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diff --git a/modules/io/includes/getenvc.h b/modules/io/includes/getenvc.h
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+++ b/modules/io/includes/getenvc.h
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+/*
+ * Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ * Copyright (C) 2007 - INRIA - Sylvestre LEDRU
+ * Copyright (C) 2008 - INRIA - Allan CORNET
+ *
+ * This file must be used under the terms of the CeCILL.
+ * This source file is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution.  The terms
+ * are also available at
+ * http://www.cecill.info/licences/Licence_CeCILL_V2.1-en.txt
+ *
+ */
+
+#ifndef __GETENVC_H__
+#define __GETENVC_H__
+
+#include "dynlib_io.h"
+#include "machine.h"
+
+/**
+ * Retrieve a system variable
+ * @param[out] ierr the error code
+ * @param[in] var the name of the variable
+ * @param[out] buf the value of the variable
+ * @param[out] buflen  the length of the variable
+ * @param[in] iflag
+ */
+IO_IMPEXP void C2F(getenvc)(int *ierr, char *var, char *buf, int *buflen, int *iflag);
+
+/**
+* Searches for a file using environment paths
+* @param[in] filename
+* @param[in] environment variable where we search
+* @return path found
+*/
+IO_IMPEXP char *searchEnv(const char *name, const char *env_var);
+
+
+#endif /* __GETENVC_H__ */