Die if aclocal, autoconf or automake fail.

git-svn-id: https://mosesdecoder.svn.sourceforge.net/svnroot/mosesdecoder/trunk@1213 1f5c12ca-751b-0410-a591-d2e778427230

irstlm/regenerate-makefiles.sh

@@ -1,11 +1,16 @@
-#!/bin/sh
+#!/bin/bash
+
+function die () {
+  echo "$@" >&2
+  exit 1
+}
 
 echo "Calling aclocal..."
-aclocal
+aclocal || die "aclocal failed"
 echo "Calling autoconf..."
-autoconf
+autoconf || die "autoconf failed"
 echo "Calling automake..."
-automake
+automake || die "automake failed"
 
 echo
 echo "You should now be able to configure and build:"