| /*========================================================================= |
| |
| 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 "cmCMakeMinimumRequired.h" |
| |
| #include "cmVersion.h" |
| |
| // cmCMakeMinimumRequired |
| bool cmCMakeMinimumRequired::InitialPass(std::vector<std::string> const& args) |
| { |
| // Process arguments. |
| std::string version_string; |
| bool doing_version = false; |
| bool fatal_error = false; |
| for(unsigned int i=0; i < args.size(); ++i) |
| { |
| if(args[i] == "VERSION") |
| { |
| doing_version = true; |
| } |
| else if(args[i] == "FATAL_ERROR") |
| { |
| if(doing_version) |
| { |
| this->SetError("called with no value for VERSION."); |
| return false; |
| } |
| doing_version = false; |
| fatal_error = true; |
| } |
| else if(doing_version) |
| { |
| doing_version = false; |
| version_string = args[i]; |
| } |
| else |
| { |
| cmOStringStream e; |
| e << "called with unknown argument \"" << args[i].c_str() << "\"."; |
| this->SetError(e.str().c_str()); |
| return false; |
| } |
| } |
| if(doing_version) |
| { |
| this->SetError("called with no value for VERSION."); |
| return false; |
| } |
| |
| // Make sure there was a version to check. |
| if(version_string.empty()) |
| { |
| return true; |
| } |
| |
| // Save the required version string. |
| this->Makefile->AddDefinition("CMAKE_MINIMUM_REQUIRED_VERSION", |
| version_string.c_str()); |
| |
| |
| // Get the current version number. |
| int current_major = this->Makefile->GetMajorVersion(); |
| int current_minor = this->Makefile->GetMinorVersion(); |
| int current_patch = this->Makefile->GetPatchVersion(); |
| |
| // Parse the required version number. If no patch-level is given |
| // use zero. |
| int required_major = 0; |
| int required_minor = 0; |
| int required_patch = 0; |
| if(sscanf(version_string.c_str(), "%d.%d.%d", |
| &required_major, &required_minor, &required_patch) < 2) |
| { |
| cmOStringStream e; |
| e << "could not parse VERSION \"" << version_string.c_str() << "\"."; |
| this->SetError(e.str().c_str()); |
| return false; |
| } |
| |
| // Compare the version numbers. |
| if(current_major < required_major || |
| current_major == required_major && |
| current_minor < required_minor || |
| current_major == required_major && |
| current_minor == required_minor && |
| current_patch < required_patch) |
| { |
| // The current version is too low. |
| cmOStringStream e; |
| if(!fatal_error) |
| { |
| e << "WARNING: "; |
| } |
| e << "This project requires version " << version_string.c_str() |
| << " of CMake. " |
| << "You are running version " |
| << current_major << "." << current_minor << "." << current_patch |
| << ".\n"; |
| if(fatal_error) |
| { |
| cmSystemTools::Error(e.str().c_str()); |
| cmSystemTools::SetFatalErrorOccured(); |
| } |
| else |
| { |
| cmSystemTools::Message(e.str().c_str()); |
| } |
| } |
| |
| return true; |
| } |
| |