Move (actually copy) support for the sgi._getpty() function into
posix.openpty(). And conveniently also check if CVS write access really
works.
Closes SF patch #100722
diff --git a/configure.in b/configure.in
index 8315ca2..7a819e4 100644
--- a/configure.in
+++ b/configure.in
@@ -826,7 +826,7 @@
setlocale setregid setreuid setsid setpgid setpgrp setuid setvbuf \
sigaction siginterrupt sigrelse strftime strptime symlink sysconf \
tcgetpgrp tcsetpgrp tempnam timegm times tmpfile tmpnam tmpnam_r \
- truncate uname waitpid)
+ truncate uname waitpid _getpty)
# check for openpty and forkpty