[Slackbuilds-users] icecat 38.8.0 crashes

[Franzen]

> Please, for the less aware like me, what does the -O2 do and what is
> the difference to -Os  ?

Have a look at https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html

-Os
Optimize for size. -Os enables all -O2 optimizations that do not 
typically
increase code size. It also performs further optimizations designed to 
reduce
code size.