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4a71168735
CMake requires the top-level CMakeLists.txt to contain a direct call to the project() command and will insert one if there is not. Document this requirement since some authors have tried to use include() to load a file calling the project command.
89 lines
3.0 KiB
C++
89 lines
3.0 KiB
C++
/*============================================================================
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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 cmProjectCommand_h
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#define cmProjectCommand_h
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#include "cmCommand.h"
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/** \class cmProjectCommand
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* \brief Specify the name for this build project.
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*
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* cmProjectCommand is used to specify a name for this build project.
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* It is defined once per set of CMakeList.txt files (including
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* all subdirectories). Currently it just sets the name of the workspace
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* file for Microsoft Visual C++
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*/
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class cmProjectCommand : public cmCommand
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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 cmProjectCommand;
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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() const {return "project";}
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/**
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* Succinct documentation.
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*/
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virtual const char* GetTerseDocumentation() const
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{
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return "Set a name for the entire project.";
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}
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/**
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* More documentation.
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*/
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virtual const char* GetFullDocumentation() const
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{
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return
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" project(<projectname> [languageName1 languageName2 ... ] )\n"
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"Sets the name of the project. "
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"Additionally this sets the variables <projectName>_BINARY_DIR and "
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"<projectName>_SOURCE_DIR to the respective values.\n"
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"Optionally you can specify which languages your project supports. "
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"Example languages are CXX (i.e. C++), C, Fortran, etc. "
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"By default C and CXX are enabled. E.g. if you do not have a "
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"C++ compiler, you can disable the check for it by explicitly listing "
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"the languages you want to support, e.g. C. By using the special "
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"language \"NONE\" all checks for any language can be disabled. "
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"If a variable exists called CMAKE_PROJECT_<projectName>_INCLUDE, "
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"the file pointed to by that variable will be included as the last step "
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"of the project command."
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"\n"
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"The top-level CMakeLists.txt file for a project must contain a "
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"literal, direct call to the project() command; loading one through "
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"the include() command is not sufficient. "
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"If no such call exists CMake will implicitly add one to the top that "
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"enables the default languages (C and CXX).";
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}
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cmTypeMacro(cmProjectCommand, cmCommand);
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};
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#endif
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