glamor_egl_get_driver_name not defined in Debian 10

[laigor]

xorgxrdp v0.9.19 not started in Debian 10 because glamor_egl_get_driver_name not defined.
Failed to load /usr/lib/xorg/modules/drivers/xrdpdev_drv.so: /usr/lib/xorg/modules/drivers/xrdpdev_drv.so: undefined symbol: glamor_egl_get_driver_name
I looked at the file /usr/include/xorg/glamor.h and made sure that glamor_egl_get_driver_name is not present in Debian 10 and present in Debian 11.

[matt335672]

glamor_egl_get_driver_name is defined in /usr/lib/xorg/modules/libglamoregl.so:-

$ nm -D /usr/lib/xorg/modules/libglamoregl.so | grep glamor_egl_get_driver_name
00000000000092b0 T glamor_egl_get_driver_name

On Debian 10, this symbol is not defined, hence the error.

On the face of it, it looks like you're trying to run xorgxrdp compiled on Debian 11 on Debian 10. This isn't a supported operation.

Or am I missing something?

[laigor]

On debian 10 command

$ nm -D /usr/lib/xorg/modules/libglamoregl.so | grep glamor_egl_get_driver_name
$

gives empty result.
xorgxrdp compiled on Debian 10

[laigor]

Debian 11:

$ grep glamor_egl_get_driver_name /usr/include/xorg/glamor.h
extern _X_EXPORT const char *glamor_egl_get_driver_name(ScreenPtr screen);

Debian 10:

$ grep glamor_egl_get_driver_name /usr/include/xorg/glamor.h 
$

[matt335672]

That's right, and is more-or-less what I've just said.

If you want to run xrdp 0.9.19 on Debian 10, you'll need to build it on Debian 10 without the --enable-glamor flag. It looks like your executable has been built against a later version of the X server which has the necessary symbols defined.

Does that make sense?

[laigor]

#238

[matt335672]

@laigor - is this now fixed with #239?