OXIESEC PANEL

Name	Size	Modified	Perms
📁 ..	-	04/04/2023 07:10:48 PM	rwxr-xr-x
📄 AddFileDependencies.html	6.97 KB	04/04/2023 07:05:13 PM	rw-r--r--
📄 AndroidTestUtilities.html	11.57 KB	04/04/2023 07:05:13 PM	rw-r--r--
📄 BundleUtilities.html	24.15 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CMakeAddFortranSubdirectory.html	8.05 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CMakeBackwardCompatibilityCXX.html	5.61 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CMakeDependentOption.html	9.43 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CMakeDetermineVSServicePack.html	6.52 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CMakeExpandImportedTargets.html	8.86 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CMakeFindDependencyMacro.html	11.09 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CMakeFindFrameworks.html	5.41 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CMakeFindPackageMode.html	6.5 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CMakeForceCompiler.html	10.23 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CMakeGraphVizOptions.html	15.93 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CMakePackageConfigHelpers.html	30.38 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CMakeParseArguments.html	5.58 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CMakePrintHelpers.html	7.05 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CMakePrintSystemInformation.html	5.29 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CMakePushCheckState.html	8.23 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CMakeVerifyManifest.html	5.51 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CPack.html	63.98 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CPackArchive.html	5.48 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CPackBundle.html	5.36 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CPackComponent.html	26.3 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CPackCygwin.html	5.33 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CPackDMG.html	5.32 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CPackDeb.html	5.29 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CPackFreeBSD.html	5.43 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CPackIFW.html	30.28 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CPackIFWConfigureFile.html	7 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CPackNSIS.html	5.32 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CPackNuGet.html	5.47 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CPackProductBuild.html	5.5 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CPackRPM.html	5.33 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CPackWIX.html	5.37 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CSharpUtilities.html	22.41 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CTest.html	8.11 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CTestCoverageCollectGCOV.html	13.64 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CTestScriptMode.html	5.14 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CTestUseLaunchers.html	6.6 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CheckCCompilerFlag.html	7.68 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CheckCSourceCompiles.html	11.89 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CheckCSourceRuns.html	11.61 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CheckCXXCompilerFlag.html	7.77 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CheckCXXSourceCompiles.html	11.97 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CheckCXXSourceRuns.html	11.65 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CheckCXXSymbolExists.html	11.76 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CheckCompilerFlag.html	7.89 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CheckFortranCompilerFlag.html	8.01 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CheckFortranFunctionExists.html	8.42 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CheckFortranSourceCompiles.html	13.92 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CheckFortranSourceRuns.html	12.96 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CheckFunctionExists.html	9.19 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CheckIPOSupported.html	11.62 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CheckIncludeFile.html	9.28 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CheckIncludeFileCXX.html	9.24 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CheckIncludeFiles.html	9.79 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CheckLanguage.html	7.45 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CheckLibraryExists.html	7.15 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CheckLinkerFlag.html	9.01 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CheckOBJCCompilerFlag.html	7.9 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CheckOBJCSourceCompiles.html	11.92 KB	04/04/2023 07:05:14 PM	rw-r--r--
📄 CheckOBJCSourceRuns.html	11.63 KB	04/04/2023 07:05:15 PM	rw-r--r--
📄 CheckOBJCXXCompilerFlag.html	7.98 KB	04/04/2023 07:05:15 PM	rw-r--r--
📄 CheckOBJCXXSourceCompiles.html	11.99 KB	04/04/2023 07:05:15 PM	rw-r--r--
📄 CheckOBJCXXSourceRuns.html	11.63 KB	04/04/2023 07:05:15 PM	rw-r--r--
📄 CheckPIESupported.html	11.58 KB	04/04/2023 07:05:15 PM	rw-r--r--
📄 CheckPrototypeDefinition.html	8.21 KB	04/04/2023 07:05:15 PM	rw-r--r--
📄 CheckSourceCompiles.html	13.34 KB	04/04/2023 07:05:15 PM	rw-r--r--
📄 CheckSourceRuns.html	12.93 KB	04/04/2023 07:05:15 PM	rw-r--r--
📄 CheckStructHasMember.html	8.27 KB	04/04/2023 07:05:15 PM	rw-r--r--
📄 CheckSymbolExists.html	10.57 KB	04/04/2023 07:05:15 PM	rw-r--r--
📄 CheckTypeSize.html	11.37 KB	04/04/2023 07:05:15 PM	rw-r--r--
📄 CheckVariableExists.html	7.15 KB	04/04/2023 07:05:15 PM	rw-r--r--
📄 Dart.html	5.55 KB	04/04/2023 07:05:15 PM	rw-r--r--
📄 DeployQt4.html	8.86 KB	04/04/2023 07:05:15 PM	rw-r--r--
📄 Documentation.html	5.7 KB	04/04/2023 07:05:15 PM	rw-r--r--
📄 ExternalData.html	39.76 KB	04/04/2023 07:05:15 PM	rw-r--r--
📄 ExternalProject.html	119.65 KB	04/04/2023 07:05:15 PM	rw-r--r--
📄 FeatureSummary.html	36.68 KB	04/04/2023 07:05:15 PM	rw-r--r--
