| backpackSupported | Distribution.Simple.Compiler, Distribution.Simple | 
| Bahyph | Distribution.SPDX.LicenseId, Distribution.SPDX | 
| BangPatterns | Language.Haskell.Extension, Distribution.Simple | 
| Barr | Distribution.SPDX.LicenseId, Distribution.SPDX | 
| Bazaar | Distribution.Types.SourceRepo, Distribution.PackageDescription | 
| Beerware | Distribution.SPDX.LicenseId, Distribution.SPDX | 
| bench | Distribution.Simple.Bench | 
| BenchComponentLocalBuildInfo | Distribution.Types.ComponentLocalBuildInfo, Distribution.Simple.LocalBuildInfo | 
| benchHook | Distribution.Simple.UserHooks, Distribution.Simple | 
| Benchmark |  | 
| 1 (Type/Class) | Distribution.Types.Benchmark, Distribution.Types.Benchmark.Lens, Distribution.Types.Lens, Distribution.PackageDescription | 
| 2 (Data Constructor) | Distribution.Types.Benchmark, Distribution.PackageDescription | 
| benchmarkBuildInfo |  | 
| 1 (Function) | Distribution.Types.Benchmark, Distribution.PackageDescription | 
| 2 (Function) | Distribution.Types.Benchmark.Lens, Distribution.Types.Lens | 
| benchmarkCommand | Distribution.Simple.Setup | 
| benchmarkDistPref | Distribution.Simple.Setup | 
| BenchmarkExeV10 | Distribution.Types.BenchmarkInterface, Distribution.PackageDescription | 
| benchmarkFieldGrammar | Distribution.PackageDescription.FieldGrammar | 
| BenchmarkFlags |  | 
| 1 (Type/Class) | Distribution.Simple.Setup | 
| 2 (Data Constructor) | Distribution.Simple.Setup | 
| BenchmarkInterface | Distribution.Types.BenchmarkInterface, Distribution.PackageDescription | 
| benchmarkInterface |  | 
| 1 (Function) | Distribution.Types.Benchmark, Distribution.PackageDescription | 
| 2 (Function) | Distribution.Types.Benchmark.Lens, Distribution.Types.Lens | 
| benchmarkModules | Distribution.Types.Benchmark, Distribution.PackageDescription | 
| benchmarkModulesAutogen | Distribution.Types.Benchmark, Distribution.PackageDescription | 
| benchmarkName |  | 
| 1 (Function) | Distribution.Types.Benchmark, Distribution.PackageDescription | 
| 2 (Function) | Distribution.Types.Benchmark.Lens, Distribution.Types.Lens | 
| BenchmarkNameVar | Distribution.Simple.InstallDirs.Internal, Distribution.Simple.InstallDirs, Distribution.Simple.LocalBuildInfo | 
| benchmarkOptions | Distribution.Simple.Setup | 
| benchmarkOptions' | Distribution.Simple.Setup | 
| benchmarks |  | 
| 1 (Function) | Distribution.Types.PackageDescription, Distribution.PackageDescription | 
| 2 (Function) | Distribution.Types.PackageDescription.Lens, Distribution.Types.Lens | 
| benchmarksRequested | Distribution.Types.ComponentRequestedSpec | 
| BenchmarkStanza |  | 
| 1 (Type/Class) | Distribution.PackageDescription.FieldGrammar | 
| 2 (Data Constructor) | Distribution.PackageDescription.FieldGrammar | 
| benchmarkStanzaBenchmarkModule | Distribution.PackageDescription.FieldGrammar | 
| benchmarkStanzaBenchmarkType | Distribution.PackageDescription.FieldGrammar | 
| benchmarkStanzaBuildInfo | Distribution.PackageDescription.FieldGrammar | 
| benchmarkStanzaMainIs | Distribution.PackageDescription.FieldGrammar | 
| BenchmarkType | Distribution.Types.BenchmarkType, Distribution.PackageDescription | 
| benchmarkType | Distribution.Types.Benchmark, Distribution.PackageDescription | 
| BenchmarkTypeExe | Distribution.Types.BenchmarkType, Distribution.PackageDescription | 
| BenchmarkTypeUnknown | Distribution.Types.BenchmarkType, Distribution.PackageDescription | 
| BenchmarkUnsupported | Distribution.Types.BenchmarkInterface, Distribution.PackageDescription | 
| benchmarkVerbosity | Distribution.Simple.Setup | 
| between | Distribution.Compat.Parsing, Distribution.Compat.CharParsing | 
| Binary | Distribution.Compat.Binary, Distribution.Compat.Prelude.Internal | 
| binaryGetMD5 | Distribution.Utils.MD5 | 
