[rglfw] Undefined references issues when using latest GLFW (3.4-master)

[raysan5]

When updating raylib/src/external/glfw with latest GLFW from their GitHub master branch, raylib could not compile and examples fail with undefined references to GLFW symbols.

That happens if using raylib/src/Makefile that compiles the rglfw.c module. CMake avoids rglfw and compiles GLFW as a separate library automatically, so, it works ok with CMake.

rglfw.c module should be reviewed to define and include the proper GLFW modules depending on the platform.

EDIT: In case anyone test it, glfw3native.h requires a small tweak for raylib to avoid some windows.h symbols collisions:

//#include <windows.h>
 typedef void *PVOID;
 typedef PVOID HANDLE;
 typedef HANDLE HWND;

Credit - tjammer
When using the 3.3.5 zip version of glfw, raylib and examples compiles and runs normally.
When using the master branch of glfw which is the same as the 3.3.5 zip version, there are undefined references when compiling examples.

[raysan5]

@akdev21 Afaik, master branch is actually 3.4.0, despite no official release yet.

[gen2brain]

This is related to glfw/glfw@56a4cb0 added 20 days ago. A lot has changed, this should also fix the need to have a separate binary for X11 and Wayland glfw/glfw#1655.

[raysan5]

@gen2brain Yeah! Thanks for pointing it out! Actually it was commented on raylib Discord, some users investigated it.

Unfortunately, we were not able to get it working for rglfw.c raylib module. Actually, it was the only library not updated for raylib 4.0 release, last update was for raylib 3.7.

In any case, there is not an official GLFW 3.4.0 release yet so I'll wait for it before updating raylib.

[raysan5]

Waiting for an official release.