maint: update copyright

[gnulib.git] / m4 / st_dm_mode.m4

diff --git a/m4/st_dm_mode.m4 b/m4/st_dm_mode.m4
index 823f9ed..3c9b52e 100644 (file)
--- a/m4/st_dm_mode.m4
+++ b/m4/st_dm_mode.m4
@@ -1,25 +1,23 @@
+# serial 6
+
+# Copyright (C) 1998-1999, 2001, 2009-2014 Free Software Foundation, Inc.
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
 # Define HAVE_ST_DM_MODE if struct stat has an st_dm_mode member.
 
-AC_DEFUN(AC_STRUCT_ST_DM_MODE,
- [AC_CACHE_CHECK([for st_dm_mode in struct stat], ac_cv_struct_st_dm_mode,
-   [AC_TRY_COMPILE([#include <sys/types.h>
-#include <sys/stat.h>], [struct stat s; s.st_dm_mode;],
-     ac_cv_struct_st_dm_mode=yes,
-     ac_cv_struct_st_dm_mode=no)])
+AC_DEFUN([AC_STRUCT_ST_DM_MODE],
+ [AC_CACHE_CHECK([for st_dm_mode in struct stat], [ac_cv_struct_st_dm_mode],
+   [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+#include <sys/types.h>
+#include <sys/stat.h>]], [[struct stat s; s.st_dm_mode;]])],
+     [ac_cv_struct_st_dm_mode=yes],
+     [ac_cv_struct_st_dm_mode=no])])
 
   if test $ac_cv_struct_st_dm_mode = yes; then
-    if test x = y; then
-      # This code is deliberately never run via ./configure.
-      # FIXME: this is a hack to make autoheader put the corresponding
-      # HAVE_* undef for this symbol in config.h.in.  This saves me the
-      # trouble of having to add the #undef in acconfig.h manually.
-      AC_CHECK_FUNCS(ST_DM_MODE)
-    fi
-    # Defining it this way (rather than via AC_DEFINE) short-circuits the
-    # autoheader check -- autoheader doesn't know it's already been taken
-    # care of by the hack above.
-    ac_kludge=HAVE_ST_DM_MODE
-    AC_DEFINE_UNQUOTED($ac_kludge)
+    AC_DEFINE([HAVE_ST_DM_MODE], [1],
+              [Define if struct stat has an st_dm_mode member. ])
   fi
  ]
 )