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+?RCS: $Id: Sendfile64.U 167 2013-05-08 17:58:00Z rmanfredi $
+?RCS: Copyright (c) 2006, 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.
+?MAKE:Sendfile64: Largefile Trylink d_sendfile i_syssendfile cat
+?MAKE: -pick add $@ %<
+?LINT:change i_syssendfile d_sendfile
+: determine whether sendfile works with 64-bit file support
+$cat >try.c <<EOC
+#$i_syssendfile I_SYS_SENDFILE
+#include <sys/sendfile.h>
+int main(void)
+ return 0;
+cyn="whether sendfile() works with current compiling flags"
+set result
+eval $trylink
+case "$result" in
+ i_syssendfile="$undef"
+ d_sendfile="$undef"
+ ;;