When running "./configure --static --disable-system" there is currently
a warning if the static version of libpng is missing:

 WARNING: Static library 'png16' not found for dependency 'libpng', may not
 be statically linked

Since it does not make sense to look for the VNC-related libraries at all
when we're building without system emulator binaries, let's add a check
for have_system here to silence this warning.

Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meson.build b/meson.build
index 7e58e6279b..f07236d947 100644
--- a/meson.build
+++ b/meson.build
@@ -931,7 +931,7 @@ vnc = not_found
 png = not_found
 jpeg = not_found
 sasl = not_found
-if not get_option('vnc').disabled()
+if have_system and not get_option('vnc').disabled()
   vnc = declare_dependency() # dummy dependency
   png = dependency('libpng', required: get_option('vnc_png'),
                    method: 'pkg-config', kwargs: static_kwargs)
-- 
2.27.0

On Mon, Sep 06, 2021 at 05:39:39PM +0200, Thomas Huth wrote:
> When running "./configure --static --disable-system" there is currently
> a warning if the static version of libpng is missing:
> 
>  WARNING: Static library 'png16' not found for dependency 'libpng', may not
>  be statically linked
> 
> Since it does not make sense to look for the VNC-related libraries at all
> when we're building without system emulator binaries, let's add a check
> for have_system here to silence this warning.
> 
> Signed-off-by: Thomas Huth <thuth@redhat.com>
> ---
>  meson.build | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/meson.build b/meson.build
> index 7e58e6279b..f07236d947 100644
> --- a/meson.build
> +++ b/meson.build
> @@ -931,7 +931,7 @@ vnc = not_found
>  png = not_found
>  jpeg = not_found
>  sasl = not_found
> -if not get_option('vnc').disabled()
> +if have_system and not get_option('vnc').disabled()
>    vnc = declare_dependency() # dummy dependency
>    png = dependency('libpng', required: get_option('vnc_png'),
>                     method: 'pkg-config', kwargs: static_kwargs)

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

Regards,
Daniel
-- 
|: https://berrange.com      -o-    https://www.flickr.com/photos/dberrange :|
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|: https://entangle-photo.org    -o-    https://www.instagram.com/dberrange :|

On 9/6/21 5:39 PM, Thomas Huth wrote:
> When running "./configure --static --disable-system" there is currently
> a warning if the static version of libpng is missing:
> 
>  WARNING: Static library 'png16' not found for dependency 'libpng', may not
>  be statically linked
> 
> Since it does not make sense to look for the VNC-related libraries at all
> when we're building without system emulator binaries, let's add a check
> for have_system here to silence this warning.
> 
> Signed-off-by: Thomas Huth <thuth@redhat.com>
> ---
>  meson.build | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

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

On 06/09/21 17:39, Thomas Huth wrote:
> When running "./configure --static --disable-system" there is currently
> a warning if the static version of libpng is missing:
> 
>   WARNING: Static library 'png16' not found for dependency 'libpng', may not
>   be statically linked
> 
> Since it does not make sense to look for the VNC-related libraries at all
> when we're building without system emulator binaries, let's add a check
> for have_system here to silence this warning.
> 
> Signed-off-by: Thomas Huth <thuth@redhat.com>
> ---
>   meson.build | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/meson.build b/meson.build
> index 7e58e6279b..f07236d947 100644
> --- a/meson.build
> +++ b/meson.build
> @@ -931,7 +931,7 @@ vnc = not_found
>   png = not_found
>   jpeg = not_found
>   sasl = not_found
> -if not get_option('vnc').disabled()
> +if have_system and not get_option('vnc').disabled()
>     vnc = declare_dependency() # dummy dependency
>     png = dependency('libpng', required: get_option('vnc_png'),
>                      method: 'pkg-config', kwargs: static_kwargs)
> 

Queued, thanks.

Paolo