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-rw-r--r--pkgs/build-support/cc-wrapper/setup-hook.sh2
1 files changed, 1 insertions, 1 deletions
diff --git a/pkgs/build-support/cc-wrapper/setup-hook.sh b/pkgs/build-support/cc-wrapper/setup-hook.sh
index 3e8494cf9c18..104b82425f29 100644
--- a/pkgs/build-support/cc-wrapper/setup-hook.sh
+++ b/pkgs/build-support/cc-wrapper/setup-hook.sh
@@ -54,7 +54,7 @@ do
     if
         PATH=$_PATH type -p "@binPrefix@$CMD" > /dev/null
     then
-        export "${ENV_PREFIX}${CMD^^}=@binPrefix@${CMD}";
+        export "${ENV_PREFIX}$(echo "$CMD" | tr "[:lower:]" "[:upper:]")=@binPrefix@${CMD}";
     fi
 done