| TabsError | Distribution.InstalledPackageInfo | 
| tags | Distribution.TestSuite | 
| takeWhileEndLE | Distribution.Simple.Utils | 
| targetBuildDepends | Distribution.PackageDescription | 
| targetBuildRenaming | Distribution.PackageDescription | 
| tarProgram | Distribution.Simple.Program.Builtin, Distribution.Simple.Program | 
| TempFileOptions |  | 
| 1 (Type/Class) | Distribution.Simple.Utils | 
| 2 (Data Constructor) | Distribution.Simple.Utils | 
| TemplateHaskell | Language.Haskell.Extension, Distribution.Simple | 
| Test |  | 
| 1 (Type/Class) | Distribution.TestSuite | 
| 2 (Data Constructor) | Distribution.TestSuite | 
| test | Distribution.Simple.Test | 
| testBuildInfo | Distribution.PackageDescription | 
| testCommand | Distribution.Simple.Setup | 
| TestComponentLocalBuildInfo | Distribution.Simple.LocalBuildInfo | 
| testDistPref | Distribution.Simple.Setup | 
| testedWith | Distribution.PackageDescription | 
| testEnabled | Distribution.PackageDescription | 
| TestFlags |  | 
| 1 (Type/Class) | Distribution.Simple.Setup | 
| 2 (Data Constructor) | Distribution.Simple.Setup | 
| testGroup | Distribution.TestSuite | 
| testHook | Distribution.Simple.UserHooks, Distribution.Simple | 
| testHumanLog | Distribution.Simple.Setup | 
| TestInstance |  | 
| 1 (Type/Class) | Distribution.TestSuite | 
| 2 (Data Constructor) | Distribution.TestSuite | 
| testInterface | Distribution.PackageDescription | 
| testKeepTix | Distribution.Simple.Setup | 
| TestLog | Distribution.Simple.Test.Log | 
| TestLogs | Distribution.Simple.Test.Log | 
| testLogs | Distribution.Simple.Test.Log | 
| testMachineLog | Distribution.Simple.Setup | 
| testModules | Distribution.PackageDescription | 
| testName |  | 
| 1 (Function) | Distribution.PackageDescription | 
| 2 (Function) | Distribution.Simple.Test.Log | 
| testOptions | Distribution.Simple.Setup | 
| testOptionsReturned | Distribution.Simple.Test.Log | 
| testResult | Distribution.Simple.Test.Log | 
| TestShowDetails | Distribution.Simple.Setup | 
| testShowDetails | Distribution.Simple.Setup | 
| TestSuite |  | 
| 1 (Type/Class) | Distribution.PackageDescription | 
| 2 (Data Constructor) | Distribution.PackageDescription | 
| TestSuiteExeV10 | Distribution.PackageDescription | 
| testSuiteFieldDescrs | Distribution.PackageDescription.Parse | 
| TestSuiteInterface | Distribution.PackageDescription | 
| TestSuiteLibV09 | Distribution.PackageDescription | 
| TestSuiteLog |  | 
| 1 (Type/Class) | Distribution.Simple.Test.Log | 
| 2 (Data Constructor) | Distribution.Simple.Test.Log | 
| testSuiteLogPath | Distribution.Simple.Test.Log | 
| testSuiteName | Distribution.Simple.Test.Log | 
| TestSuiteNameVar | Distribution.Simple.InstallDirs, Distribution.Simple.LocalBuildInfo | 
| TestSuiteResultVar | Distribution.Simple.InstallDirs, Distribution.Simple.LocalBuildInfo | 
| testSuites |  | 
| 1 (Function) | Distribution.PackageDescription | 
| 2 (Function) | Distribution.Simple.Test.Log | 
| TestSuiteUnsupported | Distribution.PackageDescription | 
| TestType | Distribution.PackageDescription | 
| testType | Distribution.PackageDescription | 
| TestTypeExe | Distribution.PackageDescription | 
| TestTypeLib | Distribution.PackageDescription | 
| TestTypeUnknown | Distribution.PackageDescription | 
| testVerbosity | Distribution.Simple.Setup | 
| Text | Distribution.Text | 
| thisPackageVersion | Distribution.Package, Distribution.Make, Distribution.Simple | 
| ThisVersion | Distribution.Version, Distribution.Simple | 
| thisVersion | Distribution.Version, Distribution.Simple | 
| tixDir | Distribution.Simple.Hpc | 
| tixFilePath | Distribution.Simple.Hpc | 
| toFilePath | Distribution.ModuleName | 
| toFlag | Distribution.Simple.Setup | 
| toNubList | Distribution.Utils.NubList | 
| toNubListR | Distribution.Utils.NubList | 
| toPathTemplate | Distribution.Simple.InstallDirs, Distribution.Simple.LocalBuildInfo | 
| topHandler | Distribution.Simple.Utils | 
| topHandlerWith | Distribution.Simple.Utils | 
| topologicalOrder | Distribution.Simple.PackageIndex | 
| toUTF8 | Distribution.Simple.Utils | 
| toVersionIntervals | Distribution.Version, Distribution.Simple | 
| TraditionalRecordSyntax | Language.Haskell.Extension, Distribution.Simple | 
| TransformListComp | Language.Haskell.Extension, Distribution.Simple | 
| trueArg | Distribution.Simple.Setup | 
| trusted | Distribution.InstalledPackageInfo | 
| Trustworthy | Language.Haskell.Extension, Distribution.Simple | 
| tryFindPackageDesc | Distribution.Simple.Utils | 
| tryGetConfigStateFile | Distribution.Simple.Configure | 
| tryGetPersistBuildConfig | Distribution.Simple.Configure | 
| tryIO | Distribution.Compat.Exception | 
| TupleSections | Language.Haskell.Extension, Distribution.Simple | 
| TypeFamilies | Language.Haskell.Extension, Distribution.Simple | 
| TypeOperators | Language.Haskell.Extension, Distribution.Simple | 
| TypeSynonymInstances | Language.Haskell.Extension, Distribution.Simple |