updated for version 7.3.627 Problem: When using the "n" flag with the ":s" command a \= substitution will not be evaluated. Solution: Do perform the evaluation, so that a function can be invoked at every matching position without changing the text. (Christian Brabandt)

#! /bin/sh
#
# which.sh -- find where an executable is located.  It's here because the
# "which" command is not supported everywhere.  Used by Makefile.

IFS=":"
for ac_dir in $PATH; do
	if test -f "$ac_dir/$1"; then
		echo "$ac_dir/$1"
		break
	fi
done