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-rw-r--r--unix/tkConfig.h.in4
1 files changed, 0 insertions, 4 deletions
diff --git a/unix/tkConfig.h.in b/unix/tkConfig.h.in
index da96f16..678e010 100644
--- a/unix/tkConfig.h.in
+++ b/unix/tkConfig.h.in
@@ -154,10 +154,6 @@
/* Are we to override what our default encoding is? */
#undef TCL_DEFAULT_ENCODING
-/* Use better emulation of non-blocking channels for channels without
- BlockModeProc? */
-#undef TCL_IO_TRACK_OS_FOR_DRIVER_WITH_BAD_BLOCKING
-
/* Can this platform load code from memory? */
#undef TCL_LOAD_FROM_MEMORY