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diff --git a/src/libs/softfloat-3e/source/s_approxRecip32_1.c b/src/libs/softfloat-3e/source/s_approxRecip32_1.c
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+
+/*============================================================================
+
+This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
+Package, Release 3e, by John R. Hauser.
+
+Copyright 2011, 2012, 2013, 2014, 2015, 2016 The Regents of the University of
+California.  All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice,
+    this list of conditions, and the following disclaimer.
+
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+    this list of conditions, and the following disclaimer in the documentation
+    and/or other materials provided with the distribution.
+
+ 3. Neither the name of the University nor the names of its contributors may
+    be used to endorse or promote products derived from this software without
+    specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
+EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
+DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+=============================================================================*/
+
+#include <stdint.h>
+#include "platform.h"
+
+#ifndef softfloat_approxRecip32_1
+uint32_t softfloat_approxRecip32_1( uint32_t a ); /* VBox: Missing prototype */
+
+extern const uint16_t softfloat_approxRecip_1k0s[16];
+extern const uint16_t softfloat_approxRecip_1k1s[16];
+
+uint32_t softfloat_approxRecip32_1( uint32_t a )
+{
+    int index;
+    uint16_t eps, r0;
+    uint32_t sigma0;
+    uint_fast32_t r;
+    uint32_t sqrSigma0;
+
+    index = a>>27 & 0xF;
+    eps = (uint16_t) (a>>11);
+    r0 = softfloat_approxRecip_1k0s[index]
+             - ((softfloat_approxRecip_1k1s[index] * (uint_fast32_t) eps)>>20);
+    sigma0 = ~(uint_fast32_t) ((r0 * (uint_fast64_t) a)>>7);
+    r = ((uint_fast32_t) r0<<16) + ((r0 * (uint_fast64_t) sigma0)>>24);
+    sqrSigma0 = ((uint_fast64_t) sigma0 * sigma0)>>32;
+    r += ((uint32_t) r * (uint_fast64_t) sqrSigma0)>>48;
+    return r;
+
+}
+
+#endif
+