- Don't turn off warnings for winelib builds, fix them. Using __declspec on winelib builds just doesn't make sense.
- Drop the custom cross property 'winelib'. Detect it instead.
- Move the libdl dependency to the build system
- Don't run wine during mingw build process. Same as for wine builds, see 715d2571
* [dxvk] fixes for MSVC
* nullptr -> int is illegal conversion for MSVC. nullptr was replaced with VK_NULL_HANDLE
* MSVC does not support source code strings longer than 65535 chars. String was replaced with array of chars.
* [utils] fixes for MSVC
* __mingw_uuidof() does not exists in MSVC
* apply GCC pragma only for GCC
* added missing header
* [dxbc] fixes for MSVC
*added missing header
* [dxgi] fixes for MSVC
* user __declspec(uuid()) instead of _mingw_uuidof()
* do not use DLLEXPORT macro for MSVC
* [d3d11] fixes for MSVC
* replace WINBOOL with BOOL
* do not declare D3D11 structs for MSVC
* do not use DLLEXPORT macro for MSVC
* [meson] fix build scripts for MSVC
* change cpp version from c++1z to c++latest for MSVC
* set -DOMINMAX definition for MSVC
* disable test and wine_utils for MSVC
* use .def files instead of __declspec(dllexport) for MSVC (bypass 'C2375: redefinition; different linkage' error)
* fix .def files for MinGW
* add --enable-stdcall-fixup linker flag for MinGW
