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65 lines
1.8 KiB
65 lines
1.8 KiB
16 years ago
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/*=========================================================================
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Program: CMake - Cross-Platform Makefile Generator
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Module: $RCSfile: cmUnsetCommand.cxx,v $
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Language: C++
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Date: $Date: 2009-02-04 16:44:17 $
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Version: $Revision: 1.1.2.2 $
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Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
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See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notices for more information.
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=========================================================================*/
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#include "cmUnsetCommand.h"
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// cmUnsetCommand
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bool cmUnsetCommand::InitialPass(std::vector<std::string> const& args,
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cmExecutionStatus &)
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{
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if(args.size() < 1 || args.size() > 2)
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{
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this->SetError("called with incorrect number of arguments");
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return false;
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}
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const char* variable = args[0].c_str();
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// unset(ENV{VAR})
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if (!strncmp(variable,"ENV{",4) && strlen(variable) > 5)
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{
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// what is the variable name
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char *envVarName = new char [strlen(variable)];
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strncpy(envVarName,variable+4,strlen(variable)-5);
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envVarName[strlen(variable)-5] = '\0';
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#ifdef CMAKE_BUILD_WITH_CMAKE
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cmSystemTools::UnsetEnv(envVarName);
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#endif
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delete[] envVarName;
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return true;
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}
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// unset(VAR)
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else if (args.size() == 1)
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{
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this->Makefile->RemoveDefinition(variable);
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return true;
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}
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// unset(VAR CACHE)
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else if ((args.size() == 2) && (args[1] == "CACHE"))
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{
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this->Makefile->RemoveCacheDefinition(variable);
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return true;
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}
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// ERROR: second argument isn't CACHE
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else
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{
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this->SetError("called with an invalid second argument");
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return false;
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}
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}
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