add linux pkgs

flake.nix

@@ -14,11 +14,11 @@
 
   outputs = { nixpkgs, harec-src, hare-src, ... }:
     let
-      supportedSystems = [ "x86_64-darwin" "aarch64-darwin" ];
+      darwinSystems = [ "x86_64-darwin" "aarch64-darwin" ];
-      forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
+      linuxSystems = [ "x86_64-linux" "aarch64-linux" ];
     in
     {
-      devShells = forAllSystems (system:
+      devShells = nixpkgs.lib.genAttrs darwinSystems (system:
         let
           pkgs = nixpkgs.legacyPackages.${system};
           hare-as = pkgs.callPackage ./pkgs/darwin/hare-as.nix { };
@@ -27,6 +27,20 @@
           harec = pkgs.callPackage ./pkgs/darwin/harec.nix { inherit harec-src hare-as hare-cc hare-ld; };
           hare = pkgs.callPackage ./pkgs/darwin/hare.nix { inherit hare-src harec hare-as hare-cc hare-ld; };
         in
+        {
+          default = pkgs.mkShell {
+            buildInputs = [
+              harec
+              hare
+            ];
+          };
+        }) //
+        nixpkgs.lib.genAttrs linuxSystems (system:
+        let
+          pkgs = nixpkgs.legacyPackages.${system};
+          harec = pkgs.callPackage ./pkgs/linux/harec.nix { };
+          hare = pkgs.callPackage ./pkgs/linux/hare.nix { inherit harec; };
+        in
         {
           default = pkgs.mkShell {
             buildInputs = [

pkgs/linux/001-tzdata.patch

@@ -0,0 +1,28 @@
+diff --git a/time/chrono/+freebsd.ha b/time/chrono/+freebsd.ha
+index 26d78ab1..6861bfe8 100644
+--- a/time/chrono/+freebsd.ha
++++ b/time/chrono/+freebsd.ha
+@@ -2,7 +2,7 @@
+ // (c) Hare authors <https://harelang.org>
+ 
+ def LOCALTIME_PATH: str = "/etc/localtime";
+-def ZONEINFO_PREFIX: str = "/usr/share/zoneinfo/";
++def ZONEINFO_PREFIX: str = "@tzdata@/share/zoneinfo/";
+ 
+ // The filepath of the system's "leap-seconds.list" file, which contains UTC/TAI
+ // leap second data.
+diff --git a/time/chrono/+linux.ha b/time/chrono/+linux.ha
+index 600f606c..8d5617e2 100644
+--- a/time/chrono/+linux.ha
++++ b/time/chrono/+linux.ha
+@@ -2,8 +2,8 @@
+ // (c) Hare authors <https://harelang.org>
+ 
+ def LOCALTIME_PATH: str = "/etc/localtime";
+-def TZDB_PATH: str = "/usr/share/zoneinfo/";
++def TZDB_PATH: str = "@tzdata@/share/zoneinfo/";
+ 
+ // The filepath of the system's "leap-seconds.list" file, which contains UTC/TAI
+ // leap second data.
+-export def UTC_LEAPSECS_FILE: str = "/usr/share/zoneinfo/leap-seconds.list";
++export def UTC_LEAPSECS_PATH: str = "@tzdata@/share/zoneinfo/leap-seconds.list";

pkgs/linux/hare.nix

@@ -0,0 +1,70 @@
+{
+  stdenv,
+  lib,
+  makeWrapper,
+  scdoc,
+  substituteAll,
+  qbe,
+  harec,
+  binutils-unwrapped,
+  tzdata
+}:
+let
+  arch = stdenv.hostPlatform.uname.processor;
+  qbePlatform = {
+    x86_64 = "amd64_sysv";
+    aarch64 = "arm64";
+    riscv64 = "rv64";
+  }.${arch};
+in
+stdenv.mkDerivation  (finalAttrs: {
+  pname = "hare";
+  version = "0.24";
+  src = builtins.fetchGit {
+    url = "https://git.sr.ht/~sircmpwn/hare";
+    ref = "master";
+    rev = "0cd51184a7acdfd4ef20195d1648622b04477293";
+  };
+
+  patches = [
+  ];
+
+  nativeBuildInputs = [
+    harec
+    makeWrapper
+    qbe
+    scdoc
+  ];
+
+  buildInputs = [
+    binutils-unwrapped
+    harec
+    qbe
+    tzdata
+  ];
+
+  makeFlags = [
+    "HARECACHE=.harecache"
+    "PREFIX=${builtins.placeholder "out"}"
+    "ARCH=${arch}"
+    "VERSION=${finalAttrs.version}-nixpkgs"
+    "QBEFLAGS=-t${qbePlatform}"
+    "CC=${stdenv.cc.targetPrefix}cc"
+    "AS=${stdenv.cc.targetPrefix}as"
+    "LD=${stdenv.cc.targetPrefix}ld"
+    # Strip the variable of an empty $(SRCDIR)/hare/third-party, since nix does
+    # not follow the FHS.
+    "HAREPATH=$(SRCDIR)/hare/stdlib"
+  ];
+
+  postConfigure = ''
+    ln -s configs/linux.mk config.mk
+  '';
+
+  postFixup = ''
+    wrapProgram $out/bin/hare \
+      --prefix PATH : ${lib.makeBinPath [binutils-unwrapped harec qbe]}
+  '';
+
+  setupHook = ./setup-hook.sh;
+})

pkgs/linux/harec.nix

@@ -0,0 +1,34 @@
+{ lib, stdenv, qbe }:
+let
+  arch = stdenv.hostPlatform.uname.processor;
+  qbePlatform = {
+    x86_64 = "amd64_sysv";
+    aarch64 = "arm64";
+    riscv64 = "rv64";
+  }.${arch};
+in
+stdenv.mkDerivation  (finalAttrs: {
+  pname = "harec";
+  version = "0.24";
+  src = builtins.fetchGit {
+    url = "https://git.sr.ht/~sircmpwn/harec";
+    ref = "master";
+    rev = "3be960cf19ecf9528b8b3aaafc135229291e01b1";
+  };
+  buildInputs = [ qbe ];
+  nativeBuildInputs = [ qbe ];
+
+  makeFlags = [
+    "PREFIX=${builtins.placeholder "out"}"
+    "ARCH=${arch}"
+    "VERSION=${finalAttrs.version}-nixpkgs"
+    "QBEFLAGS=-t${qbePlatform}"
+    "CC=${stdenv.cc.targetPrefix}cc"
+    "AS=${stdenv.cc.targetPrefix}as"
+    "LD=${stdenv.cc.targetPrefix}ld"
+  ];
+
+  postConfigure = ''
+    ln -s configs/linux.mk config.mk
+  '';
+})

pkgs/linux/setup-hook.sh

@@ -0,0 +1,9 @@
+addHarepath () {
+    for haredir in third-party stdlib; do
+        if [[ -d "$1/src/hare/$haredir" ]]; then
+            addToSearchPath HAREPATH "$1/src/hare/$haredir"
+        fi
+    done
+}
+
+addEnvHooks "$hostOffset" addHarepath