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/*=========================================================================
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 "cmGlobalVisualStudioGenerator.h"
#include "cmLocalGenerator.h"
#include "cmMakefile.h"
#include "cmTarget.h"
//----------------------------------------------------------------------------
cmGlobalVisualStudioGenerator::cmGlobalVisualStudioGenerator()
{
}
//----------------------------------------------------------------------------
cmGlobalVisualStudioGenerator::~cmGlobalVisualStudioGenerator()
{
}
//----------------------------------------------------------------------------
void cmGlobalVisualStudioGenerator::Generate()
{
// Add a special target that depends on ALL projects for easy build
// of one configuration only.
const char* no_working_dir = 0;
std::vector<std::string> no_depends;
cmCustomCommandLines no_commands;
std::map<cmStdString, std::vector<cmLocalGenerator*> >::iterator it;
for(it = this->ProjectMap.begin(); it!= this->ProjectMap.end(); ++it)
{
std::vector<cmLocalGenerator*>& gen = it->second;
// add the ALL_BUILD to the first local generator of each project
if(gen.size())
{
// Use no actual command lines so that the target itself is not
// considered always out of date.
gen[0]->GetMakefile()->
AddUtilityCommand("ALL_BUILD", true, no_working_dir,
no_depends, no_commands, false,
"Build all projects");
}
}
// Fix utility dependencies to avoid linking to libraries.
this->FixUtilityDepends();
// Run all the local generators.
this->cmGlobalGenerator::Generate();
}
//----------------------------------------------------------------------------
void cmGlobalVisualStudioGenerator::FixUtilityDepends()
{
// For VS versions before 8:
//
// When a target that links contains a project-level dependency on a
// library target that library is automatically linked. In order to
// allow utility-style project-level dependencies that do not
// actually link we need to automatically insert an intermediate
// custom target.
//
// Here we edit the utility dependencies of a target to add the
// intermediate custom target when necessary.
for(unsigned i = 0; i < this->LocalGenerators.size(); ++i)
{
cmTargets* targets =
&(this->LocalGenerators[i]->GetMakefile()->GetTargets());
for(cmTargets::iterator tarIt = targets->begin();
tarIt != targets->end(); ++tarIt)
{
this->FixUtilityDependsForTarget(tarIt->second);
}
}
}
//----------------------------------------------------------------------------
void
cmGlobalVisualStudioGenerator::FixUtilityDependsForTarget(cmTarget& target)
{
// Only targets that link need to be fixed.
if(target.GetType() != cmTarget::STATIC_LIBRARY &&
target.GetType() != cmTarget::SHARED_LIBRARY &&
target.GetType() != cmTarget::MODULE_LIBRARY &&
target.GetType() != cmTarget::EXECUTABLE)
{
return;
}
// Look at each utility dependency.
for(std::set<cmStdString>::const_iterator ui =
target.GetUtilities().begin();
ui != target.GetUtilities().end(); ++ui)
{
if(cmTarget* depTarget = this->FindTarget(0, ui->c_str()))
{
if(depTarget->GetType() == cmTarget::STATIC_LIBRARY ||
depTarget->GetType() == cmTarget::SHARED_LIBRARY ||
depTarget->GetType() == cmTarget::MODULE_LIBRARY)
{
// This utility dependency will cause an attempt to link. If
// the depender does not already link the dependee we need an
// intermediate target.
if(!this->CheckTargetLinks(target, ui->c_str()))
{
this->CreateUtilityDependTarget(*depTarget);
}
}
}
}
}
//----------------------------------------------------------------------------
void
cmGlobalVisualStudioGenerator::CreateUtilityDependTarget(cmTarget& target)
{
// This target is a library on which a utility dependency exists.
// We need to create an intermediate custom target to hook up the
// dependency without causing a link.
const char* altName = target.GetProperty("ALTERNATIVE_DEPENDENCY_NAME");
if(!altName)
{
// Create the intermediate utility target.
std::string altNameStr = target.GetName();
altNameStr += "_UTILITY";
const std::vector<std::string> no_depends;
cmCustomCommandLines no_commands;
const char* no_working_dir = 0;
const char* no_comment = 0;
target.GetMakefile()->AddUtilityCommand(altNameStr.c_str(), true,
no_working_dir, no_depends,
no_commands, false, no_comment);
target.SetProperty("ALTERNATIVE_DEPENDENCY_NAME", altNameStr.c_str());
// Most targets have a GUID created in ConfigureFinalPass. Since
// that has already been called, create one for this target now.
this->CreateGUID(altNameStr.c_str());
// The intermediate target should depend on the original target.
if(cmTarget* alt = this->FindTarget(0, altNameStr.c_str()))
{
alt->AddUtility(target.GetName());
}
}
}
//----------------------------------------------------------------------------
bool cmGlobalVisualStudioGenerator::CheckTargetLinks(cmTarget& target,
const char* name)
{
// Return whether the given target links to a target with the given name.
if(target.GetType() == cmTarget::STATIC_LIBRARY)
{
// Static libraries never link to anything.
return false;
}
cmTarget::LinkLibraryVectorType const& libs = target.GetLinkLibraries();
for(cmTarget::LinkLibraryVectorType::const_iterator i = libs.begin();
i != libs.end(); ++i)
{
if(i->first == name)
{
return true;
}
}
return false;
}
//----------------------------------------------------------------------------
const char*
cmGlobalVisualStudioGenerator::GetUtilityForTarget(cmTarget& target,
const char* name)
{
// Handle the external MS project special case.
if(strncmp(name, "INCLUDE_EXTERNAL_MSPROJECT", 26) == 0)
{
// Note from Ken:
// kind of weird removing the first 27 letters. my
// recommendatsions: use cmCustomCommand::GetCommand() to get the
// project name or get rid of the target name starting with
// "INCLUDE_EXTERNAL_MSPROJECT_" and use another indicator/flag
// somewhere. These external project names shouldn't conflict
// with cmake target names anyways.
return name+27;
}
// Possibly depend on an intermediate utility target to avoid
// linking.
if(target.GetType() == cmTarget::STATIC_LIBRARY ||
target.GetType() == cmTarget::SHARED_LIBRARY ||
target.GetType() == cmTarget::MODULE_LIBRARY ||
target.GetType() == cmTarget::EXECUTABLE)
{
// The depender is a target that links. Lookup the dependee to
// see if it provides an alternative dependency name.
if(cmTarget* depTarget = this->FindTarget(0, name))
{
// Check for an alternative name created by FixUtilityDepends.
if(const char* altName =
depTarget->GetProperty("ALTERNATIVE_DEPENDENCY_NAME"))
{
// The alternative name is needed only if the depender does
// not really link to the dependee.
if(!this->CheckTargetLinks(target, name))
{
return altName;
}
}
}
}
// No special case. Just use the original dependency name.
return name;
}
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