* lib/getcwd.c (__getcwd): Remove redundant comparison of buf to NULL.

[gnulib.git] / lib / pipe.c

diff --git a/lib/pipe.c b/lib/pipe.c
index 36d7ad0..6d075a6 100644 (file)
--- a/lib/pipe.c
+++ b/lib/pipe.c
@@ -1,5 +1,5 @@
 /* Creation of subprocesses, communicating via pipes.
-   Copyright (C) 2001-2004 Free Software Foundation, Inc.
+   Copyright (C) 2001-2004, 2006-2007 Free Software Foundation, Inc.
    Written by Bruno Haible <haible@clisp.cons.org>, 2001.
 
    This program is free software; you can redistribute it and/or modify
@@ -14,12 +14,10 @@
 
    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software Foundation,
-   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
 
 
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
+#include <config.h>
 
 /* Specification.  */
 #include "pipe.h"
@@ -28,13 +26,9 @@
 #include <fcntl.h>
 #include <stdlib.h>
 #include <signal.h>
-
-#ifdef HAVE_UNISTD_H
-# include <unistd.h>
-#endif
+#include <unistd.h>
 
 #include "error.h"
-#include "exit.h"
 #include "fatal-signal.h"
 #include "wait-process.h"
 #include "gettext.h"
@@ -50,16 +44,20 @@
 #else
 
 /* Unix API.  */
-# ifdef HAVE_POSIX_SPAWN
+# if HAVE_POSIX_SPAWN
 #  include <spawn.h>
 # else
-#  ifdef HAVE_VFORK_H
+#  if HAVE_VFORK_H
 #   include <vfork.h>
 #  endif
 # endif
 
 #endif
 
+#if ! HAVE_ENVIRON_DECL
+extern char **environ;
+#endif
+
 #ifndef STDIN_FILENO
 # define STDIN_FILENO 0
 #endif
@@ -70,6 +68,11 @@
 # define STDERR_FILENO 2
 #endif
 
+/* The results of open() in this file are not used with fchdir,
+   therefore save some unnecessary work in fchdir.c.  */
+#undef open
+#undef close
+
 
 #ifdef EINTR