From e2a305bff2be376f6dd29e52a1d32636e0c22706 Mon Sep 17 00:00:00 2001
From: Jim Meyering <meyering@fb.com>
Date: Mon, 12 May 2014 10:33:09 -0700
Subject: [PATCH] egrep, fgrep: make wrappers portable to non-POSIX shells

* src/egrep.sh (grep): Use sed in a subshell in place of the
POSIX sh construct, ${0%/*}.  The latter is not portable to
Solaris 10.  Reported by Paul Eggert in http://debbugs.gnu.org/17471
---
 src/egrep.sh | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/egrep.sh b/src/egrep.sh
index f1b4146..0a374aa 100644
--- a/src/egrep.sh
+++ b/src/egrep.sh
@@ -2,9 +2,10 @@
 grep=grep
 case $0 in
   */*)
-    if test -x "${0%/*}/@grep@"; then
-      PATH=${0%/*}:$PATH
-      grep=@grep@
+    dirname=`echo "$0"|sed 's,//*[^/]*$,,'`
+    if test -x "$dirname"/'@grep@'; then
+      PATH="$dirname:$PATH"
+      grep='@grep@'
     fi;;
 esac
 exec $grep @option@ "$@"
-- 
2.0.0.rc3