📄 FetchContent.html	138.33 KB	04/04/2023 07:05:15 PM	rw-r--r--
📄 FindALSA.html	7.34 KB	04/04/2023 07:05:15 PM	rw-r--r--
📄 FindASPELL.html	5.31 KB	04/04/2023 07:05:15 PM	rw-r--r--
📄 FindAVIFile.html	5.58 KB	04/04/2023 07:05:15 PM	rw-r--r--
📄 FindArmadillo.html	6.13 KB	04/04/2023 07:05:15 PM	rw-r--r--
📄 FindBISON.html	12.23 KB	04/04/2023 07:05:15 PM	rw-r--r--
📄 FindBLAS.html	19.4 KB	04/04/2023 07:05:15 PM	rw-r--r--
📄 FindBZip2.html	8.33 KB	04/04/2023 07:05:15 PM	rw-r--r--
📄 FindBacktrace.html	7.48 KB	04/04/2023 07:05:15 PM	rw-r--r--
📄 FindBoost.html	39.14 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindBullet.html	5.71 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindCABLE.html	5.44 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindCUDA.html	55.38 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindCUDAToolkit.html	38.35 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindCURL.html	8.86 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindCVS.html	5.38 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindCoin3D.html	5.4 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindCups.html	7.61 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindCurses.html	8.47 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindCxxTest.html	8.86 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindCygwin.html	4.97 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindDCMTK.html	9.88 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindDart.html	4.98 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindDevIL.html	8.14 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindDoxygen.html	35.36 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindEXPAT.html	6.84 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindEnvModules.html	17.08 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindFLEX.html	9.8 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindFLTK.html	9.31 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindFLTK2.html	5.63 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindFontconfig.html	6.83 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindFreetype.html	7.93 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindGCCXML.html	5.13 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindGDAL.html	8.53 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindGIF.html	7.91 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindGLEW.html	9.01 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindGLUT.html	8.84 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindGSL.html	8.7 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindGTK.html	5.16 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindGTK2.html	14.35 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindGTest.html	12.62 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindGettext.html	7.29 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindGit.html	6.74 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindGnuTLS.html	6.81 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindGnuplot.html	5.27 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindHDF5.html	17.47 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindHSPELL.html	5.53 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindHTMLHelp.html	5.24 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindHg.html	6.23 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindICU.html	9.91 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindITK.html	5.43 KB	04/04/2023 07:05:16 PM	rw-r--r--
📄 FindIce.html	14.89 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindIconv.html	10.11 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindIcotool.html	5.26 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindImageMagick.html	12.01 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindIntl.html	10.69 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindJNI.html	12.24 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindJPEG.html	8.44 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindJasper.html	7.21 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindJava.html	9.53 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindKDE3.html	10.05 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindKDE4.html	5.63 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindLAPACK.html	12.04 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindLATEX.html	6.7 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindLTTngUST.html	7.6 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindLibArchive.html	5.96 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindLibLZMA.html	8.68 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindLibXml2.html	8.24 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindLibXslt.html	7.65 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindLibinput.html	6.81 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindLua.html	6.46 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindLua50.html	5.61 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindLua51.html	5.64 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindMFC.html	5.21 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindMPEG.html	5.41 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindMPEG2.html	5.41 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindMPI.html	29.38 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindMatlab.html	47.34 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindMotif.html	5.14 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindMsys.html	5.02 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindODBC.html	10.44 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindOpenACC.html	10.21 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindOpenAL.html	9.04 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindOpenCL.html	7.09 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindOpenGL.html	16.22 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindOpenMP.html	12.65 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindOpenSP.html	9.44 