| BinaryLiterals | Language.Haskell.Extension, Distribution.Simple | 
| binaryPutMD5 | Distribution.Utils.MD5 | 
| bindir | Distribution.Simple.InstallDirs, Distribution.Simple.LocalBuildInfo | 
| BindirVar | Distribution.Simple.InstallDirs.Internal, Distribution.Simple.InstallDirs, Distribution.Simple.LocalBuildInfo | 
| Bison_exception_2_2 | Distribution.SPDX.LicenseExceptionId, Distribution.SPDX | 
| bitReverse16 | Distribution.Compat.Binary | 
| bitReverse32 | Distribution.Compat.Binary | 
| bitReverse64 | Distribution.Compat.Binary | 
| bitReverse8 | Distribution.Compat.Binary | 
| BitTorrent_1_0 | Distribution.SPDX.LicenseId, Distribution.SPDX | 
| BitTorrent_1_1 | Distribution.SPDX.LicenseId, Distribution.SPDX | 
| Blessing | Distribution.SPDX.LicenseId, Distribution.SPDX | 
| BlockArguments | Language.Haskell.Extension, Distribution.Simple | 
| BlueOak_1_0_0 | Distribution.SPDX.LicenseId, Distribution.SPDX | 
| blurFieldGrammar | Distribution.FieldGrammar.Class, Distribution.FieldGrammar | 
| bol_section | Distribution.Fields.Lexer | 
| Bool | Distribution.Compat.Prelude.Internal | 
| booleanFieldDef | Distribution.FieldGrammar.Class, Distribution.FieldGrammar | 
| BooleanFlag | Distribution.Simple.Flag, Distribution.Simple.Setup | 
| BoolOpt | Distribution.Simple.Command | 
| boolOpt |  | 
| 1 (Function) | Distribution.Simple.Command | 
| 2 (Function) | Distribution.Simple.Setup | 
| boolOpt' |  | 
| 1 (Function) | Distribution.Simple.Command | 
| 2 (Function) | Distribution.Simple.Setup | 
| Bootloader_exception | Distribution.SPDX.LicenseExceptionId, Distribution.SPDX | 
| Borceux | Distribution.SPDX.LicenseId, Distribution.SPDX | 
| Bound | Distribution.Types.VersionInterval, Distribution.Version, Distribution.Simple | 
| Bounded | Distribution.Compat.Prelude.Internal | 
| break | Distribution.Compat.Prelude.Internal | 
| breakMaybe | Distribution.Utils.Generic | 
| broken | Distribution.Compat.Graph | 
| brokenPackages | Distribution.Simple.PackageIndex | 
| BSD2 | Distribution.License, Distribution.Make, Distribution.Simple | 
| BSD3 | Distribution.License, Distribution.Make, Distribution.Simple | 
| BSD4 | Distribution.License, Distribution.Make, Distribution.Simple | 
| BSD_1_Clause | Distribution.SPDX.LicenseId, Distribution.SPDX | 
| BSD_2_Clause | Distribution.SPDX.LicenseId, Distribution.SPDX | 
| BSD_2_Clause_FreeBSD | Distribution.SPDX.LicenseId, Distribution.SPDX | 
| BSD_2_Clause_NetBSD | Distribution.SPDX.LicenseId, Distribution.SPDX | 
| BSD_2_Clause_Patent | Distribution.SPDX.LicenseId, Distribution.SPDX | 
| BSD_3_Clause | Distribution.SPDX.LicenseId, Distribution.SPDX | 
| BSD_3_Clause_Attribution | Distribution.SPDX.LicenseId, Distribution.SPDX | 
| BSD_3_Clause_Clear | Distribution.SPDX.LicenseId, Distribution.SPDX | 
| BSD_3_Clause_LBNL | Distribution.SPDX.LicenseId, Distribution.SPDX | 
| BSD_3_Clause_No_Nuclear_License | Distribution.SPDX.LicenseId, Distribution.SPDX | 
| BSD_3_Clause_No_Nuclear_License_2014 | Distribution.SPDX.LicenseId, Distribution.SPDX | 
| BSD_3_Clause_No_Nuclear_Warranty | Distribution.SPDX.LicenseId, Distribution.SPDX | 
| BSD_3_Clause_Open_MPI | Distribution.SPDX.LicenseId, Distribution.SPDX | 
| BSD_4_Clause | Distribution.SPDX.LicenseId, Distribution.SPDX | 
| BSD_4_Clause_UC | Distribution.SPDX.LicenseId, Distribution.SPDX | 
| BSD_Protection | Distribution.SPDX.LicenseId, Distribution.SPDX | 
| BSD_Source_Code | Distribution.SPDX.LicenseId, Distribution.SPDX | 
| BSL_1_0 | Distribution.SPDX.LicenseId, Distribution.SPDX | 
| bugReports |  | 
| 1 (Function) | Distribution.Types.PackageDescription, Distribution.PackageDescription | 
| 2 (Function) | Distribution.Types.PackageDescription.Lens, Distribution.Types.Lens | 
| build | Distribution.Simple.Build | 
| buildable |  | 
