When I check my compiled vala executable with "file" command I get
ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.32, BuildID[sha1]=ed63a8866b14321403b0eec4232a518613014026, not stripped
It says not stripped? How do you strip?
*EDIT*
Found command "strip"