+# Define USE_ST_TIMESPEC=YesPlease when stat.st_mtimespec.tv_nsec exists.
+# Define NO_NSEC=YesPlease when neither stat.st_mtim.tv_nsec nor
+# stat.st_mtimespec.tv_nsec exists.
+AC_CHECK_MEMBER([struct stat.st_mtimespec.tv_nsec])
+AC_CHECK_MEMBER([struct stat.st_mtim.tv_nsec])
+if test x$ac_cv_member_struct_stat_st_mtimespec_tv_nsec = xyes; then
+ USE_ST_TIMESPEC=YesPlease
+ GIT_CONF_SUBST([USE_ST_TIMESPEC])
+elif test x$ac_cv_member_struct_stat_st_mtim_tv_nsec != xyes; then
+ NO_NSEC=YesPlease
+ GIT_CONF_SUBST([NO_NSEC])
+fi
+#