--- config.guess.bak	2009-04-01 12:07:34.000000000 +0200
+++ config.guess	2009-04-01 12:11:37.000000000 +0200
@@ -274,7 +274,8 @@
   # a function descriptor, not actual code.  But this doesn't matter since
   # AIX doesn't allow mfpvr anyway.
   #
-  cat >$dummy.c <<\EOF
+  if test "`uname`" != Darwin; then
+    cat >$dummy.c <<\EOF
 #include <stdio.h>
 struct {
   int   n;  /* force 4-byte alignment */
@@ -312,15 +313,16 @@
   return 0;
 }
 EOF
-  if ($CC_FOR_BUILD $dummy.c -o $dummy) >/dev/null 2>&1; then
-    # This style construct is needed on AIX 4.3 to suppress the SIGILL error
-    # from (*fun)().  Using $SHELL -c ./$dummy 2>/dev/null doesn't work.
-    { x=`./$dummy`; } 2>/dev/null
-    if test -n "$x"; then
-      exact_cpu=$x
+    if ($CC_FOR_BUILD $dummy.c -o $dummy) >/dev/null 2>&1; then
+      # This style construct is needed on AIX 4.3 to suppress the SIGILL error
+      # from (*fun)().  Using $SHELL -c ./$dummy 2>/dev/null doesn't work.
+      { x=`./$dummy`; } 2>/dev/null
+      if test -n "$x"; then
+        exact_cpu=$x
+      fi
     fi
+    rm -f $dummy.c $dummy.o $dummy $dummy.core
   fi
-  rm -f $dummy.c $dummy.o $dummy $dummy.core
 
   # Grep the linux kernel /proc/cpuinfo pseudo-file.
   # Anything unrecognised is ignored, since of course we mustn't spit out