add gl-headers subproject for necessary OpenGL headers
-rw-r--r-- 578 .gitignore
-rw-r--r-- 0 .gitmodules
-rw-r--r-- 25299 LICENSE
-rw-r--r-- 4235 README.md
-rwxr-xr-x 3111 checkout-branch-worktree
-rw-r--r-- 2011 common.py
-rwxr-xr-x 4960 git-update
-rwxr-xr-x 10577 gst-uninstalled.py
-rw-r--r-- 4840 meson.build
-rw-r--r-- 890 meson_options.txt
-rw-r--r-- 7227 msys2_setup.py
-rwxr-xr-x 2557 setup.py
drwxr-xr-x - subprojects