Add support for Linux arm64 (#446)

hak/keytar/build.ts

@@ -27,7 +27,7 @@ export default async function buildKeytar(hakEnv: HakEnv, moduleInfo: Dependency
     await new Promise<void>((resolve, reject) => {
         const proc = childProcess.spawn(
             path.join(moduleInfo.nodeModuleBinDir, "node-gyp" + (hakEnv.isWin() ? ".cmd" : "")),
-            ["rebuild"],
+            ["rebuild", "--arch", hakEnv.getTargetArch()],
             {
                 cwd: moduleInfo.moduleBuildDir,
                 env,

hak/matrix-seshat/build.ts

@@ -205,14 +205,15 @@ async function buildSqlCipherUnix(hakEnv: HakEnv, moduleInfo: DependencyInfo): P
 
     const cflags = ["-DSQLITE_HAS_CODEC"];
 
-    if (!hakEnv.isHost()) {
+    // If the caller has specified CFLAGS then we shouldn't specify target
+    // as their compiler may be incompatible (gcc)
+    if (!hakEnv.isHost() && !process.env.CFLAGS) {
         // `clang` uses more logical option naming.
         cflags.push(`--target=${hakEnv.getTargetId()}`);
     }
 
-    if (cflags.length) {
-        args.push(`CFLAGS=${cflags.join(" ")}`);
-    }
+    if (process.env.CFLAGS) cflags.unshift(process.env.CFLAGS);
+    args.push(`CFLAGS=${cflags.join(" ")}`);
 
     const ldflags: string[] = [];
 
@@ -222,6 +223,7 @@ async function buildSqlCipherUnix(hakEnv: HakEnv, moduleInfo: DependencyInfo): P
     }
 
     if (ldflags.length) {
+        if (process.env.LDFLAGS) ldflags.unshift(process.env.LDFLAGS);
         args.push(`LDFLAGS=${ldflags.join(" ")}`);
     }
 

hak/matrix-seshat/check.ts

@@ -70,7 +70,7 @@ export default async function (hakEnv: HakEnv, moduleInfo: DependencyInfo): Prom
     await new Promise((resolve, reject) => {
         const rustc = childProcess.execFile(
             "rustc",
-            ["--target", hakEnv.getTargetId(), "-o", "tmp", "-"],
+            ["--target", hakEnv.getTargetId(), "--emit=obj", "-o", "tmp", "-"],
             (err, out) => {
                 if (err) {
                     reject(
@@ -86,6 +86,8 @@ export default async function (hakEnv: HakEnv, moduleInfo: DependencyInfo): Prom
             },
         );
         rustc.stdin!.write("fn main() {}");
+        rustc.stdout!.pipe(process.stdout);
+        rustc.stderr!.pipe(process.stderr);
         rustc.stdin!.end();
     });
 }