Compiler warnings when building with GCC

[Olek47]

Building with GCC 16 on Linux or mingw-w64 using -Wall -Wextra -Wpedantic flags generates the following compiler warnings:

In file included from main.cpp:3:
DirectXMath/Inc/DirectXMath.h:845:13: warning: ISO C++ prohibits anonymous structs [-Wpedantic]
  845 |             {
      |             ^
DirectXMath/Inc/DirectXMath.h:903:13: warning: ISO C++ prohibits anonymous structs [-Wpedantic]
  903 |             {
      |             ^
DirectXMath/Inc/DirectXMath.h:975:13: warning: ISO C++ prohibits anonymous structs [-Wpedantic]
  975 |             {
      |             ^
DirectXMath/Inc/DirectXMath.h:1043:13: warning: ISO C++ prohibits anonymous structs [-Wpedantic]
 1043 |             {
      |             ^
In file included from DirectXMath/Inc/DirectXMath.h:2372:
DirectXMath/Inc/DirectXMathMatrix.inl: In function ‘bool DirectX::XMMatrixDecompose(XMVECTOR*, XMVECTOR*, XMVECTOR*, FXMMATRIX)’:
DirectXMath/Inc/DirectXMathMatrix.inl:1165:16: warning: variable ‘aa’ set but not used [-Wunused-but-set-variable=]
 1165 |         size_t aa, bb, cc;
      |                ^~
DirectXMath/Inc/DirectXMathMatrix.inl:1165:20: warning: variable ‘bb’ set but not used [-Wunused-but-set-variable=]
 1165 |         size_t aa, bb, cc;
      |                    ^~

Clang doesn't seem to report any of these.