DefaultGODEBUG string  // default GODEBUG setting, for main packages

        // Source files
        GoFiles           []string   // .go source files (excluding CgoFiles, TestGoFiles, XTestGoFiles)
        CgoFiles          []string   // .go source files that import "C"
        CompiledGoFiles   []string   // .go files presented to compiler (when using -compiled)

	} else {
		ptest = p
	}

	// External test package.
	if len(p.XTestGoFiles) > 0 {
		pxtest = &Package{
			PackagePublic: PackagePublic{
				Name:       p.Name + "_test",
				ImportPath: p.ImportPath + "_test",
				Root:       p.Root,
				Dir:        p.Dir,
				Goroot:     p.Goroot,
				GoFiles:    p.XTestGoFiles,
				Imports:    p.XTestImports,
				ForTest:    p.ImportPath,
				Module:     p.Module,

		// The others are.
		keep := func(list []string) {
			for _, f := range list {
				packageFile[f] = true
			}
		}
		keep(p.GoFiles)
		keep(p.CgoFiles)
		keep(p.TestGoFiles)
		keep(p.XTestGoFiles)
	}

	_, elem := filepath.Split(p.Dir)
	var allRemove []string

	// Remove dir-named executable only if this is package main.
	if p.Name == "main" {
		allRemove = append(allRemove,
			elem,

				embedMap = embedPos
				directives = &p.Directives
			} else {
				// Ignore Imports and Embeds from cgo files if cgo is disabled.
				fileList = &p.IgnoredGoFiles
			}
		case isXTest:
			fileList = &p.XTestGoFiles
			importMap = xTestImportPos
			embedMap = xTestEmbedPos
			directives = &p.XTestDirectives
		case isTest:
			fileList = &p.TestGoFiles
			importMap = testImportPos
			embedMap = testEmbedPos