that have config-host.mak
> entries and those that do not is quite confusing.  The remaining ~dozen
> should be converted in 6.2.
> 
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> ---
>  stubs/meson.build | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

On Mon, Jul 12, 2021 at 05:18:10PM +0200, Paolo Bonzini wrote:
> CONFIG_LINUX_IO_URING is not included in config-host.mak and therefore is
> not usable in "when" clauses.  Check the availability of the library,
> which matches the condition for the non-stubbed version block/io_uring.c.
> 
> At this point, the difference between libraries that have config-host.mak
> entries and those that do not is quite confusing.  The remaining ~dozen
> should be converted in 6.2.
> 
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> ---
>  stubs/meson.build | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>

> 
> diff --git a/stubs/meson.build b/stubs/meson.build
> index 2e79ff9f4d..d3fa8646b3 100644
> --- a/stubs/meson.build
> +++ b/stubs/meson.build
> @@ -15,7 +15,9 @@ stub_ss.add(files('fdset.c'))
>  stub_ss.add(files('fw_cfg.c'))
>  stub_ss.add(files('gdbstub.c'))
>  stub_ss.add(files('get-vm-name.c'))
> -stub_ss.add(when: 'CONFIG_LINUX_IO_URING', if_true: files('io_uring.c'))
> +if linux_io_uring.found()
> +  stub_ss.add(files('io_uring.c'))
> +endif
>  stub_ss.add(files('iothread-lock.c'))
>  stub_ss.add(files('isa-bus.c'))
>  stub_ss.add(files('is-daemonized.c'))
> -- 
> 2.31.1
> 
> 

Regards,
Daniel
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