delete trailing whitespace from control files

[debian/gzip] / m4 / fchdir.m4

diff --git a/m4/fchdir.m4 b/m4/fchdir.m4
index c248fdce58f75af70d65e32086fd8db531ac7ad7..470b228f7f9f9a623ca2687814eff34ddf9833bc 100644 (file)
--- a/m4/fchdir.m4
+++ b/m4/fchdir.m4
@@ -1,5 +1,5 @@
-# fchdir.m4 serial 21
-dnl Copyright (C) 2006-2013 Free Software Foundation, Inc.
+# fchdir.m4 serial 24
+dnl Copyright (C) 2006-2018 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.
@@ -31,10 +31,14 @@ AC_DEFUN([gl_FUNC_FCHDIR],
         [gl_cv_func_open_directory_works=yes],
         [gl_cv_func_open_directory_works=no],
         [case "$host_os" in
-                   # Guess yes on glibc systems.
-           *-gnu*) gl_cv_func_open_directory_works="guessing yes" ;;
-                   # If we don't know, assume the worst.
-           *)      gl_cv_func_open_directory_works="guessing no" ;;
+                            # Guess yes on Linux systems.
+           linux-* | linux) gl_cv_func_open_directory_works="guessing yes" ;;
+                            # Guess yes on glibc systems.
+           *-gnu* | gnu*)   gl_cv_func_open_directory_works="guessing yes" ;;
+                            # Guess no on native Windows.
+           mingw*)          gl_cv_func_open_directory_works="guessing no" ;;
+                            # If we don't know, assume the worst.
+           *)               gl_cv_func_open_directory_works="guessing no" ;;
          esac
         ])])
     case "$gl_cv_func_open_directory_works" in