Diffstat (limited to 'mcon/U/d_ttyname.U')
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diff --git a/mcon/U/d_ttyname.U b/mcon/U/d_ttyname.U
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+?RCS: $Id: d_backtrace.U 65 2011-01-01 22:01:00Z rmanfredi $
+?RCS: Copyright (c) 2011, Raphael Manfredi
+?RCS: Copyright (c) 2011, Christian Biere
+?RCS: You may redistribute only under the terms of the Artistic License,
+?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 License; a copy of which may be found at the root
+?RCS: of the source tree for dist 4.0.
+?RCS: $Log: d_semget.U,v $
+?MAKE:d_ttyname: Trylink cat i_unistd
+?MAKE: -pick add $@ %<
+?S: This variable conditionally defines the HAS_TTYNAME symbol, which
+?S: indicates to the C program that the ttyname() routine is available
+?S: to determine the pathname of the terminal associated with
+?S: a file descriptor.
+?C: This symbol, if defined, indicates that the ttyname() routine is
+?C: available to determine the pathname of the terminal associated with
+?C: a file descriptor. The <unistd.h> header must be included to use
+?C: this routine.
+?H:#$d_ttyname HAS_TTYNAME /**/
+: see if ttyname exists
+$cat >try.c <<EOC
+ char *name = ttyname(1);
+ char c = *ttyname(2);
+ return name == c ? 0 : 1;