X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fftruncate.m4;h=4a47ba4297a1f020c97392f9deef233e357f1cc0;hb=531e3287a33c005edeeba10b0ab0910c6686e049;hp=ec593a96de068eda24748dc44e8e868b3ee65547;hpb=e059c2358aad79ce8dfd9581dd6f12ce8503dc63;p=gnulib.git

diff --git a/m4/ftruncate.m4 b/m4/ftruncate.m4
index ec593a96d..4a47ba429 100644
--- a/m4/ftruncate.m4
+++ b/m4/ftruncate.m4
@@ -1,18 +1,24 @@
-#serial 5
+# serial 18
 
-# See if we need to emulate a missing ftruncate function using fcntl or chsize.
+# See if we need to emulate a missing ftruncate function using chsize.
 
-AC_DEFUN([jm_FUNC_FTRUNCATE],
+# Copyright (C) 2000-2001, 2003-2007, 2009-2011 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.
+
+AC_DEFUN([gl_FUNC_FTRUNCATE],
 [
-  AC_REPLACE_FUNCS(ftruncate)
+  AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
+  AC_CHECK_FUNCS_ONCE([ftruncate])
   if test $ac_cv_func_ftruncate = no; then
-    gl_PREREQ_FTRUNCATE
+    HAVE_FTRUNCATE=0
   fi
 ])
 
 # Prerequisites of lib/ftruncate.c.
 AC_DEFUN([gl_PREREQ_FTRUNCATE],
 [
-  AC_CHECK_HEADERS_ONCE(unistd.h)
-  AC_CHECK_FUNCS(chsize)
+  AC_REQUIRE([AC_C_INLINE])
+  AC_CHECK_FUNCS([chsize])
 ])