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