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106 lines
3.8 KiB
106 lines
3.8 KiB
/*============================================================================
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CMake - Cross Platform Makefile Generator
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Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
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Distributed under the OSI-approved BSD License (the "License");
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see accompanying file Copyright.txt for details.
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This software is distributed WITHOUT ANY WARRANTY; without even the
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the License for more information.
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============================================================================*/
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#ifndef cmTryCompileCommand_h
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#define cmTryCompileCommand_h
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#include "cmCoreTryCompile.h"
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/** \class cmTryCompileCommand
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* \brief Specifies where to install some files
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*
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* cmTryCompileCommand is used to test if soucre code can be compiled
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*/
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class cmTryCompileCommand : public cmCoreTryCompile
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{
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public:
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/**
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* This is a virtual constructor for the command.
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*/
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virtual cmCommand* Clone()
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{
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return new cmTryCompileCommand;
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}
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/**
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* This is called when the command is first encountered in
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* the CMakeLists.txt file.
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*/
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virtual bool InitialPass(std::vector<std::string> const& args,
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cmExecutionStatus &status);
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/**
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* The name of the command as specified in CMakeList.txt.
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*/
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virtual const char* GetName() { return "try_compile";}
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/**
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* Succinct documentation.
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*/
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virtual const char* GetTerseDocumentation()
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{
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return "Try compiling some code.";
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}
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/**
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* More documentation. */
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virtual const char* GetFullDocumentation()
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{
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return
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" try_compile(RESULT_VAR bindir srcdir\n"
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" projectName <targetname> [CMAKE_FLAGS <Flags>]\n"
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" [OUTPUT_VARIABLE var])\n"
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"Try compiling a program. In this form, srcdir should contain a "
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"complete CMake project with a CMakeLists.txt file and all sources. The "
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"bindir and srcdir will not be deleted after this command is run. "
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"If <target name> is specified then build just that target "
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"otherwise the all or ALL_BUILD target is built.\n"
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" try_compile(RESULT_VAR bindir srcfile\n"
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" [CMAKE_FLAGS <Flags>]\n"
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" [COMPILE_DEFINITIONS <flags> ...]\n"
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" [OUTPUT_VARIABLE var]\n"
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" [COPY_FILE <filename> )\n"
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"Try compiling a srcfile. In this case, the user need only supply a "
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"source file. CMake will create the appropriate CMakeLists.txt file "
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"to build the source. If COPY_FILE is used, the compiled file will be "
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"copied to the given file.\n"
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"In this version all files in bindir/CMakeFiles/CMakeTmp, "
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"will be cleaned automatically, for debugging a --debug-trycompile can "
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"be passed to cmake to avoid the clean. Some extra flags that "
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" can be included are, "
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"INCLUDE_DIRECTORIES, LINK_DIRECTORIES, and LINK_LIBRARIES. "
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"COMPILE_DEFINITIONS are -Ddefinition that will be passed to the "
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"compile line. "
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"try_compile creates a CMakeList.txt "
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"file on the fly that looks like this:\n"
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" add_definitions( <expanded COMPILE_DEFINITIONS from calling "
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"cmake>)\n"
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" include_directories(${INCLUDE_DIRECTORIES})\n"
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" link_directories(${LINK_DIRECTORIES})\n"
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" add_executable(cmTryCompileExec sources)\n"
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" target_link_libraries(cmTryCompileExec ${LINK_LIBRARIES})\n"
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"In both versions of the command, "
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"if OUTPUT_VARIABLE is specified, then the "
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"output from the build process is stored in the given variable. "
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"Return the success or failure in "
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"RESULT_VAR. CMAKE_FLAGS can be used to pass -DVAR:TYPE=VALUE flags "
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"to the cmake that is run during the build. "
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"";
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}
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cmTypeMacro(cmTryCompileCommand, cmCoreTryCompile);
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};
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#endif
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