diff -up gromacs-4.5.4/scripts/GMXRC.bash.in.orig gromacs-4.5.4/scripts/GMXRC.bash.in
--- gromacs-4.5.4/scripts/GMXRC.bash.in.orig	2011-03-15 14:44:30.000000000 +0200
+++ gromacs-4.5.4/scripts/GMXRC.bash.in	2011-03-23 15:23:47.460843630 +0200
@@ -1,3 +1,4 @@
+#!/bin/bash
 # bash configuration file for Gromacs
 # First we remove old gromacs stuff from the paths
 # by selecting everything else.
diff -up gromacs-4.5.4/scripts/GMXRC.csh.in.orig gromacs-4.5.4/scripts/GMXRC.csh.in
--- gromacs-4.5.4/scripts/GMXRC.csh.in.orig	2011-03-15 14:44:30.000000000 +0200
+++ gromacs-4.5.4/scripts/GMXRC.csh.in	2011-03-23 15:23:24.515816712 +0200
@@ -1,3 +1,4 @@
+#!/bin/csh
 # csh/tcsh configuration file for Gromacs.
 # First we remove previous Gromacs stuff from paths 
 # by selecting everything else. 
diff -up gromacs-4.5.4/scripts/GMXRC.in.orig gromacs-4.5.4/scripts/GMXRC.in
--- gromacs-4.5.4/scripts/GMXRC.in.orig	2011-03-15 14:44:30.000000000 +0200
+++ gromacs-4.5.4/scripts/GMXRC.in	2011-03-23 15:23:58.499338216 +0200
@@ -1,3 +1,4 @@
+#!/bin/sh
 # This is a convenience script to determine which
 # type of shell you have, and then run GMXRC.[csh|bash|zsh]
 # from the Gromacs binary directory.
diff -up gromacs-4.5.4/scripts/GMXRC.zsh.in.orig gromacs-4.5.4/scripts/GMXRC.zsh.in
--- gromacs-4.5.4/scripts/GMXRC.zsh.in.orig	2011-03-15 14:44:30.000000000 +0200
+++ gromacs-4.5.4/scripts/GMXRC.zsh.in	2011-03-23 15:24:06.396692029 +0200
@@ -1,3 +1,4 @@
+#!/bin/zsh
 # zsh configuration file for Gromacs
 # First we remove old gromacs stuff from the paths
 # by selecting everything else.