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindOpenSSL.html	13.11 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindOpenSceneGraph.html	10.93 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindOpenThreads.html	5.72 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindPHP4.html	5.31 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindPNG.html	7.88 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindPackageHandleStandardArgs.html	24.77 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindPackageMessage.html	6.76 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindPatch.html	6.42 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindPerl.html	5.19 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindPerlLibs.html	6.56 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindPhysFS.html	5.21 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindPike.html	5.31 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindPkgConfig.html	33.09 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindPostgreSQL.html	7.82 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindProducer.html	6.05 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindProtobuf.html	16.5 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindPython.html	50.47 KB	04/04/2023 07:05:17 PM	rw-r--r--
📄 FindPython2.html	38.39 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindPython3.html	50.35 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindPythonInterp.html	8.55 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindPythonLibs.html	7.54 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindQt.html	6.83 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindQt3.html	5.76 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindQt4.html	24.58 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindQuickTime.html	5.16 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindRTI.html	5.91 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindRuby.html	10.42 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindSDL.html	11.03 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindSDL_gfx.html	5.82 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindSDL_image.html	5.77 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindSDL_mixer.html	5.8 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindSDL_net.html	5.76 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindSDL_sound.html	6.89 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindSDL_ttf.html	5.78 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindSQLite3.html	6.77 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindSWIG.html	10.06 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindSelfPackers.html	5.27 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindSquish.html	9.18 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindSubversion.html	8.03 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindTCL.html	6.66 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindTIFF.html	9.39 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindTclStub.html	6.41 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindTclsh.html	5.26 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindThreads.html	8.35 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindUnixCommands.html	6.32 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindVTK.html	5.47 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindVulkan.html	17.6 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindWget.html	5.13 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindWish.html	5.31 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindX11.html	11.53 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindXCTest.html	9.17 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindXMLRPC.html	5.75 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindXalanC.html	7.75 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindXercesC.html	7.82 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindZLIB.html	10.7 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 Findosg.html	6.16 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindosgAnimation.html	6.1 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindosgDB.html	7.27 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindosgFX.html	5.94 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindosgGA.html	6.02 KB	04/04/2023 07:05:18 PM	rw-r--r--
📄 FindosgIntrospection.html	6.19 KB	04/04/2023 07:05:18 PM	rw-r--r--
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Editing: WriteCompilerDetectionHeader.html

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 <section id="writecompilerdetectionheader">
<h1>WriteCompilerDetectionHeader<a class="headerlink" href="#writecompilerdetectionheader" title="Permalink to this heading">¶</a></h1>
<div class="deprecated">
Deprecated since version 3.20: This module is available only if policy <a class="reference internal" href="../policy/CMP0120.html#policy:CMP0120" title="CMP0120"><code class="xref cmake cmake-policy docutils literal notranslate">CMP0120</code></a>
is not set to <code class="docutils literal notranslate">NEW</code>. Do not use it in new code.
</div>
<div class="versionadded">
New in version 3.1.
</div>
This module provides the function <code class="docutils literal notranslate">write_compiler_detection_header()</code>.
This function can be used to generate a file suitable for preprocessor
inclusion which contains macros to be used in source code:
<div class="highlight-none notranslate"><div class="highlight"><pre>write_compiler_detection_header(
 FILE &lt;file&gt;
 PREFIX &lt;prefix&gt;
 [OUTPUT_FILES_VAR &lt;output_files_var&gt; OUTPUT_DIR &lt;output_dir&gt;]
 COMPILERS &lt;compiler&gt; [...]
 FEATURES &lt;feature&gt; [...]
 [BARE_FEATURES &lt;feature&gt; [...]]
 [VERSION &lt;version&gt;]
 [PROLOG &lt;prolog&gt;]
 [EPILOG &lt;epilog&gt;]
 [ALLOW_UNKNOWN_COMPILERS]
 [ALLOW_UNKNOWN_COMPILER_VERSIONS]
)
</pre></div>
</div>
This generates the file <code class="docutils literal notranslate">&lt;file&gt;</code> with macros which all have the prefix
<code class="docutils literal notranslate">&lt;prefix&gt;</code>.
