83 lines
2.4 KiB
C++
83 lines
2.4 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 cmVariableRequiresCommand_h
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#define cmVariableRequiresCommand_h
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#include "cmCommand.h"
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/** \class cmVariableRequiresCommand
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* \brief Displays a message to the user
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*
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*/
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class cmVariableRequiresCommand : 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 cmVariableRequiresCommand;
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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 "variable_requires";}
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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 "Deprecated. Use the if() command instead.";
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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()
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{
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return
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"Assert satisfaction of an option's required variables.\n"
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" variable_requires(TEST_VARIABLE RESULT_VARIABLE\n"
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" REQUIRED_VARIABLE1\n"
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" REQUIRED_VARIABLE2 ...)\n"
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"The first argument (TEST_VARIABLE) is the name of the variable to be "
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"tested, if that variable is false nothing else is done. If "
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"TEST_VARIABLE is true, then "
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"the next argument (RESULT_VARIABLE) is a variable that is set to true "
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"if all the required variables are set. "
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"The rest of the arguments are variables that must be true or not "
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"set to NOTFOUND to avoid an error. If any are not true, an error "
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"is reported.";
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}
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/** This command is kept for compatibility with older CMake versions. */
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virtual bool IsDiscouraged()
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{
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return true;
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}
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cmTypeMacro(cmVariableRequiresCommand, cmCommand);
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};
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#endif
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