use addCSourceFile

Author: mattnite

build.zig

@@ -194,11 +194,14 @@ fn addTestSuite(
 
                     const test_payload = b.addExecutable(.{
                         .name = std.fs.path.stem(entry.basename),
-                        .root_source_file = b.path(b.fmt("testsuite/{s}", .{entry.path})),
                         .target = custom_target,
                         .optimize = config.optimize,
                         .strip = false,
                     });
+                    test_payload.addCSourceFile(.{
+                        .file = b.path(b.fmt("testsuite/{s}", .{entry.path})),
+                        .flags = &.{},
+                    });
                     test_payload.bundle_compiler_rt = false;
                     test_payload.addIncludePath(b.path("testsuite"));
                     test_payload.setLinkerScriptPath(b.path("linker.ld"));

src/testrunner.zig

@@ -103,7 +103,7 @@ fn validateSystemAndExit(exit_mode: ExitMode) noreturn {
         std.debug.print("test {s} failed.\n", .{ts.options.name});
     }
 
-    std.os.exit(if (ok) 0x00 else 0x01);
+    std.process.exit(if (ok) 0x00 else 0x01);
 }
 
 pub fn main() !u8 {
@@ -352,16 +352,16 @@ const IO = struct {
     fn lobyte(val: *u16) *u8 {
         const bits: *[2]u8 = @ptrCast(val);
         return switch (comptime builtin.cpu.arch.endian()) {
-            .Big => return &bits[1],
-            .Little => return &bits[0],
+            .big => return &bits[1],
+            .little => return &bits[0],
         };
     }
 
     fn hibyte(val: *u16) *u8 {
         const bits: *[2]u8 = @ptrCast(val);
         return switch (comptime builtin.cpu.arch.endian()) {
-            .Big => return &bits[0],
-            .Little => return &bits[1],
+            .big => return &bits[0],
+            .little => return &bits[1],
         };
     }