search_library_path
static char *search_library_path(const char *, const char *);
(pathname = search_library_path(name, refobj->rpath)) != NULL) ||
(pathname = search_library_path(name, obj_main->rpath)) != NULL) ||
(pathname = search_library_path(name, ld_library_path)) != NULL ||
(pathname = search_library_path(name, refobj->runpath)) != NULL) ||
(pathname = search_library_path(name, gethints(nodeflib))) != NULL ||
(pathname = search_library_path(name, STANDARD_LIBRARY_PATH)) != NULL))