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+?RCS: $Id$
+?RCS:
+?RCS: Copyright (c) 2006, Christian Biere
+?RCS:
+?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:
+?MAKE:d_sendfile: Trylink cat
+?MAKE: -pick add $@ %<
+?S:d_sendfile:
+?S: This variable conditionally defines the HAS_SENDFILE symbol, which
+?S: indicates to the C program that the sendfile() routine is available.
+?S:.
+?C:HAS_SENDFILE:
+?C: This symbol, if defined, indicates that the sendfile routine is
+?C: available.
+?C:.
+?H:#$d_sendfile HAS_SENDFILE /**/
+?H:.
+?LINT:set d_sendfile
+: see if sendfile exists
+$cat >try.c <<EOC
+#include <sys/types.h>
+#include <sys/sendfile.h>
+int main(void)
+{
+ static ssize_t ret;
+ static int out_fd, in_fd;
+ static off_t offset;
+ static size_t n;
+ ret |= sendfile(out_fd, in_fd, &offset, n);
+ return ret ? 0 : 1;
+}
+EOC
+cyn=sendfile
+set d_sendfile '-lsendfile'
+eval $trylink
+