diff options
| -rw-r--r-- | pkgs/build-support/cc-wrapper/add-hardening.sh | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/pkgs/build-support/cc-wrapper/add-hardening.sh b/pkgs/build-support/cc-wrapper/add-hardening.sh index e5d296f6c9c..b23fda1fed7 100644 --- a/pkgs/build-support/cc-wrapper/add-hardening.sh +++ b/pkgs/build-support/cc-wrapper/add-hardening.sh @@ -38,7 +38,9 @@ for flag in "${!hardeningEnableMap[@]}"; do case $flag in fortify) if (( "${NIX_DEBUG:-0}" >= 1 )); then echo HARDENING: enabling fortify >&2; fi - hardeningCFlags+=('-O2' '-D_FORTIFY_SOURCE=2') + # Use -U_FORTIFY_SOURCE to avoid warnings on toolchains that explicitly + # set -D_FORTIFY_SOURCE=0 (like 'clang -fsanitize=address'). + hardeningCFlags+=('-O2' '-U_FORTIFY_SOURCE' '-D_FORTIFY_SOURCE=2') ;; stackprotector) if (( "${NIX_DEBUG:-0}" >= 1 )); then echo HARDENING: enabling stackprotector >&2; fi |