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?RCS: Copyright (c) 1991-1997, 2004-2006, Raphael Manfredi
?RCS: You may redistribute only under the terms of the Artistic Licence,
?RCS: as specified in the README file that comes with the distribution.
?RCS: You may reuse parts of this distribution only within the terms of
?RCS: that same Artistic Licence; a copy of which may be found at the root
?RCS: of the source tree for dist 4.0.
?RCS: $Log: d_preadv.U,v $
?MAKE: -pick add $@ %<
?S: This variable conditionally defines the HAS_PREADV symbol, which
?S: indicates to the C program that the preadv() routine is available.
?C: This symbol, if defined, indicates that the preadv routine is
?C: available to perform vectored reads on a file descriptor at a
?C: given offset.
?H:#$d_preadv HAS_PREADV /**/
: see if preadv exists
set preadv d_preadv