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
308bdcdb48b48d4f
the terminal


the path

the project catalog

These filenames are already fine, so just do

build_flags =
  -ID:/project/RADER/include
  -LD:/project/RADER/lib/esp32c3
  -lacc_detector_distance
  -lacc_detector_presence
  -lacc_rf_certification_test
  -laccconeer

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>
}