delete trailing whitespace from control files

[debian/gzip] / m4 / opendir.m4

diff --git a/m4/opendir.m4 b/m4/opendir.m4
index 08da440b387df87b65611f4bacfa04de90acef60..5609536ab610dad8bbd49b05935254ae121e242d 100644 (file)
--- a/m4/opendir.m4
+++ b/m4/opendir.m4
@@ -1,5 +1,5 @@
-# opendir.m4 serial 2
-dnl Copyright (C) 2011-2012 Free Software Foundation, Inc.
+# opendir.m4 serial 5
+dnl Copyright (C) 2011-2018 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.
@@ -7,6 +7,7 @@ dnl with or without modifications, as long as this notice is preserved.
 AC_DEFUN([gl_FUNC_OPENDIR],
 [
   AC_REQUIRE([gl_DIRENT_H_DEFAULTS])
+  AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
 
   AC_CHECK_FUNCS([opendir])
   if test $ac_cv_func_opendir = no; then
@@ -22,4 +23,10 @@ AC_DEFUN([gl_FUNC_OPENDIR],
       fi
     fi
   ])
+  dnl Replace opendir() on OS/2 kLIBC to support dirfd() function replaced
+  dnl by gnulib.
+  case $host_os,$HAVE_OPENDIR in
+    os2*,1)
+      REPLACE_OPENDIR=1;;
+  esac
 ])