use ansi c declarations

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@15435 ec53bebd-3082-4978-b11e-865c3cabbd6b

cf/check-compile-et.m4

@@ -32,7 +32,7 @@ if ${COMPILE_ET} conftest_et.et >/dev/null 2>&1; then
 #include <com_err.h>
 #include <string.h>
 #include "conftest_et.h"
-int main(){
+int main(int argc, char **argv){
 #ifndef ERROR_TABLE_BASE_conf
 #error compile_et does not handle error_table N M
 #endif