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-rw-r--r--gl/m4/dup2.m47
1 files changed, 5 insertions, 2 deletions
diff --git a/gl/m4/dup2.m4 b/gl/m4/dup2.m4
index 269cfdc112..dc3070c0d9 100644
--- a/gl/m4/dup2.m4
+++ b/gl/m4/dup2.m4
@@ -1,4 +1,4 @@
-#serial 19
+#serial 20
dnl Copyright (C) 2002, 2005, 2007, 2009-2013 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@ -39,9 +39,11 @@ AC_DEFUN([gl_FUNC_DUP2],
/* Many gnulib modules require POSIX conformance of EBADF. */
if (dup2 (2, 1000000) == -1 && errno != EBADF)
result |= 16;
- /* Flush out a cygwin core dump. */
+ /* Flush out some cygwin core dumps. */
if (dup2 (2, -1) != -1 || errno != EBADF)
result |= 32;
+ dup2 (2, 255);
+ dup2 (2, 256);
return result;
])
],
@@ -65,6 +67,7 @@ AC_DEFUN([gl_FUNC_DUP2],
*yes) ;;
*)
REPLACE_DUP2=1
+ AC_CHECK_FUNCS([setdtablesize])
;;
esac
fi