Comment by ysfr

Yes. Or if it's using dynamic libraries and not compiled static, you can use LD_PRELOAD and overwrite ptrace() to do nothing. You don't have to patch anything then, which might be easier.

   int ptrace(int request, int pid, void *addr, void *data) {
       return 0;
   }

And compile it:

  gcc -shared myptrace.c -o myptrace.so

Afterwards you can eiher

  LD_PRELOAD=./mytrace.so ./thebinary     # shell
  ltrace -S -l ./mytrace.so ./thebinary   # strace in shell

or for gdb

  set environment LD_PRELOAD=./mytrace.so