diff --git a/libm/src/e_ldexpf.c b/libm/src/e_ldexpf.c
new file mode 100644
index 0000000..86297fc
--- /dev/null
+++ b/libm/src/e_ldexpf.c
@@ -0,0 +1,22 @@
+/* e_scalbf.c -- float version of e_scalb.c.
+ * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
+ */
+
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunPro, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice
+ * is preserved.
+ * ====================================================
+ */
+#include "math.h"
+#include "math_private.h"
+
+float
+__ieee754_ldexpf(float x, int fn)
+{
+    return __ieee754_scalbf(x,fn);
+}
diff --git a/libm/src/math_private.h b/libm/src/math_private.h
index 13bcd3a..5f6e088 100644
--- a/libm/src/math_private.h
+++ b/libm/src/math_private.h
@@ -254,6 +254,7 @@
 #define	__ieee754_ynf	ynf
 #define	__ieee754_remainderf remainderf
 #define	__ieee754_scalbf scalbf
+#define __ieee754_ldexpf ldexpf
 
 /* fdlibm kernel function */
 int	__ieee754_rem_pio2(double,double*);