[native_toolchain_c] Setup Linux X64 toolchain for non-X64 hosts. (#164)

Author: rmacnak-google

pkgs/native_toolchain_c/lib/src/cbuilder/compiler_resolver.dart

@@ -74,6 +74,8 @@ class CompilerResolver {
           return aarch64LinuxGnuGcc;
         case Architecture.ia32:
           return i686LinuxGnuGcc;
+        case Architecture.x64:
+          return x86_64LinuxGnuGcc;
         case Architecture.riscv64:
           return riscv64LinuxGnuGcc;
       }
@@ -160,6 +162,8 @@ class CompilerResolver {
           return aarch64LinuxGnuGccAr;
         case Architecture.ia32:
           return i686LinuxGnuGccAr;
+        case Architecture.x64:
+          return x86_64LinuxGnuGccAr;
         case Architecture.riscv64:
           return riscv64LinuxGnuGccAr;
       }

pkgs/native_toolchain_c/lib/src/native_toolchain/gcc.dart

@@ -7,15 +7,15 @@ import 'package:native_assets_cli/native_assets_cli.dart';
 import '../tool/tool.dart';
 import '../tool/tool_resolver.dart';
 
-/// The GNU Compiler Collection.
+/// The GNU Compiler Collection for [Architecture.current].
 ///
 /// https://gcc.gnu.org/
 final gcc = Tool(name: 'GCC');
 
-/// The GNU GCC archiver.
+/// The GNU GCC archiver for [Architecture.current].
 final gnuArchiver = Tool(name: 'GNU archiver');
 
-/// The GNU linker.
+/// The GNU linker for [Architecture.current].
 ///
 /// https://ftp.gnu.org/old-gnu/Manuals/ld-2.9.1/ld.html
 final gnuLinker = Tool(name: 'GNU linker');
@@ -29,6 +29,15 @@ final i686LinuxGnuGccAr = _gnuArchiver('i686-linux-gnu');
 /// [gnuLinker] with [Tool.defaultResolver] for [Architecture.ia32].
 final i686LinuxGnuLd = _gnuLinker('i686-linux-gnu');
 
+/// [gcc] with [Tool.defaultResolver] for [Architecture.x64].
+final x86_64LinuxGnuGcc = _gcc('x86_64-linux-gnu');
+
+/// [gnuArchiver] with [Tool.defaultResolver] for [Architecture.x64].
+final x86_64LinuxGnuGccAr = _gnuArchiver('x86_64-linux-gnu');
+
+/// [gnuLinker] with [Tool.defaultResolver] for [Architecture.x64].
+final x86_64LinuxGnuLd = _gnuLinker('x86_64-linux-gnu');
+
 /// [gcc] with [Tool.defaultResolver] for [Architecture.arm].
 final armLinuxGnueabihfGcc = _gcc('arm-linux-gnueabihf');
 

pkgs/native_toolchain_c/test/native_toolchain/gcc_test.dart

@@ -60,6 +60,12 @@ void main() {
     i686LinuxGnuLd,
   ]);
 
+  testToolSet('x86_64LinuxGnuGcc', [
+    x86_64LinuxGnuGcc,
+    x86_64LinuxGnuGccAr,
+    x86_64LinuxGnuLd,
+  ]);
+
   testToolSet('riscv64LinuxGnuGcc', [
     riscv64LinuxGnuGcc,
     riscv64LinuxGnuGccAr,

pkgs/native_toolchain_c/test/native_toolchain/recognizer_test.dart

@@ -42,6 +42,9 @@ void main() async {
     RecognizerTest(riscv64LinuxGnuGcc, CompilerRecognizer.new),
     RecognizerTest(riscv64LinuxGnuGccAr, ArchiverRecognizer.new),
     RecognizerTest(riscv64LinuxGnuLd, LinkerRecognizer.new),
+    RecognizerTest(x86_64LinuxGnuGcc, CompilerRecognizer.new),
+    RecognizerTest(x86_64LinuxGnuGccAr, ArchiverRecognizer.new),
+    RecognizerTest(x86_64LinuxGnuLd, LinkerRecognizer.new),
   ];
 
   for (final test in tests) {