Commit 3f57468c8b

@@ -2857,7 +2857,7 @@ pub fn addCCArgs(
     try argv.appendSlice(&[_][]const u8{ "-target", llvm_triple });
 
     switch (ext) {
-        .c, .cpp, .h => {
+        .c, .cpp, .m, .h => {
             try argv.appendSlice(&[_][]const u8{
                 "-nostdinc",
                 "-fno-spell-checking",
@@ -3148,6 +3148,7 @@ pub const FileExt = enum {
     c,
     cpp,
     h,
+    m,
     ll,
     bc,
     assembly,
@@ -3159,7 +3160,7 @@ pub const FileExt = enum {
 
     pub fn clangSupportsDepFile(ext: FileExt) bool {
         return switch (ext) {
-            .c, .cpp, .h => true,
+            .c, .cpp, .h, .m => true,
 
             .ll,
             .bc,
@@ -3193,6 +3194,10 @@ pub fn hasCppExt(filename: []const u8) bool {
         mem.endsWith(u8, filename, ".cxx");
 }
 
+pub fn hasObjCExt(filename: []const u8) bool {
+    return mem.endsWith(u8, filename, ".m");
+}
+
 pub fn hasAsmExt(filename: []const u8) bool {
     return mem.endsWith(u8, filename, ".s") or mem.endsWith(u8, filename, ".S");
 }
@@ -3229,6 +3234,8 @@ pub fn classifyFileExt(filename: []const u8) FileExt {
         return .c;
     } else if (hasCppExt(filename)) {
         return .cpp;
+    } else if (hasObjCExt(filename)) {
+        return .m;
     } else if (mem.endsWith(u8, filename, ".ll")) {
         return .ll;
     } else if (mem.endsWith(u8, filename, ".bc")) {
@@ -3252,6 +3259,7 @@ pub fn classifyFileExt(filename: []const u8) FileExt {
 
 test "classifyFileExt" {
     try std.testing.expectEqual(FileExt.cpp, classifyFileExt("foo.cc"));
+    try std.testing.expectEqual(FileExt.m, classifyFileExt("foo.m"));
     try std.testing.expectEqual(FileExt.unknown, classifyFileExt("foo.nim"));
     try std.testing.expectEqual(FileExt.shared_library, classifyFileExt("foo.so"));
     try std.testing.expectEqual(FileExt.shared_library, classifyFileExt("foo.so.1"));

@@ -290,6 +290,7 @@ const usage_build_generic =
     \\                      .c    C source code (requires LLVM extensions)
     \\                    .cpp    C++ source code (requires LLVM extensions)
     \\                            Other C++ extensions: .C .cc .cxx
+    \\                      .m    Objective-C source code (requires LLVM extensions)
     \\
     \\General Options:
     \\  -h, --help                Print this help and exit
@@ -1072,7 +1073,7 @@ fn buildOutputType(
                     .object, .static_library, .shared_library => {
                         try link_objects.append(arg);
                     },
-                    .assembly, .c, .cpp, .h, .ll, .bc => {
+                    .assembly, .c, .cpp, .h, .ll, .bc, .m => {
                         try c_source_files.append(.{
                             .src_path = arg,
                             .extra_flags = try arena.dupe([]const u8, extra_cflags.items),
@@ -1135,7 +1136,7 @@ fn buildOutputType(
                     .positional => {
                         const file_ext = Compilation.classifyFileExt(mem.spanZ(it.only_arg));
                         switch (file_ext) {
-                            .assembly, .c, .cpp, .ll, .bc, .h => try c_source_files.append(.{ .src_path = it.only_arg }),
+                            .assembly, .c, .cpp, .ll, .bc, .h, .m => try c_source_files.append(.{ .src_path = it.only_arg }),
                             .unknown, .shared_library, .object, .static_library => {
                                 try link_objects.append(it.only_arg);
                             },