Re: [PATCH] libepoxy: RDEPEND on libgl

[Andreas Oberritter <obi@opendreambox.org>]

Hello Jussi,

On 02.10.2015 14:41, Jussi Kukkonen wrote:
> Automatic dependency tracking does not notice this (understandable
> with the dlopen trickery epoxy does).
> 
> [YOCTO #8371]
> 
> Signed-off-by: Jussi Kukkonen <jussi.kukkonen@intel.com>
> ---
> 
> 
> I'm not super familiar with the opengl handling so please let me know if there's some
> better way to do this: The problem being fixed is e.g. gtk3-demo failing to start
> because it fails to dlopen libGL.so.1.
> 
> 
>  meta/recipes-graphics/libepoxy/libepoxy_git.bb | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/meta/recipes-graphics/libepoxy/libepoxy_git.bb b/meta/recipes-graphics/libepoxy/libepoxy_git.bb
> index ad17293..fe05d4e 100644
> --- a/meta/recipes-graphics/libepoxy/libepoxy_git.bb
> +++ b/meta/recipes-graphics/libepoxy/libepoxy_git.bb
> @@ -20,6 +20,7 @@ S = "${WORKDIR}/git"
>  inherit autotools pkgconfig
>  
>  DEPENDS = "util-macros virtual/egl"
> +RDEPENDS_${PN} = "libgl"
>  
>  PACKAGECONFIG[x11] = "--enable-glx, --disable-glx, virtual/libx11"

If epoxy behaves like other projects, then I'd try removing virtual/egl from
DEPENDS and replacing the line above with this one:

PACKAGECONFIG[x11] = "--enable-glx, --disable-glx, virtual/libx11 virtual/gl, libgl"

An additional packageconfig for gles2 should be added. For a rather complex
example covering many environments see meta/recipes-graphics/cogl/cogl-1.0.inc.

>  PACKAGECONFIG ??= "${@bb.utils.contains('DISTRO_FEATURES', 'x11', 'x11', '', d)}"

An empty default probably doesn't make sense for this library, unless --disable-glx
implies --enable-egl (or something similar). But then you'd need to keep the build
dependency on virtual/egl, even though it's most probably unused if x11 is available.

Regards,
Andreas