X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fftruncate.m4;h=d25c17ef66e51fe0a653e2e86de102c368cc2a9e;hb=db0f2ae452a6827f01474b79b55080e700afb974;hp=d158e25b82eaf2df81e0dcdc109c0ecb086411af;hpb=3cb664198b93b8c1119c8ba1a02c1fda2136f4ce;p=gnulib.git

diff --git a/m4/ftruncate.m4 b/m4/ftruncate.m4
index d158e25b8..d25c17ef6 100644
--- a/m4/ftruncate.m4
+++ b/m4/ftruncate.m4
@@ -1,14 +1,23 @@
-#serial 3
+#serial 7
 
 # See if we need to emulate a missing ftruncate function using fcntl or chsize.
 
-AC_DEFUN(jm_FUNC_FTRUNCATE,
-[
-  AC_CHECK_FUNCS(ftruncate, , [ftruncate_missing=yes])
+# Copyright (C) 2000, 2001, 2003, 2004 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.
 
-  if test "$ftruncate_missing" = yes; then
-    AC_CHECK_HEADERS([unistd.h])
-    AC_CHECK_FUNCS([chsize])
-    AC_LIBOBJ(ftruncate)
+AC_DEFUN([gl_FUNC_FTRUNCATE],
+[
+  AC_REPLACE_FUNCS(ftruncate)
+  if test $ac_cv_func_ftruncate = no; then
+    gl_PREREQ_FTRUNCATE
   fi
 ])
+
+# Prerequisites of lib/ftruncate.c.
+AC_DEFUN([gl_PREREQ_FTRUNCATE],
+[
+  AC_CHECK_HEADERS_ONCE(unistd.h)
+  AC_CHECK_FUNCS(chsize)
+])