@steve_kite in ton-compiler, how can I add a fift library during compilation for a contract? My code requires TonUtil.fif but since its missing compileFunc fails.

what is impossible

the ton-compiler error or impossible to add such lib

i only need Gram, which is defined in TonUtil.fif, and ton-compiler gives me error

Isn't it Gram without comma, word that pushes 10^9 to the stack?

yes, but i need Gram,

Well, I see definition of Gram, as well. Have you included TonUtil.fif in your file?
If it still doesn't work, you could try to add instruction definition to your main.fif:
{ -1 { 1+ 2dup 8 * ufits } until
rot over 4 u, -rot 8 * u, } : Gram,

as I wrote above, the problem is that ton-compiler doesnt include it and compilation fails

im adding definition manually but the code wont be so readable

"TonUtil.fif" include

No, this works only to output. The problem is that toncompiler runs fift for checking and doesn't output anything if it fails

it works but its really a bad idea for readability