correct default docs

configure

 #! /bin/sh
-# From configure.in Revision: 81004 .
+# From configure.in Revision: 81077 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.65 for python 2.7.
 #
@@ -1388,7 +1388,7 @@ Optional Features:
   --enable-big-digits[=BITS]
                           use big digits for Python longs [[BITS=30]]
   --enable-unicode[=ucs[24]]
-                          Enable Unicode strings (default is yes)
+                          Enable Unicode strings (default is ucs2)
 
 Optional Packages:
   --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
@@ -1934,11 +1934,11 @@ else
        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $ac_includes_default
-	     enum { N = $2 / 2 - 1 };
 int
 main ()
 {
-static int test_array [1 - 2 * !(0 < ($ac_type) ((((($ac_type) 1 << N) << N) - 1) * 2 + 1))];
+static int test_array [1 - 2 * !(enum { N = $2 / 2 - 1 };
+	     0 < ($ac_type) ((((($ac_type) 1 << N) << N) - 1) * 2 + 1))];
 test_array [0] = 0
 
   ;
@@ -1949,11 +1949,11 @@ if ac_fn_c_try_compile "$LINENO"; then :
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 $ac_includes_default
-	        enum { N = $2 / 2 - 1 };
 int
 main ()
 {
-static int test_array [1 - 2 * !(($ac_type) ((((($ac_type) 1 << N) << N) - 1) * 2 + 1)
+static int test_array [1 - 2 * !(enum { N = $2 / 2 - 1 };
+		($ac_type) ((((($ac_type) 1 << N) << N) - 1) * 2 + 1)
 		 < ($ac_type) ((((($ac_type) 1 << N) << N) - 1) * 2 + 2))];
 test_array [0] = 0
 

configure.in

@@ -3714,7 +3714,7 @@ fi
 AC_MSG_CHECKING(what type to use for unicode)
 dnl quadrigraphs "@<:@" and "@:>@" produce "[" and "]" in the output
 AC_ARG_ENABLE(unicode, 
-              AS_HELP_STRING([--enable-unicode@<:@=ucs@<:@24@:>@@:>@], [Enable Unicode strings (default is yes)]),
+              AS_HELP_STRING([--enable-unicode@<:@=ucs@<:@24@:>@@:>@], [Enable Unicode strings (default is ucs2)]),
               [],
               [enable_unicode=yes])