From e89e047c5af33ac47dabbcfdc12305d544a13ade Mon Sep 17 00:00:00 2001
From: Alex Auvolat <alex@adnab.me>
Date: Fri, 14 Oct 2022 15:45:37 +0200
Subject: [PATCH] Fix i386 build with custom toolchain (armv6 unknown state)

---
 default.nix       |  5 ++++-
 nix/common.nix    |  8 ++++----
 nix/compile.nix   | 48 ++++++++++++++++++++---------------------------
 nix/toolchain.nix | 10 ++++++----
 4 files changed, 34 insertions(+), 37 deletions(-)

diff --git a/default.nix b/default.nix
index 170b1f21..efbc4c86 100644
--- a/default.nix
+++ b/default.nix
@@ -43,10 +43,13 @@ in {
       target = "x86_64-unknown-linux-musl";
       features = [
         "garage/bundled-libs"
-        "garage/sled"
         "garage/k2v"
+        "garage/sled"
         "garage/lmdb"
         "garage/sqlite"
+        "garage_db/sled"
+        "garage_db/lmdb"
+        "garage_db/sqlite"
       ];
     });
   };
diff --git a/nix/common.nix b/nix/common.nix
index 031a75c0..2b9cc751 100644
--- a/nix/common.nix
+++ b/nix/common.nix
@@ -8,12 +8,12 @@ rec {
     #sha256 = "1xy9zpypqfxs5gcq5dcla4bfkhxmh5nzn9dyqkr03lqycm9wg5cr";
 
     # NixOS 22.05
-    url = "https://github.com/NixOS/nixpkgs/archive/refs/tags/22.05.zip";
-    sha256 = "0d643wp3l77hv2pmg2fi7vyxn4rwy0iyr8djcw1h5x72315ck9ik";
+    #url = "https://github.com/NixOS/nixpkgs/archive/refs/tags/22.05.zip";
+    #sha256 = "0d643wp3l77hv2pmg2fi7vyxn4rwy0iyr8djcw1h5x72315ck9ik";
 
     # As of 2022-10-13
-    #url = "https://github.com/NixOS/nixpkgs/archive/a3073c49bc0163fea6a121c276f526837672b555.zip";
-    #sha256 = "1bz632psfbpmicyzjb8b4265y50shylccvfm6ry6mgnv5hvz324s";
+    url = "https://github.com/NixOS/nixpkgs/archive/a3073c49bc0163fea6a121c276f526837672b555.zip";
+    sha256 = "1bz632psfbpmicyzjb8b4265y50shylccvfm6ry6mgnv5hvz324s";
   };
   cargo2nixSrc = fetchGit {
     # As of 2022-10-14: (TODO)
diff --git a/nix/compile.nix b/nix/compile.nix
index 62eb956a..9406bb44 100644
--- a/nix/compile.nix
+++ b/nix/compile.nix
@@ -13,9 +13,10 @@ let
   log = v: builtins.trace v v;
 
   pkgs = import pkgsSrc {
-    inherit system; 
+    inherit system;
     crossSystem = {
       config = target;
+      isStatic = true;
     };
     overlays = [ cargo2nixOverlay ];
   };
@@ -30,26 +31,22 @@ let
    we emulate the structure of the Rust object created by rustOverlay.
    In practise, rustOverlay ships rustc+cargo in a single derivation while
    NixOS ships them in separate ones. We reunite them with symlinkJoin.
-   */
-   /*
-  rustToolchain = {
-    rustc = pkgs.symlinkJoin {
-      name = "rust-channel";
-      paths = [ 
-        pkgs.rustPlatform.rust.cargo
-        pkgs.rustPlatform.rust.rustc
-      ];
-    };
-    clippy = pkgs.symlinkJoin {
-      name = "clippy-channel";
-      paths = [ 
-        pkgs.rustPlatform.rust.cargo
-        pkgs.rustPlatform.rust.rustc
-        pkgs.clippy
-      ];
-    };
-  }.${compiler};
   */
+  toolchainOptions =
+    if target == "x86_64-unknown-linux-musl" || target == "aarch64-unknown-linux-musl" then {
+      rustVersion = "1.63.0";
+      extraRustComponents = [ "clippy" ];
+    } else {
+      rustToolchain = pkgs.symlinkJoin {
+        name = "rust-static-toolchain-${target}";
+        paths = [
+          pkgs.rustPlatform.rust.cargo
+          pkgs.rustPlatform.rust.rustc
+          # clippy not needed, it only runs on amd64
+        ];
+      };
+    };
+
 
   buildEnv = (drv: {
     rustc = drv.setBuildEnv;
@@ -57,7 +54,7 @@ let
       ${drv.setBuildEnv or "" }
       echo
       echo --- BUILDING WITH CLIPPY ---
-      echo 
+      echo
 
       export NIX_RUST_BUILD_FLAGS="''${NIX_RUST_BUILD_FLAGS} --deny warnings"
       export RUSTC="''${CLIPPY_DRIVER}"
@@ -215,12 +212,7 @@ let
     else target;
 
 in
-  pkgs.rustBuilder.makePackageSet {
+  pkgs.rustBuilder.makePackageSet ({
     inherit release packageFun packageOverrides codegenOpts rootFeatures;
-
-    #inherit rustToolchain;
-    rustVersion = "1.63.0";
-
     target = rustTarget;
-    extraRustComponents = [ "clippy" ];
-  }
+  } // toolchainOptions)
diff --git a/nix/toolchain.nix b/nix/toolchain.nix
index d6fe295a..079fcf13 100644
--- a/nix/toolchain.nix
+++ b/nix/toolchain.nix
@@ -6,14 +6,17 @@ with import ./common.nix;
 
 let
   platforms = [
-    "x86_64-unknown-linux-musl"
+    #"x86_64-unknown-linux-musl"
     "i686-unknown-linux-musl"
-    "aarch64-unknown-linux-musl"
+    #"aarch64-unknown-linux-musl"
     "armv6l-unknown-linux-musleabihf"
   ];
   pkgsList = builtins.map (target: import pkgsSrc { 
     inherit system; 
-    crossSystem = { config = target; };
+    crossSystem = {
+      config = target;
+      isStatic = true;
+    };
     overlays = [ cargo2nixOverlay ];
   }) platforms;
   pkgsHost = import pkgsSrc {};
@@ -25,7 +28,6 @@ in
   lib.flatten (builtins.map (pkgs: [
      pkgs.rustPlatform.rust.rustc
      pkgs.rustPlatform.rust.cargo
-     pkgs.clippy
      pkgs.buildPackages.stdenv.cc
   ]) pkgsList) ++ [
     kaniko