(#23448) fix configure when run with dash

configure.ac

@@ -37,17 +37,7 @@ dnl By default, it is the subdirectory local, but the user
 dnl can override it by supplying --prefix=....
 AC_PREFIX_DEFAULT(`pwd -P`/local)
 
-dnl We don't really use automake, but configure needs aclocal and the
-dnl automake library files (like config.guess).
-AM_INIT_AUTOMAKE([1.9.6 foreign])
-
-# Allow "configure --disable-maintainer-mode" to disable timestamp checking
-AM_MAINTAINER_MODE([enable])
-
-dnl Make sure the path to our own m4 macros is always properly set 
-dnl and doesn't depend on how autoconf is called.
-AC_CONFIG_MACRO_DIR([m4])
-
+# The following needs to be run before AM_INIT_AUTOMAKE()
 #---------------------------------------------------------
 # We need to run this configure script with bash
 if test -z "$BASH_VERSION$CONFIG_SHELL"
@@ -72,6 +62,17 @@ then
     fi
 fi
 
+dnl We don't really use automake, but configure needs aclocal and the
+dnl automake library files (like config.guess).
+AM_INIT_AUTOMAKE([1.9.6 foreign])
+
+# Allow "configure --disable-maintainer-mode" to disable timestamp checking
+AM_MAINTAINER_MODE([enable])
+
+dnl Make sure the path to our own m4 macros is always properly set 
+dnl and doesn't depend on how autoconf is called.
+AC_CONFIG_MACRO_DIR([m4])
+
 #---------------------------------------------------------
 #
 # This is essentially the configure part of the old "install" file.