Trying to create static Haskell binaries using Nix

Unfortunately, the build fails with

/nix/store/cdbsfljc8m900axs37fab7gnp2y1dksn-binutils-2.31.1/bin/ld: /nix/store/x0ybqvkk6h6x8mhsy5gghplsfvammq6q-gcc-9.3.0/lib/gcc/x86_64-unknown-linux-musl/9.3.0/crtbeginT.o: relocation R_X86_64_32 against hidden symbol `__TMC_END__' can not be used when making a shared object
/nix/store/cdbsfljc8m900axs37fab7gnp2y1dksn-binutils-2.31.1/bin/ld: /nix/store/x0ybqvkk6h6x8mhsy5gghplsfvammq6q-gcc-9.3.0/lib/gcc/x86_64-unknown-linux-musl/9.3.0/crtend.o: relocation R_X86_64_32 against `.ctors' can not be used when making a shared object; recompile with -fPIC

This may be related to

- nh2/static-haskell-nix#99
- input-output-hk/haskell.nix#914

nix/sources.json

@@ -22,5 +22,17 @@
         "type": "tarball",
         "url": "https://github.com/NixOS/nixpkgs/archive/65c9cc79f1d179713c227bf447fb0dac384cdcda.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
+    },
+    "static-haskell-nix": {
+        "branch": "master",
+        "description": "easily build most Haskell programs into fully static Linux executables",
+        "homepage": "",
+        "owner": "nh2",
+        "repo": "static-haskell-nix",
+        "rev": "382150290ba43b6eb41981c1ab3b32aa31798140",
+        "sha256": "0zsyplzf1k235rl26irm27y5ljd8ciayw80q575msxa69a9y2nvd",
+        "type": "tarball",
+        "url": "https://github.com/nh2/static-haskell-nix/archive/382150290ba43b6eb41981c1ab3b32aa31798140.tar.gz",
+        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     }
 }

project.nix

@@ -1,30 +1,35 @@
 { compiler ? "ghc865", sources ? import ./nix/sources.nix }:
 
 let
-  config = {
-    packageOverrides = pkgs: rec {
-      haskell = pkgs.haskell // {
-        packages = pkgs.haskell.packages // {
-          "${compiler}" = pkgs.haskell.packages."${compiler}".override {
-            overrides = haskellPackagesNew: haskellPackagesOld: rec {
-              envy = haskellPackagesNew.callPackage ./nix/envy.nix {}; # old version (< 2) depended on by envy
-              hal = pkgs.haskell.lib.markUnbroken haskellPackagesOld.hal;
-              telegram-api = haskellPackagesNew.callPackage ./nix/haskell-telegram-api.nix {}; # patched version from git repo
-              halma = haskellPackagesNew.callPackage ./halma/halma.nix {};
-              halma-telegram-bot = haskellPackagesNew.callPackage ./halma-telegram-bot/halma-telegram-bot.nix {};
-              servant-server = pkgs.haskell.lib.dontCheck haskellPackagesOld.servant-server; # tests fail to compile
-            };
-          };
+  nonStaticPkgs =
+    with
+      { overlay = _: pkgs: { niv = import sources.niv {}; }; };
+    import sources.nixpkgs { overlays = [ overlay ]; };
+
+  staticPkgs = (import "${sources.static-haskell-nix}/survey/default.nix" { compiler = compiler; normalPkgs = nonStaticPkgs; }).pkgs;
+  haskellLib = staticPkgs.haskell.lib;
+
+  staticHaskellPkgs = staticPkgs.haskell.packages.${compiler}.override {
+    overrides = haskellPackagesNew: haskellPackagesOld: rec {
+      envy = haskellPackagesNew.callPackage ./nix/envy.nix {}; # old version (< 2) depended on by envy
+      hal = haskellLib.markUnbroken haskellPackagesOld.hal;
+      telegram-api = haskellPackagesNew.callPackage ./nix/haskell-telegram-api.nix {}; # patched version from git repo
+      halma = haskellPackagesNew.callPackage ./halma/halma.nix {};
+      halma-telegram-bot = haskellLib.overrideCabal
+        (haskellLib.justStaticExecutables (haskellPackagesNew.callPackage ./halma-telegram-bot/halma-telegram-bot.nix {}))
+        {
+          configureFlags = [
+            "--ghc-option=-optl=-static"
+            "--extra-lib-dirs=${staticPkgs.gmp6.override { withStatic = true; }}/lib"
+            "--extra-lib-dirs=${staticPkgs.zlib.static}/lib"
+            "--extra-lib-dirs=${staticPkgs.libffi.overrideAttrs (old: { dontDisableStatic = true; })}/lib"
+            #"--disable-executable-stripping"
+          ];
         };
-      };
+      servant-server = haskellLib.dontCheck haskellPackagesOld.servant-server; # tests fail to compile
     };
   };
 
-  pkgs =
-    with
-      { overlay = _: pkgs: { niv = import sources.niv {}; }; };
-    import sources.nixpkgs { overlays = [ overlay ]; inherit config; };
-
 in
-  { halma-telegram-bot = pkgs.haskell.packages.${compiler}.halma-telegram-bot;
+  { halma-telegram-bot = staticHaskellPkgs.halma-telegram-bot;
   }