From 999623e9736d21177d1f437679b334e0347a6e0f Mon Sep 17 00:00:00 2001
From: Matt Kraai
Date: Mon, 29 Oct 2001 15:49:03 +0000
Subject: Use extended regular expressions when invoked as egrep (noted and
 initial patch by Charles Steinkuehler).

---
 findutils/config.in | 3 +++
 findutils/grep.c    | 5 +++++
 2 files changed, 8 insertions(+)

(limited to 'findutils')

diff --git a/findutils/config.in b/findutils/config.in
index 8e41bd5..21e3680 100644
--- a/findutils/config.in
+++ b/findutils/config.in
@@ -8,6 +8,9 @@ comment 'Finding Utilities'
 
 bool 'find'	    CONFIG_FIND
 bool 'grep'	    CONFIG_GREP
+if [ "$CONFIG_GREP" = "y" ] ; then
+	bool ' egrep alias' CONFIG_FEATURE_GREP_EGREP_ALIAS
+fi
 bool 'which'	    CONFIG_WHICH
 bool 'xargs'	    CONFIG_XARGS
 endmenu
diff --git a/findutils/grep.c b/findutils/grep.c
index a97a8bb..7cd8196 100644
--- a/findutils/grep.c
+++ b/findutils/grep.c
@@ -243,6 +243,11 @@ extern int grep_main(int argc, char **argv)
 		perror_msg_and_die("atexit");
 #endif
 
+#ifdef CONFIG_FEATURE_GREP_EGREP_ALIAS
+	if (strcmp (basename (argv[0]), "egrep") == 0)
+		reflags |= REG_ICASE;
+#endif
+
 	/* do normal option parsing */
 	while ((opt = getopt(argc, argv, "iHhlnqvsce:f:"
 #ifdef CONFIG_FEATURE_GREP_CONTEXT
-- 
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