reserved identifier violation

[elfring]

I would like to point out that identifiers like “__initialize_egl_h__” and “__wpe_fdo_h__” do not fit to the expected naming convention of the C++ language standard.
Would you like to adjust your selection for unique names?

[aperezdc]

While this is not a pressing issue, I agree that we should avoid using reserved identifiers with leading underscores where possible and it would be a good cleanup to do at some point.

[aperezdc]

In the case of headers, it would be even better to replace the guards with #pragma once and avoid the issue of needing identifiers for the guards altogether.

[elfring]

How do you think about to achieve standard compliance?