*** pgsql/src/backend/utils/adt/float.c	2008/01/01 19:45:52	1.153
--- pgsql/src/backend/utils/adt/float.c	2009/03/04 22:08:28	1.153.2.1
***************
*** 8,14 ****
   *
   *
   * IDENTIFICATION
!  *	  $PostgreSQL: pgsql/src/backend/utils/adt/float.c,v 1.152 2007/11/15 21:14:39 momjian Exp $
   *
   *-------------------------------------------------------------------------
   */
--- 8,14 ----
   *
   *
   * IDENTIFICATION
!  *	  $PostgreSQL: pgsql/src/backend/utils/adt/float.c,v 1.153 2008/01/01 19:45:52 momjian Exp $
   *
   *-------------------------------------------------------------------------
   */
*************** static int	float4_cmp_internal(float4 a,
*** 71,76 ****
--- 71,85 ----
  static int	float8_cmp_internal(float8 a, float8 b);
  
  #ifndef HAVE_CBRT
+ /*
+  * Some machines (in particular, some versions of AIX) have an extern
+  * declaration for cbrt() in <math.h> but fail to provide the actual
+  * function, which causes configure to not set HAVE_CBRT.  Furthermore,
+  * their compilers spit up at the mismatch between extern declaration
+  * and static definition.  We work around that here by the expedient
+  * of a #define to make the actual name of the static function different.
+  */
+ #define cbrt my_cbrt
  static double cbrt(double x);
  #endif   /* HAVE_CBRT */