Add in grep -E support

diff --git a/findutils/grep.c b/findutils/grep.c
index 7afa817dad8e071bcb7e76284ce2551618baab7b..faecb58bcb18fca459bbfcbb69c830d19b75bf68 100644 (file)
--- a/findutils/grep.c
+++ b/findutils/grep.c
@@ -253,6 +253,9 @@ extern int grep_main(int argc, char **argv)
 #ifdef CONFIG_FEATURE_GREP_CONTEXT
 "A:B:C:"
 #endif
+#ifdef CONFIG_FEATURE_GREP_EGREP_ALIAS
+"E"
+#endif
 )) > 0) {
                switch (opt) {
                        case 'i':
@@ -285,6 +288,11 @@ extern int grep_main(int argc, char **argv)
                        case 'e':
                                add_regex(optarg);
                                break;
+#ifdef CONFIG_FEATURE_GREP_EGREP_ALIAS
+                       case 'E':
+                               reflags |= REG_EXTENDED;
+                               break;
+#endif
                        case 'f':
                                load_regexes_from_file(optarg);
                                break;