(Case 1364927) URP 12 makes macro redefinition warnings

[Kichang-Kim]

Hi. I found that including URP’s shader library makes macro redefinition warnings.

It seems that some hlsl files of URP 12 has missing undef statements.

Reported as Case 1364927.

[DEEnvironment]

Hi kim
this issue has returned again in 12.1.1
see marco redefinition UnityInstancing.hlsl Unity Matrix - Unity Forum