MSVC: extern/ tweaks to make it build
Not everything is supported but it does build with the following CMakeSettings.json variables and dependencies from vcpkg:
"variables": [
{ "name": "OPENMW_USE_SYSTEM_BULLET", "value": "False", "type": "BOOL" },
{ "name": "OPENMW_USE_SYSTEM_MYGUI", "value": "False", "type": "BOOL" },
{ "name": "OPENMW_USE_SYSTEM_OSG", "value": "False", "type": "BOOL" },
{ "name": "BULLET_STATIC", "value": "True", "type": "BOOL" },
{ "name": "OSG_STATIC", "value": "False", "type": "BOOL" },
{ "name": "MYGUI_STATIC", "value": "False", "type": "BOOL" }
],
What works: openmw.exe builds
What does not work: Not all DLLs are copied into the output directory with this set up (SDL2, MyGUI, Bullet, OSG, are not copied).