--- postgresql-6.3.1.actual/src/backend/utils/adt/float.c	Wed Feb 25 22:37:07 1998
+++ postgresql-6.3.1/src/backend/utils/adt/float.c	Fri Apr 10 15:21:11 1998
@@ -132,7 +132,7 @@
  * until the distributions are updated.
  *								--djm 12/16/96
  */
-#if defined(linuxalpha) && !defined(UNSAFE_FLOATS)
+#if ( defined(linux) && defined(__alpha__) ) && !defined(UNSAFE_FLOATS)
 #define UNSAFE_FLOATS
 #endif