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+?RCS:
+?RCS: Copyright (c) 2015 Raphael Manfredi
+?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_openat: Trylink cat
+?MAKE: -pick add $@ %<
+?S:d_openat:
+?S: This variable conditionally defines HAS_OPENAT if openat() is
+?S: available to open files with a relative path interepreted in
+?S: the context of an opened directory.
+?S:.
+?C:HAS_OPENAT:
+?C: This symbol, if defined, indicates that the openat() routine is
+?C: available to open files with a relative path interepreted in
+?C: the context of an opened directory.
+?C:.
+?H:#$d_openat HAS_OPENAT /**/
+?H:.
+?LINT:set d_openat
+: see if openat exists
+$cat >try.c <<EOC
+#include <fcntl.h> /* AT_* constants */
+int main(void)
+{
+ static int ret;
+ ret |= openat(AT_FDCWD, "path", /* flags */ 0, /* mode */ 0);
+ return ret ? 0 : 1;
+}
+EOC
+cyn=openat
+set d_openat
+eval $trylink
+