Index: configure.ac
--- configure.ac.orig
+++ configure.ac
@@ -866,7 +866,7 @@ AC_COMPILE_IFELSE(
 #include <sys/types.h>
 #include <sys/ipc.h>
 #include <sys/sem.h>
-int main(int argc, char *argv[])
+int main(int argc, char **argv[])
 {
    union semun a_semun;
 }
