New file containing library-related checks from

[gnulib.git] / m4 / st_mtim.m4

diff --git a/m4/st_mtim.m4 b/m4/st_mtim.m4
index ed19c3d..ec58bef 100644 (file)
--- a/m4/st_mtim.m4
+++ b/m4/st_mtim.m4
@@ -1,4 +1,4 @@
-#serial 3
+#serial 4
 
 dnl From Paul Eggert.
 
@@ -24,7 +24,9 @@ AC_DEFUN(AC_STRUCT_ST_MTIM_NSEC,
     CPPFLAGS="$ac_save_CPPFLAGS"])
 
   if test $ac_cv_struct_st_mtim_nsec != no; then
-    AC_DEFINE_UNQUOTED(ST_MTIM_NSEC, $ac_cv_struct_st_mtim_nsec)
+    AC_DEFINE_UNQUOTED(ST_MTIM_NSEC, $ac_cv_struct_st_mtim_nsec,
+      [Define to be the nanoseconds member of struct stat's st_mtim,
+   if it exists.])
   fi
  ]
 )