DOS: implemented console size detection

This is done via 10h interrupts and special memory regions.
The alternative would have been to use set the cursor to 9999,9999
and query the cursor position via ANSI escape sequences.

1 files changed, 4 insertions, 0 deletions

diff --git a/teco.h b/teco.h
index c72fb03..c5cc417 100644
--- a/teco.h
+++ b/teco.h
@@ -477,6 +477,10 @@ typedef unsigned long teco_ptrint_t;
 #include <direct.h>
 #endif
 
+#if HAVE_I86_H
+#include <i86.h>
+#endif
+
 #if HAVE_SYS_WAIT_H
 # include <sys/wait.h>
 #endif