| 1 (Function) | Distribution.Types.BuildInfo, Distribution.PackageDescription | 
| 2 (Function) | Distribution.Types.BuildInfo.Lens, Distribution.Types.Lens | 
| buildArch | Distribution.System | 
| buildArgs | Distribution.Simple.Setup | 
| buildCabalFilePath | Distribution.Simple.Setup | 
| buildCommand | Distribution.Simple.Setup | 
| buildCompilerFlavor | Distribution.Compiler, Distribution.Simple.Compiler, Distribution.Simple | 
| buildCompilerId | Distribution.Compiler, Distribution.Simple.Compiler, Distribution.Simple | 
| buildDir | Distribution.Types.LocalBuildInfo, Distribution.Simple.LocalBuildInfo | 
| buildDistPref | Distribution.Simple.Setup | 
| buildExe |  | 
| 1 (Function) | Distribution.Simple.UHC | 
| 2 (Function) | Distribution.Simple.GHCJS | 
| 3 (Function) | Distribution.Simple.GHC | 
| BuildFlags |  | 
| 1 (Type/Class) | Distribution.Simple.Setup | 
| 2 (Data Constructor) | Distribution.Simple.Setup | 
| buildFLib |  | 
| 1 (Function) | Distribution.Simple.GHCJS | 
| 2 (Function) | Distribution.Simple.GHC | 
| buildHook | Distribution.Simple.UserHooks, Distribution.Simple | 
| BuildInfo |  | 
| 1 (Type/Class) | Distribution.Types.BuildInfo, Distribution.Types.BuildInfo.Lens, Distribution.Types.Lens, Distribution.PackageDescription | 
| 2 (Data Constructor) | Distribution.Types.BuildInfo, Distribution.PackageDescription | 
| buildInfo |  | 
| 1 (Function) | Distribution.Types.BuildInfo.Lens, Distribution.Types.Lens | 
| 2 (Function) | Distribution.Types.Executable, Distribution.PackageDescription | 
| buildInfoBuildFlags | Distribution.Simple.Setup | 
| buildInfoFieldGrammar | Distribution.PackageDescription.FieldGrammar | 
| buildInfoOutputFile | Distribution.Simple.Setup | 
| buildLib |  | 
| 1 (Function) | Distribution.Simple.UHC | 
| 2 (Function) | Distribution.Simple.HaskellSuite | 
| 3 (Function) | Distribution.Simple.GHCJS | 
| 4 (Function) | Distribution.Simple.GHC | 
| buildNumJobs | Distribution.Simple.Setup | 
| buildOptions | Distribution.Simple.Setup | 
| buildOS | Distribution.System | 
| buildPlatform | Distribution.System | 
| buildProgramArgs | Distribution.Simple.Setup | 
| buildProgramPaths | Distribution.Simple.Setup | 
| BuildTarget | Distribution.Simple.BuildTarget | 
| BuildTargetAmbiguous | Distribution.Simple.BuildTarget | 
| BuildTargetComponent | Distribution.Simple.BuildTarget | 
| buildTargetComponentName | Distribution.Simple.BuildTarget | 
| BuildTargetExpected | Distribution.Simple.BuildTarget | 
| BuildTargetFile | Distribution.Simple.BuildTarget | 
| BuildTargetModule | Distribution.Simple.BuildTarget | 
| BuildTargetNoSuch | Distribution.Simple.BuildTarget | 
| BuildTargetProblem | Distribution.Simple.BuildTarget | 
| buildToolDepends |  | 
| 1 (Function) | Distribution.Types.BuildInfo, Distribution.PackageDescription | 
| 2 (Function) | Distribution.Types.BuildInfo.Lens, Distribution.Types.Lens | 
| buildTools |  | 
| 1 (Function) | Distribution.Types.BuildInfo, Distribution.PackageDescription | 
| 2 (Function) | Distribution.Types.BuildInfo.Lens, Distribution.Types.Lens | 
| BuildType | Distribution.Types.BuildType, Distribution.PackageDescription | 
| buildType | Distribution.Types.PackageDescription, Distribution.PackageDescription | 
| buildTypeRaw |  | 
| 1 (Function) | Distribution.Types.PackageDescription, Distribution.PackageDescription | 
| 2 (Function) | Distribution.Types.PackageDescription.Lens, Distribution.Types.Lens | 
| buildVerbosity | Distribution.Simple.Setup | 
| builtinPrograms | Distribution.Simple.Program.Builtin, Distribution.Simple.Program | 
| byteSwap16 | Distribution.Compat.Binary | 
| byteSwap32 | Distribution.Compat.Binary | 
| byteSwap64 | Distribution.Compat.Binary | 
| Bzip2_1_0_5 | Distribution.SPDX.LicenseId, Distribution.SPDX | 
| Bzip2_1_0_6 | Distribution.SPDX.LicenseId, Distribution.SPDX |