Building the plugin with Meta SDK 83 fails

[mhilbrunner]

Building the plugin with the headers from Meta SDK 83 (Dec. '25) fails for me on Windows 11 with current master (1029347):

Comand:

gradlew.bat buildPlugin -Pmeta_headers=...\ovr_openxr_mobile_sdk_83\OpenXR\meta_openxr_preview

Output error:

=====
In file included from plugin\src\main\cpp\extensions\openxr_fb_body_tracking_extension_wrapper.cpp:30:
plugin\src\main\cpp\include/extensions/openxr_fb_body_tracking_extension_wrapper.h:34:10: fatal error: 'meta_openxr_preview/meta_body_tracking_calibration.h' file not found
   34 | #include <meta_openxr_preview/meta_body_tracking_calibration.h>
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 error generated.

=====
scons: *** [plugin\src\main\cpp\extensions\openxr_fb_body_tracking_extension_wrapper.os] Error 1
scons: building terminated because of errors.

> Task :buildGodotOpenXRVendorsAndroidArm64Debug FAILED

FAILURE: Build failed with an exception.

Building with the immediately previous version of the SDK (81, Oct. '25) succeeds as expected.

[dsnopek]

Ah, this is probably because XR_META_body_tracking_calibration is now part of the OpenXR spec. We'll need to adjust this when we update our local copy of the OpenXR headers.