X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fsys_file_h.m4;h=8538e1fa8690105da5f0194241595eb065397fa8;hb=acb9956a60a6bab2bcd22139d7e79140f28a9b18;hp=436c6fec14f28e35e9e338ad0a0c3b5e0a5f8816;hpb=e69247d77e183da8d4d1d20e8993933aa420cbca;p=gnulib.git

diff --git a/m4/sys_file_h.m4 b/m4/sys_file_h.m4
index 436c6fec1..8538e1fa8 100644
--- a/m4/sys_file_h.m4
+++ b/m4/sys_file_h.m4
@@ -1,6 +1,7 @@
 # Configure a replacement for <sys/file.h>.
+# serial 6
 
-# Copyright (C) 2008 Free Software Foundation, Inc.
+# Copyright (C) 2008-2011 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.
@@ -11,27 +12,26 @@ AC_DEFUN([gl_HEADER_SYS_FILE_H],
 [
   AC_REQUIRE([gl_HEADER_SYS_FILE_H_DEFAULTS])
 
-  dnl Only flock is defined in a working <sys/file.h>.  If that
-  dnl function is already there, we don't want to do any substitution.
-  AC_CHECK_FUNCS_ONCE([flock])
-
+  dnl <sys/file.h> is always overridden, because of GNULIB_POSIXCHECK.
   gl_CHECK_NEXT_HEADERS([sys/file.h])
-  SYS_FILE_H='sys/file.h'
-  AC_SUBST([SYS_FILE_H])
 
-  AC_CHECK_HEADERS_ONCE([sys/file.h])
   if test $ac_cv_header_sys_file_h = yes; then
     HAVE_SYS_FILE_H=1
   else
     HAVE_SYS_FILE_H=0
   fi
   AC_SUBST([HAVE_SYS_FILE_H])
+
+  dnl Check for declarations of anything we want to poison if the
+  dnl corresponding gnulib module is not in use.
+  gl_WARN_ON_USE_PREPARE([[#include <sys/file.h>
+    ]], [flock])
 ])
 
 AC_DEFUN([gl_HEADER_SYS_FILE_MODULE_INDICATOR],
 [
   AC_REQUIRE([gl_HEADER_SYS_FILE_H_DEFAULTS])
-  GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
+  gl_MODULE_INDICATOR_SET_VARIABLE([$1])
 ])
 
 AC_DEFUN([gl_HEADER_SYS_FILE_H_DEFAULTS],