+#if defined BB_BASENAME || defined BB_LN
+char *get_last_path_component(char *path)
+{
+ char *s=path+strlen(path)-1;
+
+ /* strip trailing slashes */
+ while (s && *s == '/') {
+ *s-- = '\0';
+ }
+
+ /* find last component */
+ s = strrchr(path, '/');
+ if (s==NULL) return path;
+ else return s+1;
+}
+#endif
+
+#if defined BB_GREP || defined BB_SED
+int bb_regcomp(regex_t *preg, const char *regex, int cflags)
+{
+ int ret;
+ if ((ret = regcomp(preg, regex, cflags)) != 0) {
+ int errmsgsz = regerror(ret, preg, NULL, 0);
+ char *errmsg = xmalloc(errmsgsz);
+ regerror(ret, preg, errmsg, errmsgsz);
+ errorMsg("bb_regcomp: %s\n", errmsg);
+ free(errmsg);
+ regfree(preg);
+ }
+ return ret;
+}
+#endif
+