Fix SF bug #691793, Python 2.3a2 build fails on Tru64

Need to make sure that preprocessor directives start in first column.
This means we can't indent code which has preprocessor directives,
nor have a space between [ #include for example.
diff --git a/configure b/configure
index fd96ba8..efcada6 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in Revision: 1.389 .
+# From configure.in Revision: 1.390 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.53 for python 2.3.
 #
@@ -4746,7 +4746,7 @@
 cat >conftest.$ac_ext <<_ACEOF
 #line $LINENO "configure"
 #include "confdefs.h"
- #include <sys/types.h>
+#include <sys/types.h>
 #ifdef F77_DUMMY_MAIN
 #  ifdef __cplusplus
      extern "C"
@@ -4786,8 +4786,8 @@
 #line $LINENO "configure"
 #include "confdefs.h"
 
-    #define _OSF_SOURCE 1
-    #include <sys/types.h>
+#define _OSF_SOURCE 1
+#include <sys/types.h>
 
 #ifdef F77_DUMMY_MAIN
 #  ifdef __cplusplus
@@ -9159,7 +9159,7 @@
 #line $LINENO "configure"
 #include "confdefs.h"
 #include <stdio.h>
-  #include <pthread.h>
+#include <pthread.h>
   main()
   {
     FILE *f=fopen("conftestval", "w");
@@ -10128,10 +10128,11 @@
     cat >conftest.$ac_ext <<_ACEOF
 #line $LINENO "configure"
 #include "confdefs.h"
+
 #include <unistd.h>
-     #ifdef _POSIX_THREADS
-     yes
-     #endif
+#ifdef _POSIX_THREADS
+yes
+#endif
 
 _ACEOF
 if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
@@ -13189,13 +13190,13 @@
 #line $LINENO "configure"
 #include "confdefs.h"
 
-  #if defined(MAJOR_IN_MKDEV)
-  #include <sys/mkdev.h>
-  #elif defined(MAJOR_IN_SYSMACROS)
-  #include <sys/sysmacros.h>
-  #else
-  #include <sys/types.h>
-  #endif
+#if defined(MAJOR_IN_MKDEV)
+#include <sys/mkdev.h>
+#elif defined(MAJOR_IN_SYSMACROS)
+#include <sys/sysmacros.h>
+#else
+#include <sys/types.h>
+#endif
 
 #ifdef F77_DUMMY_MAIN
 #  ifdef __cplusplus