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-rw-r--r--src/interp/i-syscmd.boot4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/interp/i-syscmd.boot b/src/interp/i-syscmd.boot
index 0ad608b3..255daac2 100644
--- a/src/interp/i-syscmd.boot
+++ b/src/interp/i-syscmd.boot
@@ -1395,14 +1395,14 @@ previousInterpreterFrame() ==
updateCurrentInterpreterFrame()
null rest $interpreterFrameRing => NIL -- nothing to do
[:b,l] := $interpreterFrameRing
- $interpreterFrameRing := NCONC2([l],b)
+ $interpreterFrameRing := append!([l],b)
updateFromCurrentInterpreterFrame()
nextInterpreterFrame() ==
updateCurrentInterpreterFrame()
null rest $interpreterFrameRing => NIL -- nothing to do
$interpreterFrameRing :=
- NCONC2(rest $interpreterFrameRing,[first $interpreterFrameRing])
+ append!(rest $interpreterFrameRing,[first $interpreterFrameRing])
updateFromCurrentInterpreterFrame()