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-rw-r--r--tcltests/test_bio.tcl4
1 files changed, 4 insertions, 0 deletions
diff --git a/tcltests/test_bio.tcl b/tcltests/test_bio.tcl
index addcbeb..16a40ae 100644
--- a/tcltests/test_bio.tcl
+++ b/tcltests/test_bio.tcl
@@ -1,3 +1,7 @@
+if {[info commands bio] eq ""} {
+ return "noimpl"
+}
+
proc copy_binary_file {infile outfile} {
set in [open $infile r]
set out [open $outfile w]