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-rw-r--r--win/tclWinChan.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/win/tclWinChan.c b/win/tclWinChan.c
index 0f17834..a20cb8f 100644
--- a/win/tclWinChan.c
+++ b/win/tclWinChan.c
@@ -1337,7 +1337,7 @@ TclWinOpenFileChannel(
infoPtr->flags = appendMode;
infoPtr->handle = handle;
infoPtr->dirty = 0;
- wsprintfA(channelName, "file%lx", PTR2INT(infoPtr));
+ sprintf(channelName, "file" TCL_I_MODIFIER "x", (size_t)infoPtr);
infoPtr->channel = Tcl_CreateChannel(&fileChannelType, channelName,
(ClientData) infoPtr, permissions);