X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=tests%2Ftest-floorf2.c;h=b26a508351d875fb38177d05ebdce6e318fff3e2;hb=880d107;hp=d6a22ee25a40c521354b069b5eebf1ed8c36b543;hpb=987e5651e8d1c5aa933c9ce88562806af4093702;p=gnulib.git

diff --git a/tests/test-floorf2.c b/tests/test-floorf2.c
index d6a22ee25..b26a50835 100644
--- a/tests/test-floorf2.c
+++ b/tests/test-floorf2.c
@@ -1,5 +1,5 @@
 /* Test of rounding towards negative infinity.
-   Copyright (C) 2007-2009 Free Software Foundation, Inc.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -16,6 +16,9 @@
 
 /* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
 
+/* When this test fails on some platform, build it together with the gnulib
+   module 'fprintf-posix' for optimal debugging output.  */
+
 #include <config.h>
 
 #include <math.h>
@@ -119,8 +122,10 @@ check (float x)
       return 0;
     else
       {
+#if GNULIB_TEST_FPRINTF_POSIX
         fprintf (stderr, "floorf %g(%a) = %g(%a) or %g(%a)?\n",
                  x, x, reference, reference, result, result);
+#endif
         return 1;
       }
   }