unset NIX_HARDENING_ENABLE in fast build mode

`NIX_HARDENING_ENABLE` causes `_FORTIFY_SOURCE` to be defined. This isn't compatible with `-O0`, and the compiler will happily remind us about it at every call, spamming the terminal with warnings and stack traces. We don't really care hardening in that case, so just disable it if we pass `OPTIMIZE=0`.
NixOS · Feb 28, 2024 · f6142cd · f6142cd
1 parent da90be7
commit f6142cd
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diff --git a/Makefile b/Makefile
@@ -68,6 +68,7 @@ ifeq ($(OPTIMIZE), 1)
   GLOBAL_LDFLAGS += $(CXXLTO)
 else
   GLOBAL_CXXFLAGS += -O0 -U_FORTIFY_SOURCE
+  unexport NIX_HARDENING_ENABLE
 endif
 
 include mk/platform.mk

diff --git a/flake.nix b/flake.nix
@@ -396,6 +396,7 @@
             # Make bash completion work.
             XDG_DATA_DIRS+=:$out/share
           '';
+
           nativeBuildInputs = attrs.nativeBuildInputs or []
             # TODO: Remove the darwin check once
             # https://github.com/NixOS/nixpkgs/pull/291814 is available