By default, all content is written directly to the <code class="docutils literal notranslate">&lt;file&gt;</code>. The
<code class="docutils literal notranslate">OUTPUT_FILES_VAR</code> may be specified to cause the compiler-specific
content to be written to separate files. The separate files are then
available in the <code class="docutils literal notranslate">&lt;output_files_var&gt;</code> and may be consumed by the caller
for installation for example. The <code class="docutils literal notranslate">OUTPUT_DIR</code> specifies a relative
path from the main <code class="docutils literal notranslate">&lt;file&gt;</code> to the compiler-specific files. For example:
<div class="highlight-cmake notranslate"><div class="highlight"><pre>write_compiler_detection_header(
 FILE climbingstats_compiler_detection.h
 PREFIX ClimbingStats
 OUTPUT_FILES_VAR support_files
 OUTPUT_DIR compilers
 COMPILERS GNU Clang MSVC Intel
 FEATURES cxx_variadic_templates
)
install(FILES
 ${CMAKE_CURRENT_BINARY_DIR}/climbingstats_compiler_detection.h
 DESTINATION include
)
install(FILES
 ${support_files}
 DESTINATION include/compilers
)
</pre></div>
</div>
<code class="docutils literal notranslate">VERSION</code> may be used to specify the API version to be generated.
Future versions of CMake may introduce alternative APIs. A given
API is selected by any <code class="docutils literal notranslate">&lt;version&gt;</code> value greater than or equal
to the version of CMake that introduced the given API and less
than the version of CMake that introduced its succeeding API.
The value of the <a class="reference internal" href="../variable/CMAKE_MINIMUM_REQUIRED_VERSION.html#variable:CMAKE_MINIMUM_REQUIRED_VERSION" title="CMAKE_MINIMUM_REQUIRED_VERSION"><code class="xref cmake cmake-variable docutils literal notranslate">CMAKE_MINIMUM_REQUIRED_VERSION</code></a>
variable is used if no explicit version is specified.
(As of CMake version 3.26.3 there is only one API version.)
<code class="docutils literal notranslate">PROLOG</code> may be specified as text content to write at the start of the
header. <code class="docutils literal notranslate">EPILOG</code> may be specified as text content to write at the end
of the header
At least one <code class="docutils literal notranslate">&lt;compiler&gt;</code> and one <code class="docutils literal notranslate">&lt;feature&gt;</code> must be listed. Compilers
which are known to CMake, but not specified are detected and a preprocessor
<code class="docutils literal notranslate">#error</code> is generated for them. A preprocessor macro matching
<code class="docutils literal notranslate">&lt;PREFIX&gt;_COMPILER_IS_&lt;compiler&gt;</code> is generated for each compiler
known to CMake to contain the value <code class="docutils literal notranslate">0</code> or <code class="docutils literal notranslate">1</code>.
Possible compiler identifiers are documented with the
<a class="reference internal" href="../variable/CMAKE_LANG_COMPILER_ID.html#variable:CMAKE_&lt;LANG&gt;_COMPILER_ID" title="CMAKE_&lt;LANG&gt;_COMPILER_ID"><code class="xref cmake cmake-variable docutils literal notranslate">CMAKE_&lt;LANG&gt;_COMPILER_ID</code></a> variable.
Available features in this version of CMake are listed in the
<a class="reference internal" href="../prop_gbl/CMAKE_C_KNOWN_FEATURES.html#prop_gbl:CMAKE_C_KNOWN_FEATURES" title="CMAKE_C_KNOWN_FEATURES"><code class="xref cmake cmake-prop_gbl docutils literal notranslate">CMAKE_C_KNOWN_FEATURES</code></a> and
<a class="reference internal" href="../prop_gbl/CMAKE_CXX_KNOWN_FEATURES.html#prop_gbl:CMAKE_CXX_KNOWN_FEATURES" title="CMAKE_CXX_KNOWN_FEATURES"><code class="xref cmake cmake-prop_gbl docutils literal notranslate">CMAKE_CXX_KNOWN_FEATURES</code></a> global properties.
See the <a class="reference internal" href="../manual/cmake-compile-features.7.html#manual:cmake-compile-features(7)" title="cmake-compile-features(7)"><code class="xref cmake cmake-manual docutils literal notranslate">cmake-compile-features(7)</code></a> manual for information on
compile features.
<div class="versionadded">
New in version 3.2: Added <code class="docutils literal notranslate">MSVC</code> and <code class="docutils literal notranslate">AppleClang</code> compiler support.
</div>
<div class="versionadded">
New in version 3.6: Added <code class="docutils literal notranslate">Intel</code> compiler support.
</div>
<div class="versionchanged">
Changed in version 3.8: The <code class="docutils literal notranslate">{c,cxx}_std_*</code> meta-features are ignored if requested.
