Add missing include

[smilediver]

Adds missing include

[halx99]

for which macro ?

[rh101]

for which macro ?

My mistake, since I moved void set(const float* array) from Vec4.cpp to Vec4.h, and it's using the GP_ASSERT macro in the body of that function. Strange that it didn't throw a compilation error in the build.

[halx99]

pch, I guess

[smilediver]

Yup, it's for GP_ASSERT. We include individual headers, so we will catch issues like these.