diff --git a/src/bin/engine_direct3d.cpp b/src/bin/engine_direct3d.cpp
index 6304781..efcafbc 100644
--- a/src/bin/engine_direct3d.cpp
+++ b/src/bin/engine_direct3d.cpp
@@ -174,6 +174,7 @@ engine_direct3d_args(int argc, char **argv)
    HDC                        dc;
    MSG                        msg;
    Evas_Engine_Info_Direct3D *einfo;
+   DWORD                      style;
    int                        depth;
    int                        i;
    int                        ok = 0;
diff --git a/src/bin/main.h b/src/bin/main.h
index 03c41b7..cf6143e 100644
--- a/src/bin/main.h
+++ b/src/bin/main.h
@@ -64,6 +64,11 @@
 #include "engine_software_16_wince.h"
 #endif
 
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
 #include "ui.h"
 #include "about.h"
 
@@ -80,6 +85,10 @@ const char  *build_path(const char *filename);
 void         engine_loop(void);
 int          engine_abort(void);
 
+#ifdef __cplusplus
+}
+#endif
+
 #define KEY_STD \
    if ((!strcmp(key, "Escape")) || (!strcmp(key, "q")) || (!strcmp(key, "Q")) || (!strcmp(key, "Return"))) \
        { \