dup2: fix logic bugs

[gnulib.git] / ChangeLog

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+2009-12-08  Eric Blake  <ebb9@byu.net>
+
+       dup2: fix logic bugs
+       * lib/dup2.c (dup2): Fix logic bugs.  Use HAVE_DUP2 rather than
+       REPLACE_DUP2 to decide when rpl_dup2 is needed.
+       * m4/dup2.m4 (gl_REPLACE_DUP2): Only define REPLACE_DUP2 when dup2
+       exists.
+       (gl_FUNC_DUP2): Drop unneeded AC_SUBST.
+
 2009-12-07  Eric Blake  <ebb9@byu.net>
 
        unlink: fix m4 detection