new file mode 100644
--- /dev/null
+++ b/packages/language/c/libm/current/src/float/portable-api/sf_ldexp.c
@@ -0,0 +1,109 @@
+//===========================================================================
+//
+//      sf_ldexp.c
+//
+//      Part of the standard mathematical function library
+//
+//===========================================================================
+// ####ECOSGPLCOPYRIGHTBEGIN####
+// -------------------------------------------
+// This file is part of eCos, the Embedded Configurable Operating System.
+// Copyright (C) 2012 Free Software Foundation, Inc.
+//
+// eCos is free software; you can redistribute it and/or modify it under
+// the terms of the GNU General Public License as published by the Free
+// Software Foundation; either version 2 or (at your option) any later
+// version.
+//
+// eCos is distributed in the hope that it will be useful, but WITHOUT
+// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+// for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with eCos; if not, write to the Free Software Foundation, Inc.,
+// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+//
+// As a special exception, if other files instantiate templates or use
+// macros or inline functions from this file, or you compile this file
+// and link it with other works to produce a work based on this file,
+// this file does not by itself cause the resulting work to be covered by
+// the GNU General Public License. However the source code for this file
+// must still be made available in accordance with section (3) of the GNU
+// General Public License v2.
+//
+// This exception does not invalidate any other reasons why a work based
+// on this file might be covered by the GNU General Public License.
+// -------------------------------------------
+// ####ECOSGPLCOPYRIGHTEND####
+//===========================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s):
+// Contributors: visar, ilijak
+// Date:        2012-03-08
+// Purpose:
+// Description:
+// Usage:
+//
+//####DESCRIPTIONEND####
+//
+//===========================================================================
+
+// CONFIGURATION
+
+#include <pkgconf/libm.h>   // Configuration header
+
+// Include the Math library?
+#ifdef CYGPKG_LIBM
+
+// Derived from code with the following copyright
+
+
+/* sf_ldexp.c -- float version of s_ldexp.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 "mathincl/fdlibm.h"
+#include <errno.h>
+
+#ifdef __STDC__
+	float ldexpf(float value, int exp)
+#else
+	float ldexpf(value, exp)
+	float value; int exp;
+#endif
+{
+	float z;
+
+    z = scalbnf(value,exp);
+
+#ifndef CYGSEM_LIBM_COMPAT_IEEE_ONLY
+    if(cyg_libm_get_compat_mode() == CYGNUM_LIBM_COMPAT_IEEE) return z;
+    if(!(finitef(z)||isnanf(z))&&finitef(value)) {
+        return __kernel_standard(value,(float)exp,43); /* ldexp overflow */
+    }
+    if(z==0.0&&z!=value) {
+        return __kernel_standard(value,(float)exp,44); /* ldexp underflow */
+    }
+#endif
+
+    return z;
+}
+
+
+#endif // ifdef CYGPKG_LIBM
+
+// EOF sf_ldexp.c