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diff --git a/lib/mlibc/options/ansi/generic/complex/cimag.c b/lib/mlibc/options/ansi/generic/complex/cimag.c
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+++ b/lib/mlibc/options/ansi/generic/complex/cimag.c
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+/* $NetBSD: cimag.c,v 1.2 2010/09/15 16:11:29 christos Exp $ */
+
+/*
+ * Written by Matthias Drochner <drochner@NetBSD.org>.
+ * Public domain.
+ *
+ * imported and modified include for newlib 2010/10/03 
+ * Marco Atzeri <marco_atzeri@yahoo.it>
+ */
+
+/*
+FUNCTION
+        <<cimag>>, <<cimagf>>---imaginary part
+
+INDEX
+        cimag
+INDEX
+        cimagf
+
+ANSI_SYNOPSIS
+       #include <complex.h>
+       double cimag(double complex <[z]>);
+       float cimagf(float complex <[z]>);
+
+
+DESCRIPTION
+        These functions compute the imaginary part of <[z]>.
+
+        <<cimagf>> is identical to <<cimag>>, except that it performs
+        its calculations on <<floats complex>>.
+
+RETURNS
+        The cimag functions return the imaginary part value (as a real).
+
+PORTABILITY
+        <<cimag>> and <<cimagf>> are ISO C99
+
+QUICKREF
+        <<cimag>> and <<cimagf>> are ISO C99
+
+*/
+
+
+#include <complex.h>
+
+#include "fdlibm.h"
+
+double
+cimag(double complex z)
+{
+	double_complex w = { .z = z };
+
+	return (IMAG_PART(w));
+}