[fpc-pascal] GLM library alternative?

[code dz]

tested with the fpc trunk , got only 3 fps increased .
but even with this result fpc does great job , compared with gcc7  ,
gcc is faster only about 45% . so when compared with a compiler like
gcc which get tens of patches par day from from around the world
including big companies like sumsung . and you get only 45% deference
in speed , no doubt fpc is great compiler .