Check null objects

[guile-irrlicht.git] / src / wchar.h

diff --git a/src/wchar.h b/src/wchar.h
index d9697d22b1caabb875523c471f080845736866d3..0e086be785881a1fb9ff721662a5024146772d3f 100644 (file)
--- a/src/wchar.h
+++ b/src/wchar.h
@@ -19,8 +19,16 @@
    <http://www.gnu.org/licenses/>.
 */
 
+#ifndef __GUILE_IRRLICHT_WCHAR_H_INCLUDED__
+#define __GUILE_IRRLICHT_WCHAR_H_INCLUDED__
+
 #include <libguile.h>
 #include <wchar.h>
 
-wchar_t*
+SCM
+scm_from_wide_char_string (const wchar_t* wtext);
+
+const wchar_t*
 scm_to_wide_char_string (SCM text);
+
+#endif