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9a77f65da7
We revert commit "Create CMake Policy CMP0015 to fix set(CACHE)" because the NEW behavior of the policy breaks a valid use case: # CMakeLists.txt option(BUILD_SHARED_LIBS "..." ON) add_library(mylib ...) set(BUILD_SHARED_LIBS OFF) # we want only mylib to be shared add_subdirectory(ThirdParty) # ThirdParty/CMakeLists.txt option(BUILD_SHARED_LIBS "..." ON) # uh, oh, with NEW behavior this dir uses shared libs!!! We'll re-introduce the policy later with a different change in behavior to resolve the motivating case, which was more subtle but less common. See issue #9008.
72 lines
2.2 KiB
C++
72 lines
2.2 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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#include "cmOptionCommand.h"
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// cmOptionCommand
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bool cmOptionCommand
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::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
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{
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bool argError = false;
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if(args.size() < 2)
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{
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argError = true;
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}
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// for VTK 4.0 we have to support the option command with more than 3
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// arguments if CMAKE_MINIMUM_REQUIRED_VERSION is not defined, if
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// CMAKE_MINIMUM_REQUIRED_VERSION is defined, then we can have stricter
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// checking.
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if(this->Makefile->GetDefinition("CMAKE_MINIMUM_REQUIRED_VERSION"))
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{
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if(args.size() > 3)
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{
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argError = true;
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}
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}
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if(argError)
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{
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std::string m = "called with incorrect number of arguments: ";
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for(size_t i =0; i < args.size(); ++i)
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{
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m += args[i];
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m += " ";
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}
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this->SetError(m.c_str());
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return false;
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}
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std::string initialValue = "Off";
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// Now check and see if the value has been stored in the cache
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// already, if so use that value and don't look for the program
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cmCacheManager::CacheIterator it =
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this->Makefile->GetCacheManager()->GetCacheIterator(args[0].c_str());
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if(!it.IsAtEnd())
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{
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if ( it.GetType() != cmCacheManager::UNINITIALIZED )
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{
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it.SetProperty("HELPSTRING", args[1].c_str());
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return true;
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}
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if ( it.GetValue() )
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{
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initialValue = it.GetValue();
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}
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}
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if(args.size() == 3)
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{
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initialValue = args[2];
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}
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bool init = cmSystemTools::IsOn(initialValue.c_str());
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this->Makefile->AddCacheDefinition(args[0].c_str(), init? "ON":"OFF",
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args[1].c_str(), cmCacheManager::BOOL);
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return true;
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}
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