--- a/configure.ac	2005-12-27 00:12:03.000000000 +0100
+++ b/configure.ac	2026-10-19 17:19:14.437096614 +0200
@@ -70,14 +70,14 @@ fi
 
 AC_MSG_CHECKING([for usability of initstate_r])
 
-AC_TRY_RUN([#include <stdlib.h>
+AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdlib.h>
 int main()
 {
   static struct random_data rand_data;
   static char rand_state[256];
   initstate_r(0, rand_state, sizeof(rand_state), &rand_data);
   exit(0);
-}], initstate_r_works=yes,, ])
+}]])], [initstate_r_works=yes], [], [initstate_r_works=yes])
 
 if test "$initstate_r_works" != "yes"; then
     AC_MSG_RESULT([no])