path: root/mcon/U/d_fchdir.U
diff options
Diffstat (limited to 'mcon/U/d_fchdir.U')
1 files changed, 40 insertions, 0 deletions
diff --git a/mcon/U/d_fchdir.U b/mcon/U/d_fchdir.U
new file mode 100644
index 0000000..2ed47e2
--- /dev/null
+++ b/mcon/U/d_fchdir.U
@@ -0,0 +1,40 @@
+?RCS: Copyright (c) 2015 Raphael Manfredi
+?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:d_fchdir: Trylink cat i_unistd
+?MAKE: -pick add $@ %<
+?S: This variable conditionally defines HAS_FCHDIR if fchdir() is
+?S: available to change the directory to that of an opened directory.
+?C: This symbol, if defined, indicates that the fchdir routine is
+?C: available to change the working directory to that of the opened
+?C: directory whose file descriptor is given.
+?H:#$d_fchdir HAS_FCHDIR /**/
+?LINT:set d_fchdir
+: see if fchdir exists
+$cat >try.c <<EOC
+#$i_unistd I_UNISTD
+#ifdef I_UNISTD
+#include <unistd.h>
+int main(void)
+ static int fd, ret;
+ ret |= fchdir(fd);
+ return ret ? 0 : 1;
+set d_fchdir
+eval $trylink