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-rw-r--r--sysdeps/libm-ieee754/s_exp2f.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/sysdeps/libm-ieee754/s_exp2f.c b/sysdeps/libm-ieee754/s_exp2f.c
index 92c1f16c5a..05e79c9f5a 100644
--- a/sysdeps/libm-ieee754/s_exp2f.c
+++ b/sysdeps/libm-ieee754/s_exp2f.c
@@ -1,5 +1,5 @@
 /* Single-precision floating point 2^x.
-   Copyright (C) 1997 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Geoffrey Keating <geoffk@ozemail.com.au>
 
@@ -55,7 +55,10 @@ __ieee754_exp2f (float x)
       fenv_t oldenv;
 
       feholdexcept (&oldenv);
+#ifdef FE_TONEAREST
+      /* If we don't have this, it's too bad.  */
       fesetround (FE_TONEAREST);
+#endif
 
       /* 1. Argument reduction.
 	 Choose integers ex, -128 <= t < 128, and some real