+echo $ac_n "checking for long long ... $ac_c"
+AC_TRY_RUN([#include <stdio.h>
+main() { long long x = 1000000; x *= x; exit(((x/1000000) == 1000000)? 0: 1); }],
+echo yes;AC_DEFINE(HAVE_LONGLONG),
+echo no)
+
+echo $ac_n "checking for off64_t ... $ac_c"
+AC_TRY_RUN([#include <stdio.h>
+#include <sys/stat.h>
+main() { struct stat64 st; off64_t s; exit((lstat64("/dev/null", &st)==0)?0:1); }],
+echo yes;AC_DEFINE(HAVE_LONGLONG),
+echo no)
+
+echo $ac_n "checking for utimbuf ... $ac_c"
+AC_TRY_COMPILE([#include <sys/types.h>
+#include <utime.h>],
+[struct utimbuf tbuf; tbuf.actime = 0; tbuf.modtime = 1; return utime("foo.c",&tbuf);],
+echo yes;AC_DEFINE(HAVE_UTIMBUF),
+echo no)
+
+AC_OUTPUT(Makefile lib/dummy)