+
+ if test $ac_cv_func_futimens = no && test $ac_cv_func_futimesat = yes; then
+ dnl FreeBSD 8.0-rc2 mishandles futimesat(fd,NULL,time). It is not
+ dnl standardized, but Solaris implemented it first and uses it as
+ dnl its only means to set fd time.
+ AC_CACHE_CHECK([whether futimesat handles NULL file],
+ [gl_cv_func_futimesat_works],
+ [touch conftest.file
+ AC_RUN_IFELSE([AC_LANG_PROGRAM([[
+#include <stddef.h>
+#include <sys/times.h>
+]], [[ int fd = open ("conftest.file", O_RDWR);
+ if (fd < 0) return 1;
+ if (futimesat (fd, NULL, NULL)) return 2;
+ ]])],
+ [gl_cv_func_futimesat_works=yes],
+ [gl_cv_func_futimesat_works=no],
+ [gl_cv_func_futimesat_works="guessing no"])
+ rm -f conftest.file])
+ if test "$gl_cv_func_futimesat_works" != yes; then
+ AC_DEFINE([FUTIMESAT_NULL_BUG], [1],
+ [Define to 1 if futimesat mishandles a NULL file name.])
+ fi
+ fi