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diff --git a/gnuradio-runtime/include/gnuradio/random.h b/gnuradio-runtime/include/gnuradio/random.h
new file mode 100644
index 0000000000..e01fcb7be7
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+++ b/gnuradio-runtime/include/gnuradio/random.h
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+/* -*- c++ -*- */
+/*
+ * Copyright 2002 Free Software Foundation, Inc.
+ *
+ * This file is part of GNU Radio
+ *
+ * GNU Radio 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 3, or (at your option)
+ * any later version.
+ *
+ * GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef INCLUDED_GR_RANDOM_H
+#define INCLUDED_GR_RANDOM_H
+
+#include <gnuradio/api.h>
+#include <gnuradio/gr_complex.h>
+
+// While rand(3) specifies RAND_MAX, random(3) says that the output
+// ranges from 0 to 2^31-1 but does not specify a macro to denote
+// this.  We define RANDOM_MAX for cleanliness.  We must omit the
+// definition for systems that have made the same choice.  (Note that
+// random(3) is from 4.2BSD, and not specified by POSIX.)
+
+#ifndef RANDOM_MAX
+static const int RANDOM_MAX = 2147483647; // 2^31-1
+#endif /* RANDOM_MAX */
+
+#include <stdlib.h>
+
+namespace gr {
+
+  /*!
+   * \brief pseudo random number generator
+   * \ingroup math_blk
+   */
+  class GR_RUNTIME_API random
+  {
+  protected:
+    static const int NTAB = 32;
+    long d_seed;
+    long d_iy;
+    long d_iv[NTAB];
+    int	d_iset;
+    float d_gset;
+
+  public:
+    random(long seed=3021);
+
+    void reseed(long seed);
+
+    /*!
+     * \brief uniform random deviate in the range [0.0, 1.0)
+     */
+    float ran1();
+
+    /*!
+     * \brief normally distributed deviate with zero mean and variance 1
+     */
+    float gasdev();
+
+    float laplacian();
+    float impulse(float factor);
+    float rayleigh();
+    gr_complex rayleigh_complex();
+  };
+
+} /* namespace gr */
+
+#endif /* INCLUDED_GR_RANDOM_H */
+