</div>
<div class="versionadded">
New in version 3.8: <code class="docutils literal notranslate">ALLOW_UNKNOWN_COMPILERS</code> and <code class="docutils literal notranslate">ALLOW_UNKNOWN_COMPILER_VERSIONS</code> cause
the module to generate conditions that treat unknown compilers as simply
lacking all features. Without these options the default behavior is to
generate a <code class="docutils literal notranslate">#error</code> for unknown compilers and versions.
</div>
<div class="versionadded">
New in version 3.12: <code class="docutils literal notranslate">BARE_FEATURES</code> will define the compatibility macros with the name used in
newer versions of the language standard, so the code can use the new feature
name unconditionally.
</div>
<section id="feature-test-macros">
<h2>Feature Test Macros<a class="headerlink" href="#feature-test-macros" title="Permalink to this heading">¶</a></h2>
For each compiler, a preprocessor macro is generated matching
<code class="docutils literal notranslate">&lt;PREFIX&gt;_COMPILER_IS_&lt;compiler&gt;</code> which has the content either <code class="docutils literal notranslate">0</code>
or <code class="docutils literal notranslate">1</code>, depending on the compiler in use. Preprocessor macros for
compiler version components are generated matching
<code class="docutils literal notranslate">&lt;PREFIX&gt;_COMPILER_VERSION_MAJOR</code> <code class="docutils literal notranslate">&lt;PREFIX&gt;_COMPILER_VERSION_MINOR</code>
and <code class="docutils literal notranslate">&lt;PREFIX&gt;_COMPILER_VERSION_PATCH</code> containing decimal values
for the corresponding compiler version components, if defined.
A preprocessor test is generated based on the compiler version
denoting whether each feature is enabled. A preprocessor macro
matching <code class="docutils literal notranslate">&lt;PREFIX&gt;_COMPILER_&lt;FEATURE&gt;</code>, where <code class="docutils literal notranslate">&lt;FEATURE&gt;</code> is the
upper-case <code class="docutils literal notranslate">&lt;feature&gt;</code> name, is generated to contain the value
<code class="docutils literal notranslate">0</code> or <code class="docutils literal notranslate">1</code> depending on whether the compiler in use supports the
feature:
<div class="highlight-cmake notranslate"><div class="highlight"><pre>write_compiler_detection_header(
 FILE climbingstats_compiler_detection.h
 PREFIX ClimbingStats
 COMPILERS GNU Clang AppleClang MSVC Intel
 FEATURES cxx_variadic_templates
)
</pre></div>
</div>
<div class="highlight-c++ notranslate"><div class="highlight"><pre>#if ClimbingStats_COMPILER_CXX_VARIADIC_TEMPLATES
template&lt;typename... T&gt;
void someInterface(T t...) { /* ... */ }
#else
// Compatibility versions
template&lt;typename T1&gt;
void someInterface(T1 t1) { /* ... */ }
template&lt;typename T1, typename T2&gt;
void someInterface(T1 t1, T2 t2) { /* ... */ }
template&lt;typename T1, typename T2, typename T3&gt;
void someInterface(T1 t1, T2 t2, T3 t3) { /* ... */ }
#endif
</pre></div>
</div>
</section>
<section id="symbol-macros">
<h2>Symbol Macros<a class="headerlink" href="#symbol-macros" title="Permalink to this heading">¶</a></h2>
Some additional symbol-defines are created for particular features for
use as symbols which may be conditionally defined empty:
<div class="highlight-c++ notranslate"><div class="highlight"><pre>class MyClass ClimbingStats_FINAL
{
 ClimbingStats_CONSTEXPR int someInterface() { return 42; }
};
</pre></div>
</div>
The <code class="docutils literal notranslate">ClimbingStats_FINAL</code> macro will expand to <code class="docutils literal notranslate">final</code> if the
compiler (and its flags) support the <code class="docutils literal notranslate">cxx_final</code> feature, and the
<code class="docutils literal notranslate">ClimbingStats_CONSTEXPR</code> macro will expand to <code class="docutils literal notranslate">constexpr</code>
if <code class="docutils literal notranslate">cxx_constexpr</code> is supported.
If <code class="docutils literal notranslate">BARE_FEATURES cxx_final</code> was given as argument the <code class="docutils literal notranslate">final</code> keyword
will be defined for old compilers, too.
