Thread: dlopen claiming that a linked library does not exist

Originally Posted by manpage

RETURN VALUE
On success, dlopen() and dlmopen() return a non-NULL handle for the loaded object. On error (file could not be found, was not readable, had the wrong format, or caused errors during
loading), these functions return NULL.

On success, dlclose() returns 0; on error, it returns a nonzero value.

Errors from these functions can be diagnosed using dlerror(3).

Would dlerror() have told you that?