diff --git a/contrib/win32/win32compat/kerberos.h b/contrib/win32/win32compat/kerberos.h
index e8a8a7d..4584f99 100644
--- a/contrib/win32/win32compat/kerberos.h
+++ b/contrib/win32/win32compat/kerberos.h
@@ -55,6 +55,7 @@ void UninitMitKerberos();
  * needed by ssh client here.
  */
  
+#ifdef __MINGW32__
 #define KFW_CALL OM_uint32 KRB5_CALLCONV
 
 typedef KFW_CALL (*gss_indicate_mechs_ptr)(OM_uint32 *, gss_OID_set *);
@@ -92,4 +93,44 @@ typedef void KRB5_CALLCONV (*krb5_free_principal_ptr)(krb5_context,
 typedef krb5_error_code KRB5_CALLCONV (*krb5_cc_destroy_ptr)(krb5_context, 
                                                                  krb5_ccache);
 
+#else
+
+typedef OM_uint32 _stdcall KFW_CALL;
+
+typedef  OM_uint32(KRB5_CALLCONV *gss_indicate_mechs_ptr)(OM_uint32 *, gss_OID_set *);
+typedef OM_uint32(KRB5_CALLCONV *gss_release_buffer_ptr)(OM_uint32 *, gss_buffer_t);
+
+typedef OM_uint32(KRB5_CALLCONV *gss_display_status_ptr)(OM_uint32 *, OM_uint32, int,
+	gss_OID, OM_uint32 *, gss_buffer_t);
+
+typedef OM_uint32(KRB5_CALLCONV *gss_delete_sec_context_ptr)(OM_uint32 *, gss_ctx_id_t *,
+	gss_buffer_t);
+
+typedef OM_uint32(KRB5_CALLCONV *gss_release_name_ptr)(OM_uint32 *, gss_name_t *);
+typedef OM_uint32(KRB5_CALLCONV *gss_release_cred_ptr)(OM_uint32 *, gss_cred_id_t *);
+
+typedef OM_uint32(KRB5_CALLCONV *gss_init_sec_context_ptr)(OM_uint32 *, gss_cred_id_t,
+	gss_ctx_id_t *, gss_name_t,
+	gss_OID, OM_uint32, OM_uint32,
+	gss_channel_bindings_t,
+	gss_buffer_t, gss_OID *,
+	gss_buffer_t, OM_uint32 *,
+	OM_uint32 *);
+
+typedef OM_uint32(KRB5_CALLCONV *gss_import_name_ptr)(OM_uint32 *, gss_buffer_t,
+	gss_OID, gss_name_t *);
+
+typedef OM_uint32(KRB5_CALLCONV *gss_get_mic_ptr)(OM_uint32 *, gss_ctx_id_t,
+	gss_qop_t, gss_buffer_t,
+	gss_buffer_t);
+
+typedef void (KRB5_CALLCONV *krb5_free_context_ptr)(krb5_context);
+
+typedef void (KRB5_CALLCONV *krb5_free_principal_ptr)(krb5_context,
+	krb5_principal);
+
+typedef krb5_error_code(KRB5_CALLCONV *krb5_cc_destroy_ptr)(krb5_context,
+	krb5_ccache);
+#endif
+
 #endif