--- a/configure.ac
+++ b/configure.ac
@@ -824,25 +824,8 @@ dnl ************************************
 
 dnl Check for %qu format (FreeBSD 4.x)
 dnl FreeBSD 4.x does not support %llu
-AC_MSG_CHECKING(for long long format)
-AC_TRY_RUN(
-[
-#include <sys/types.h>
-int main()
-{
-        uint64_t i;
-
-        sscanf("200000000010020", "%qu", &i);
-
-        if (i == 200000000010020) return 0;
-        else return -1;
-}
-],
-AC_DEFINE(HAVE_LONG_LONG_QU, 1 ,[Define to 1 if format '%qu' exists.])
-AC_MSG_RESULT(yes),
-AC_MSG_RESULT(no))
-
 dnl option -rdynamic is needed for readable backtraces
+
 AC_MSG_CHECKING(for -rdynamic linking option)
 saved_LDFLAGS="$LDFLAGS"
 LDFLAGS="-rdynamic $LDFLAGS"
