How to use .a static library

I want to use procompile library (.a file ),i followed
other’s ways ,but it does not work.
the .ini
the terminal

the path

the project catalog

These filenames are already fine, so just do

build_flags =

If that still fails you might have problems with C linkage / name mangling, make sure you

extern "C" {
  /* include RADER library header file inside this block, whatever the name is */
  #include <libaccooner.h>