The following features generate corresponding symbol defines and if they
are available as <code class="docutils literal notranslate">BARE_FEATURES</code>:
<table class="docutils align-default">
<thead>
<tr class="row-odd"><th class="head">Feature</th>
<th class="head">Define</th>
<th class="head">Symbol</th>
<th class="head">bare</th>
</tr>
</thead>
<tbody>
<tr class="row-even"><td><code class="docutils literal notranslate">c_restrict</code></td>
<td><code class="docutils literal notranslate">&lt;PREFIX&gt;_RESTRICT</code></td>
<td><code class="docutils literal notranslate">restrict</code></td>
<td>yes</td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate">cxx_constexpr</code></td>
<td><code class="docutils literal notranslate">&lt;PREFIX&gt;_CONSTEXPR</code></td>
<td><code class="docutils literal notranslate">constexpr</code></td>
<td>yes</td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate">cxx_deleted_functions</code></td>
<td><code class="docutils literal notranslate">&lt;PREFIX&gt;_DELETED_FUNCTION</code></td>
<td><code class="docutils literal notranslate">= delete</code></td>
<td></td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate">cxx_extern_templates</code></td>
<td><code class="docutils literal notranslate">&lt;PREFIX&gt;_EXTERN_TEMPLATE</code></td>
<td><code class="docutils literal notranslate">extern</code></td>
<td></td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate">cxx_final</code></td>
<td><code class="docutils literal notranslate">&lt;PREFIX&gt;_FINAL</code></td>
<td><code class="docutils literal notranslate">final</code></td>
<td>yes</td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate">cxx_noexcept</code></td>
<td><code class="docutils literal notranslate">&lt;PREFIX&gt;_NOEXCEPT</code></td>
<td><code class="docutils literal notranslate">noexcept</code></td>
<td>yes</td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate">cxx_noexcept</code></td>
<td><code class="docutils literal notranslate">&lt;PREFIX&gt;_NOEXCEPT_EXPR(X)</code></td>
<td><code class="docutils literal notranslate">noexcept(X)</code></td>
<td></td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate">cxx_override</code></td>
<td><code class="docutils literal notranslate">&lt;PREFIX&gt;_OVERRIDE</code></td>
<td><code class="docutils literal notranslate">override</code></td>
<td>yes</td>
</tr>
</tbody>
</table>
</section>
<section id="compatibility-implementation-macros">
<h2>Compatibility Implementation Macros<a class="headerlink" href="#compatibility-implementation-macros" title="Permalink to this heading">¶</a></h2>
Some features are suitable for wrapping in a macro with a backward
compatibility implementation if the compiler does not support the feature.
When the <code class="docutils literal notranslate">cxx_static_assert</code> feature is not provided by the compiler,
a compatibility implementation is available via the
<code class="docutils literal notranslate">&lt;PREFIX&gt;_STATIC_ASSERT(COND)</code> and
<code class="docutils literal notranslate">&lt;PREFIX&gt;_STATIC_ASSERT_MSG(COND, MSG)</code> function-like macros. The macros
expand to <code class="docutils literal notranslate">static_assert</code> where that compiler feature is available, and
to a compatibility implementation otherwise. In the first form, the
condition is stringified in the message field of <code class="docutils literal notranslate">static_assert</code>. In
the second form, the message <code class="docutils literal notranslate">MSG</code> is passed to the message field of
<code class="docutils literal notranslate">static_assert</code>, or ignored if using the backward compatibility
implementation.
The <code class="docutils literal notranslate">cxx_attribute_deprecated</code> feature provides a macro definition
<code class="docutils literal notranslate">&lt;PREFIX&gt;_DEPRECATED</code>, which expands to either the standard
<code class="docutils literal notranslate">[[deprecated]]</code> attribute or a compiler-specific decorator such
as <code class="docutils literal notranslate">__attribute__((__deprecated__))</code> used by GNU compilers.
The <code class="docutils literal notranslate">cxx_alignas</code> feature provides a macro definition
<code class="docutils literal notranslate">&lt;PREFIX&gt;_ALIGNAS</code> which expands to either the standard <code class="docutils literal notranslate">alignas</code>
decorator or a compiler-specific decorator such as
<code class="docutils literal notranslate">__attribute__ ((__aligned__))</code> used by GNU compilers.
The <code class="docutils literal notranslate">cxx_alignof</code> feature provides a macro definition
<code class="docutils literal notranslate">&lt;PREFIX&gt;_ALIGNOF</code> which expands to either the standard <code class="docutils literal notranslate">alignof</code>
decorator or a compiler-specific decorator such as <code class="docutils literal notranslate">__alignof__</code>
used by GNU compilers.
