Fix parsing of --config=... command line option

Before, --config=... could not be combined with anything else on the command line

ChangeLog

@@ -5,6 +5,9 @@
 # Distributed under the GPL v2
 # $Id$
 
+  12 Aug 2012; Sebastian Pipping <sping@gentoo.org> genkernel:
+  Fix parsing of --config=... command line option
+
   27 Jul 2012; Sebastian Pipping <sping@gentoo.org> defaults/initrd.scripts,
   genkernel:
   Bump version to 3.4.40

genkernel

@@ -25,11 +25,12 @@ parse_opt() {
 
 # We don't know where our config is, so we check for it, and default to using
 # /etc/genkernel.conf if nobody has specified one.
-case "$*" in
-	--config=*)
-		CMD_GK_CONFIG=`parse_opt "$*"`
-	;;
-esac
+
+# NOTE: We are look for --config=... in a way that doesn't modify $@ since we access that again, later
+for (( i=1; i<=$# ; i=i+1 )); do
+	eval arg="\$$i"
+	[[ "${arg}" = --config=* ]] && CMD_GK_CONFIG=`parse_opt "${arg}"`
+done
 
 # Pull in our configuration
 _GENKERNEL_CONF=${CMD_GK_CONFIG:-/etc/genkernel.conf}