| X11 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| X86_64 | Distribution.System |
| xargs | Distribution.Simple.Utils |
| xBUTTON1 | System.Win32.Automation.Input.Mouse, System.Win32.Automation.Input, System.Win32.Automation, System.Win32 |
| xBUTTON2 | System.Win32.Automation.Input.Mouse, System.Win32.Automation.Input, System.Win32.Automation, System.Win32 |
| XdgCache | System.Directory.Internal, System.Directory |
| XdgConfig | System.Directory.Internal, System.Directory |
| XdgConfigDirs | System.Directory.Internal, System.Directory |
| XdgData | System.Directory.Internal, System.Directory |
| XdgDataDirs | System.Directory.Internal, System.Directory |
| XdgDirectory | System.Directory.Internal, System.Directory |
| XdgDirectoryList | System.Directory.Internal, System.Directory |
| Xerox | Distribution.SPDX.LicenseId, Distribution.SPDX |
| XFree86_1_1 | Distribution.SPDX.LicenseId, Distribution.SPDX |
| Xinetd | Distribution.SPDX.LicenseId, Distribution.SPDX |
| XmlSyntax | Language.Haskell.Extension, Distribution.Simple |
| Xnet | Distribution.SPDX.LicenseId, Distribution.SPDX |
| xor | |
| 1 (Function) | Data.List.NonEmpty |
| 2 (Function) | Data.Bits, Foreign.Safe, Foreign |
| xor# | |
| 1 (Function) | GHC.Base, GHC.Exts |
| 2 (Function) | GHC.PrimopWrappers |
| 3 (Function) | GHC.Prim |
| xorBigNat | GHC.Integer.GMP.Internals |
| xorI# | |
| 1 (Function) | GHC.Base, GHC.Exts |
| 2 (Function) | GHC.PrimopWrappers |
| 3 (Function) | GHC.Prim |
| xorInteger | |
| 1 (Function) | GHC.Integer |
| 2 (Function) | GHC.Integer.GMP.Internals |
| xorNatural | GHC.Natural |
| xPos | System.Win32.Console, System.Win32 |
| Xpp | Distribution.SPDX.LicenseId, Distribution.SPDX |
| XSkat | Distribution.SPDX.LicenseId, Distribution.SPDX |