* unistd-safer.m4 (gl_UNISTD_SAFER): Check for missing pipe.

diff --git a/m4/ChangeLog b/m4/ChangeLog
index d17ac35ba7aa0610bd3743136afecda0a3b9d884..89bc9f480c0869357ffe447bf262c9786003f395 100644 (file)
--- a/m4/ChangeLog
+++ b/m4/ChangeLog
@@ -1,3 +1,7 @@
+2006-07-26  Eric Blake  <ebb9@byu.net>
+
+       * unistd-safer.m4 (gl_UNISTD_SAFER): Check for missing pipe.
+
 2006-07-26  Bruno Haible  <bruno@clisp.org>
 
        * stdint.m4 (gl_STDINT_H): Also verify the existence of the macros

diff --git a/m4/unistd-safer.m4 b/m4/unistd-safer.m4
index 6fbe4c6fb09ad9d0786b0a339533e43f7440d016..30526405d03688a5dce4fb31b92b2c52ffe98407 100644 (file)
--- a/m4/unistd-safer.m4
+++ b/m4/unistd-safer.m4
@@ -1,11 +1,12 @@
-#serial 7
-dnl Copyright (C) 2002, 2005 Free Software Foundation, Inc.
+#serial 8
+dnl Copyright (C) 2002, 2005, 2006 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_UNISTD_SAFER],
 [
+  AC_CHECK_FUNCS_ONCE([pipe])
   AC_LIBSOURCES([dup-safer.c, fd-safer.c, pipe-safer.c, unistd-safer.h, unistd--.h])
   AC_LIBOBJ([dup-safer])
   AC_LIBOBJ([fd-safer])