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diff --git a/lib/mlibc/options/ansi/generic/complex/clog.c b/lib/mlibc/options/ansi/generic/complex/clog.c
deleted file mode 100644
index f7ad3d2..0000000
--- a/lib/mlibc/options/ansi/generic/complex/clog.c
+++ /dev/null
@@ -1,91 +0,0 @@
-/* $NetBSD: clog.c,v 1.1 2007/08/20 16:01:35 drochner Exp $ */
-
-/*-
- * Copyright (c) 2007 The NetBSD Foundation, Inc.
- * All rights reserved.
- *
- * This code is derived from software written by Stephen L. Moshier.
- * It is redistributed by the NetBSD Foundation by permission of the author.
- *
- * 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.
- *
- * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
- *
- * imported and modified include for newlib 2010/10/03 
- * Marco Atzeri <marco_atzeri@yahoo.it>
- */
-
-/*
-FUNCTION
-        <<clog>>, <<clogf>>---complex base-e logarithm
-
-INDEX
-        clog
-INDEX
-        clogf
-
-ANSI_SYNOPSIS
-       #include <complex.h>
-       double complex clog(double complex <[z]>);
-       float complex clogf(float complex <[z]>);
-
-
-DESCRIPTION
-        These functions compute the complex natural (base-<[e]>) logarithm 
-        of <[z]>, with a branch cut along the negative real axis. 
-
-        <<clogf>> is identical to <<clog>>, except that it performs
-        its calculations on <<floats complex>>.
-
-RETURNS
-        @ifnottex
-        The clog functions return the complex natural logarithm value, in 
-        the range of a strip mathematically unbounded along the real axis 
-        and in the interval [-i*pi , +i*pi] along the imaginary axis.
-        @end ifnottex
-        @tex
-        The clog functions return the complex natural logarithm value, in
-        the range of a strip mathematically unbounded along the real axis
-         and in the interval [$-i\pi$, $+i\pi$] along the imaginary axis.
-        @end tex
-
-PORTABILITY
-        <<clog>> and <<clogf>> are ISO C99
-
-QUICKREF
-        <<clog>> and <<clogf>> are ISO C99
-
-*/
-
-#include <complex.h>
-#include <math.h>
-
-double complex
-clog(double complex z)
-{
-	double complex w;
-	double p, rr;
-
-	rr = cabs(z);
-	p = log(rr);
-	rr = atan2(cimag(z), creal(z));
-	w = p + rr * I;
-	return w;
-}