while compiling 3.0.9:

Compiling utils/smbpasswd.c
cc-1552 cc: WARNING File = utils/smbpasswd.c, Line = 432
  The variable "ret" is set but never used.

                                BOOL ret;
                                     ^

Looking at the code and surrounding code,

                        if(local_flags & LOCAL_ENABLE_USER) {
                                SAM_ACCOUNT *sampass = NULL;
                                BOOL ret;

                                pdb_init_sam(&sampass);
                                ret = pdb_getsampwnam(sampass, user_name);
                                if((sampass != False) && (pdb_get_lanman_passwd(sampass) == NULL)) {
                                        local_flags |= LOCAL_SET_PASSWORD;
                                }
                                pdb_free_sam(&sampass);
                        }

it looks like me like the IF statement should instead be:

    if((ret != False) && (pdb_get_lanman_passwd(sampass) == NULL))