diff options
Diffstat (limited to 'pkgs/build-support/cc-wrapper/utils.sh')
| -rw-r--r-- | pkgs/build-support/cc-wrapper/utils.sh | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/pkgs/build-support/cc-wrapper/utils.sh b/pkgs/build-support/cc-wrapper/utils.sh index 4b2b1380918..9215fe2dc39 100644 --- a/pkgs/build-support/cc-wrapper/utils.sh +++ b/pkgs/build-support/cc-wrapper/utils.sh @@ -25,7 +25,11 @@ mangleVarBool() { for infix in "${role_infixes[@]}"; do local inputVar="${var/+/${infix}}" if [ -v "$inputVar" ]; then - let "${outputVar} |= ${!inputVar}" + # "1" in the end makes `let` return success error code when + # expression itself evaluates to zero. + # We don't use `|| true` because that would silence actual + # syntax errors from bad variable values. + let "${outputVar} |= ${!inputVar:-0}" "1" fi done } |