We can't run test programs when cross-compiling. Just fill in the correct
answer.
--- Blogbench-d000aaf9390100bb3024e6b4aed9d945256259d5/configure.ac.old	2020-02-18 18:08:18.054966428 +0900
+++ Blogbench-d000aaf9390100bb3024e6b4aed9d945256259d5/configure.ac	2020-02-18 18:14:39.928334344 +0900
@@ -107,30 +107,7 @@
 AC_CHECK_FUNCS(sync)
 
 AC_MSG_CHECKING(whether snprintf is C99 conformant)
-AC_RUN_IFELSE([AC_LANG_SOURCE([[
-#include <stdio.h>
-#ifdef STDC_HEADERS
-# include <stdlib.h>
-# include <stddef.h>
-#else
-# if HAVE_STDLIB_H
-#  include <stdlib.h>
-# endif
-#endif
-#ifdef HAVE_UNISTD_H
-# include <unistd.h>
-#endif
-
-int main(void)
-{
-    char buf[4];
-    
-    (void) fprintf(fopen("conftestval", "w"), "%d\n",
-        (int) snprintf(buf, sizeof buf, "12345678"));
-    return 0;
-}
-]])],[CONF_SNPRINTF_TYPE=`cat conftestval`
-],[],[])
+CONF_SNPRINTF_TYPE="8"
 AC_MSG_RESULT(done)
 if test "x$CONF_SNPRINTF_TYPE" = "x" ; then
   AC_MSG_WARN(your operating system doesn't implement snprintf)