Restore CFLAGS after checking for __attribute__

configure

 #! /bin/sh
-# From configure.in Revision: 52363 .
+# From configure.in Revision: 52387 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.59 for python 2.6.
 #
@@ -4098,6 +4098,7 @@ echo "${ECHO_T}no" >&6
 
 fi
 rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+  CFLAGS=$save_CFLAGS
 fi
 
 # On some compilers, pthreads are available without further options

configure.in

@@ -903,6 +903,7 @@ then
   AC_MSG_RESULT(yes),
   AC_MSG_RESULT(no)
   )
+  CFLAGS=$save_CFLAGS
 fi
 
 # On some compilers, pthreads are available without further options