--- a/configure
+++ b/configure
@@ -914,6 +914,7 @@
 #line 915 "configure"
 #include "confdefs.h"
 
+int
 main(){return(0);}
 EOF
 if { (eval echo configure:920: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then