Rebase + two fixes.

Author: Felix "xq" Queißner

test/link/macho/tbdv3/build.zig

@@ -23,8 +23,9 @@ fn add(b: *std.Build, test_step: *std.Build.Step, optimize: std.builtin.Optimize
         .optimize = optimize,
         .target = target,
     });
-    lib.addCSourceFile("a.c", &.{});
+    lib.addCSourceFile(.{ .file = .{ .path = "a.c" }, .flags = &.{} });
     lib.linkLibC();
+    lib.forceEmit(.bin); // will be referenced by the tbd file
 
     const tbd_file = b.addWriteFile("liba.tbd",
         \\--- !tapi-tbd-v3
@@ -43,7 +44,7 @@ fn add(b: *std.Build, test_step: *std.Build.Step, optimize: std.builtin.Optimize
         .optimize = optimize,
         .target = target,
     });
-    exe.addCSourceFile("main.c", &[0][]const u8{});
+    exe.addCSourceFile(.{ .file = .{ .path = "main.c" }, .flags = &[0][]const u8{} });
     exe.linkSystemLibrary("a");
     exe.addLibraryPathDirectorySource(tbd_file.getDirectorySource());
     exe.addRPathDirectorySource(lib.getOutputDirectorySource());

test/standalone/coff_dwarf/build.zig

@@ -23,7 +23,7 @@ pub fn build(b: *std.Build) void {
         .optimize = optimize,
         .target = target,
     });
-    lib.addCSourceFile(.{ .file = "shared_lib.c", .flags = &.{"-gdwarf"} });
+    lib.addCSourceFile(.{ .file = .{ .path = "shared_lib.c" }, .flags = &.{"-gdwarf"} });
     lib.linkLibC();
     exe.linkLibrary(lib);