<table class="docutils align-default">
<thead>
<tr class="row-odd"><th class="head">Feature</th>
<th class="head">Define</th>
<th class="head">Symbol</th>
<th class="head">bare</th>
</tr>
</thead>
<tbody>
<tr class="row-even"><td><code class="docutils literal notranslate">cxx_alignas</code></td>
<td><code class="docutils literal notranslate">&lt;PREFIX&gt;_ALIGNAS</code></td>
<td><code class="docutils literal notranslate">alignas</code></td>
<td></td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate">cxx_alignof</code></td>
<td><code class="docutils literal notranslate">&lt;PREFIX&gt;_ALIGNOF</code></td>
<td><code class="docutils literal notranslate">alignof</code></td>
<td></td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate">cxx_nullptr</code></td>
<td><code class="docutils literal notranslate">&lt;PREFIX&gt;_NULLPTR</code></td>
<td><code class="docutils literal notranslate">nullptr</code></td>
<td>yes</td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate">cxx_static_assert</code></td>
<td><code class="docutils literal notranslate">&lt;PREFIX&gt;_STATIC_ASSERT</code></td>
<td><code class="docutils literal notranslate">static_assert</code></td>
<td></td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate">cxx_static_assert</code></td>
<td><code class="docutils literal notranslate">&lt;PREFIX&gt;_STATIC_ASSERT_MSG</code></td>
<td><code class="docutils literal notranslate">static_assert</code></td>
<td></td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate">cxx_attribute_deprecated</code></td>
<td><code class="docutils literal notranslate">&lt;PREFIX&gt;_DEPRECATED</code></td>
<td><code class="docutils literal notranslate">[[deprecated]]</code></td>
<td></td>
</tr>
<tr class="row-even"><td><code class="docutils literal notranslate">cxx_attribute_deprecated</code></td>
<td><code class="docutils literal notranslate">&lt;PREFIX&gt;_DEPRECATED_MSG</code></td>
<td><code class="docutils literal notranslate">[[deprecated]]</code></td>
<td></td>
</tr>
<tr class="row-odd"><td><code class="docutils literal notranslate">cxx_thread_local</code></td>
<td><code class="docutils literal notranslate">&lt;PREFIX&gt;_THREAD_LOCAL</code></td>
<td><code class="docutils literal notranslate">thread_local</code></td>
<td></td>
</tr>
</tbody>
</table>
A use-case which arises with such deprecation macros is the deprecation
of an entire library. In that case, all public API in the library may
be decorated with the <code class="docutils literal notranslate">&lt;PREFIX&gt;_DEPRECATED</code> macro. This results in
very noisy build output when building the library itself, so the macro
may be may be defined to empty in that case when building the deprecated
library:
<div class="highlight-cmake notranslate"><div class="highlight"><pre>add_library(compat_support ${srcs})
target_compile_definitions(compat_support
 PRIVATE
 CompatSupport_DEPRECATED=
)
</pre></div>
</div>
</section>
<section id="example-usage">
<h2>Example Usage<a class="headerlink" href="#example-usage" title="Permalink to this heading">¶</a></h2>
<div class="admonition note">
Note
This section was migrated from the <a class="reference internal" href="../manual/cmake-compile-features.7.html#manual:cmake-compile-features(7)" title="cmake-compile-features(7)"><code class="xref cmake cmake-manual docutils literal notranslate">cmake-compile-features(7)</code></a>
manual since it relies on the <code class="docutils literal notranslate">WriteCompilerDetectionHeader</code> module
which is removed by policy <a class="reference internal" href="../policy/CMP0120.html#policy:CMP0120" title="CMP0120"><code class="xref cmake cmake-policy docutils literal notranslate">CMP0120</code></a>.
