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fix(nix): the dev shell disables fortify hardening so jemalloc configures #1614

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fix(nix): the dev shell disables fortify hardening so jemalloc configures #1614

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9 changes: 9 additions & 0 deletions flake.nix
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Original file line number Diff line number Diff line change
Expand Up @@ -96,6 +96,15 @@
LIBCLANG_PATH = "${pkgs.llvmPackages.libclang.lib}/lib";
};

# The cc-wrapper's fortify hardening adds -D_FORTIFY_SOURCE to every
# C compile. Debug builds compile C at -O0, so glibc then emits
# "_FORTIFY_SOURCE requires compiling with optimization". jemalloc's
# configure probes compile with -Werror, so every probe fails and
# configure stops ("cannot determine return type of strerror_r").
# This shell only makes development builds; release images are
# built outside it.
hardeningDisable = [ "fortify" ];

shellHook = ''
# Insulate cargo from the host's rustup installation.
#
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