diff --git a/src/libCom/osi/epicsMath.cpp b/src/libCom/osi/epicsMath.cpp
new file mode 100644
index 000000000..bfeda3412
--- /dev/null
+++ b/src/libCom/osi/epicsMath.cpp
@@ -0,0 +1,34 @@
+/*************************************************************************\
+* Copyright (c) 2002 The University of Chicago, as Operator of Argonne
+*     National Laboratory.
+* Copyright (c) 2002 The Regents of the University of California, as
+*     Operator of Los Alamos National Laboratory.
+* EPICS BASE Versions 3.13.7
+* and higher are distributed subject to a Software License Agreement found
+* in file LICENSE that is included with this distribution. 
+\*************************************************************************/
+/* epicsMath.cpp */
+
+#include <epicsMath.h>
+#include <shareLib.h>
+
+static float makeNAN ( void )
+{
+    float a,b,c;
+    a = 0.0;
+    b = 0.0;
+    c = a / b;
+    return c;
+}
+
+static float makeINF ( void )
+{
+    float a,b,c;
+    a = 1.0;
+    b = 0.0;
+    c = a / b;
+    return c;
+}
+
+epicsShareDef float epicsNAN = makeNAN();
+epicsShareDef float epicsINF = makeINF();