experiment empty libgcc_eh

default.nix

@@ -9,7 +9,7 @@ let
 
   pkgs = import (fetchTarball "https://github.com/nixos/nixpkgs/archive/nixos-unstable.tar.gz") {
     crossSystem = {
-      inherit isStatic;
+      isStatic = true;
       config = target;
     };
   };
@@ -47,6 +47,7 @@ let
     pkg-config = pkgs.pkg-config;
     buildNoDefaultFeatures = !defaultFeatures;
     buildFeatures = lib.strings.splitString "," features;
+    binutils = pkgs.binutils;
   };
 
 in

package.nix

@@ -12,8 +12,24 @@
 , gpgme
 , buildNoDefaultFeatures ? false
 , buildFeatures ? [ ]
+, binutils
 }:
 
+let
+  # HACK: work around https://github.com/NixOS/nixpkgs/issues/177129
+  # Though this is an issue between Clang and GCC,
+  # so it may not get fixed anytime soon...
+  empty-libgcc_eh = stdenv.mkDerivation {
+    pname = "empty-libgcc_eh";
+    version = "0";
+    dontUnpack = true;
+    installPhase = ''
+      mkdir -p "$out"/lib
+      "${lib.getExe' binutils "ar"}" r "$out"/lib/libgcc_eh.a
+    '';
+  };
+in
+
 rustPlatform.buildRustPackage rec {
   inherit buildNoDefaultFeatures buildFeatures;
 
@@ -42,7 +58,8 @@ rustPlatform.buildRustPackage rec {
     ++ lib.optional (installManPages || installShellCompletions) installShellFiles;
 
   buildInputs = [ ]
-    ++ lib.optionals hostPlatform.isDarwin (with darwin.apple_sdk.frameworks; [ Security ])
+    ++ lib.optionals hostPlatform.isWindows empty-libgcc_eh
+    ++ lib.optionals hostPlatform.isDarwin (with darwin.apple_sdk_11_0.frameworks; [ Security ])
     ++ lib.optional (builtins.elem "notmuch" buildFeatures) notmuch
     ++ lib.optional (builtins.elem "pgp-gpg" buildFeatures) gpgme;