</div>
Compile features may be preferred if available, without creating a hard
requirement. For example, a library may provide alternative
implementations depending on whether the <code class="docutils literal notranslate">cxx_variadic_templates</code>
feature is available:
<div class="highlight-c++ notranslate"><div class="highlight"><pre>#if Foo_COMPILER_CXX_VARIADIC_TEMPLATES
template&lt;int I, int... Is&gt;
struct Interface;

template&lt;int I&gt;
struct Interface&lt;I&gt;
{
 static int accumulate()
 {
 return I;
 }
};

template&lt;int I, int... Is&gt;
struct Interface
{
 static int accumulate()
 {
 return I + Interface&lt;Is...&gt;::accumulate();
 }
};
#else
template&lt;int I1, int I2 = 0, int I3 = 0, int I4 = 0&gt;
struct Interface
{
 static int accumulate() { return I1 + I2 + I3 + I4; }
};
#endif
</pre></div>
</div>
Such an interface depends on using the correct preprocessor defines for the
compiler features. CMake can generate a header file containing such
defines using the <a class="reference internal" href="#module:WriteCompilerDetectionHeader" title="WriteCompilerDetectionHeader"><code class="xref cmake cmake-module docutils literal notranslate">WriteCompilerDetectionHeader</code></a> module. The
module contains the <code class="docutils literal notranslate">write_compiler_detection_header</code> function which
accepts parameters to control the content of the generated header file:
<div class="highlight-cmake notranslate"><div class="highlight"><pre>write_compiler_detection_header(
 FILE &quot;${CMAKE_CURRENT_BINARY_DIR}/foo_compiler_detection.h&quot;
 PREFIX Foo
 COMPILERS GNU
 FEATURES
 cxx_variadic_templates
)
</pre></div>
</div>
Such a header file may be used internally in the source code of a project,
and it may be installed and used in the interface of library code.
For each feature listed in <code class="docutils literal notranslate">FEATURES</code>, a preprocessor definition
is created in the header file, and defined to either <code class="docutils literal notranslate">1</code> or <code class="docutils literal notranslate">0</code>.
Additionally, some features call for additional defines, such as the
<code class="docutils literal notranslate">cxx_final</code> and <code class="docutils literal notranslate">cxx_override</code> features. Rather than being used in
<code class="docutils literal notranslate">#ifdef</code> code, the <code class="docutils literal notranslate">final</code> keyword is abstracted by a symbol
which is defined to either <code class="docutils literal notranslate">final</code>, a compiler-specific equivalent, or
to empty. That way, C++ code can be written to unconditionally use the
symbol, and compiler support determines what it is expanded to:
<div class="highlight-c++ notranslate"><div class="highlight"><pre>struct Interface {
 virtual void Execute() = 0;
};

struct Concrete Foo_FINAL {
 void Execute() Foo_OVERRIDE;
};
</pre></div>
</div>
In this case, <code class="docutils literal notranslate">Foo_FINAL</code> will expand to <code class="docutils literal notranslate">final</code> if the
compiler supports the keyword, or to empty otherwise.
In this use-case, the project code may wish to enable a particular language
standard if available from the compiler. The <a class="reference internal" href="../prop_tgt/CXX_STANDARD.html#prop_tgt:CXX_STANDARD" title="CXX_STANDARD"><code class="xref cmake cmake-prop_tgt docutils literal notranslate">CXX_STANDARD</code></a>
target property may be set to the desired language standard for a particular
target, and the <a class="reference internal" href="../variable/CMAKE_CXX_STANDARD.html#variable:CMAKE_CXX_STANDARD" title="CMAKE_CXX_STANDARD"><code class="xref cmake cmake-variable docutils literal notranslate">CMAKE_CXX_STANDARD</code></a> variable may be set to
influence all following targets:
<div class="highlight-cmake notranslate"><div class="highlight"><pre>write_compiler_detection_header(
 FILE &quot;${CMAKE_CURRENT_BINARY_DIR}/foo_compiler_detection.h&quot;
 PREFIX Foo
 COMPILERS GNU
 FEATURES
 cxx_final cxx_override
)

# Includes foo_compiler_detection.h and uses the Foo_FINAL symbol
# which will expand to &#39;final&#39; if the compiler supports the requested
# CXX_STANDARD.
add_library(foo foo.cpp)
set_property(TARGET foo PROPERTY CXX_STANDARD 11)

# Includes foo_compiler_detection.h and uses the Foo_FINAL symbol
# which will expand to &#39;final&#39; if the compiler supports the feature,
# even though CXX_STANDARD is not set explicitly. The requirement of
# cxx_constexpr causes CMake to set CXX_STANDARD internally, which
# affects the compile flags.
add_library(foo_impl foo_impl.cpp)
target_compile_features(foo_impl PRIVATE cxx_constexpr)
</pre></div>
</div>
The <code class="docutils literal notranslate">write_compiler_detection_header</code> function also creates compatibility
code for other features which have standard equivalents. For example, the
<code class="docutils literal notranslate">cxx_static_assert</code> feature is emulated with a template and abstracted
via the <code class="docutils literal notranslate">&lt;PREFIX&gt;_STATIC_ASSERT</code> and <code class="docutils literal notranslate">&lt;PREFIX&gt;_STATIC_ASSERT_MSG</code>
function-macros.
</section>
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