Hello!

I'm using MinGW and GCC for my Qt projects and I want to add the compiler option -O3 to optimize my code. I thought that the place to add compiler options was in Projects->Make->Make arguments, where I successfully already added the -j compiler option, but this time it doesn't work no matter how I try to insert -O3 there.

Should I put it in another place? And if not, how exactly to do it?


Thanks,

Momergil