delete trailing whitespace from control files

[debian/gzip] / m4 / close.m4

diff --git a/m4/close.m4 b/m4/close.m4
index fdcc96b67398bc85b66812ef9a6fea48944c4cc0..f11b17ec7f7c0c8aa85b30c826b49b6ca5835b47 100644 (file)
--- a/m4/close.m4
+++ b/m4/close.m4
@@ -1,26 +1,35 @@
-# close.m4 serial 5
-dnl Copyright (C) 2008-2009 Free Software Foundation, Inc.
+# close.m4 serial 9
+dnl Copyright (C) 2008-2018 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 
 AC_DEFUN([gl_FUNC_CLOSE],
 [
+  AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
+  m4_ifdef([gl_MSVC_INVAL], [
+    AC_REQUIRE([gl_MSVC_INVAL])
+    if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then
+      REPLACE_CLOSE=1
+    fi
+  ])
   m4_ifdef([gl_PREREQ_SYS_H_WINSOCK2], [
     gl_PREREQ_SYS_H_WINSOCK2
     if test $UNISTD_H_HAVE_WINSOCK2_H = 1; then
       dnl Even if the 'socket' module is not used here, another part of the
       dnl application may use it and pass file descriptors that refer to
       dnl sockets to the close() function. So enable the support for sockets.
-      gl_REPLACE_CLOSE
+      REPLACE_CLOSE=1
+    fi
+  ])
+  dnl Replace close() for supporting the gnulib-defined fchdir() function,
+  dnl to keep fchdir's bookkeeping up-to-date.
+  m4_ifdef([gl_FUNC_FCHDIR], [
+    if test $REPLACE_CLOSE = 0; then
+      gl_TEST_FCHDIR
+      if test $HAVE_FCHDIR = 0; then
+        REPLACE_CLOSE=1
+      fi
     fi
   ])
-])
-
-AC_DEFUN([gl_REPLACE_CLOSE],
-[
-  AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
-  REPLACE_CLOSE=1
-  AC_LIBOBJ([close])
-  gl_REPLACE_FCLOSE
 ])