CMake/Source/cmTargetLinkLibrariesCommand.h
Brad King ef10b87cc1 CMP0022: Plain target_link_libraries must populate link interface
The CMP0022 NEW behavior is that the INTERFACE_LINK_LIBRARIES property
exactly defines the link interface.  The plain target_link_libraries
signature says linking is transitive by default, so it should populate
the property.

Teach the target_link_libraries plain signature to populate the
INTERFACE_LINK_LIBRARIES regardless of the CMP0022 setting.  Refactor
the cmTarget::ComputeLinkInterface checks that warn when the policy is
not set to compare the new property to either the explicitly set old
link interface properties or the link implementation fallback for all
linkable target types, not just static libraries.

This fixes a regression in 2.8.12.0 that caused target_link_libraries to
not implement transitive linking in the plain signature once the policy
CMP0022 is set to NEW.
2013-11-02 12:55:17 -04:00

71 lines
2.1 KiB
C++

/*============================================================================
CMake - Cross Platform Makefile Generator
Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
Distributed under the OSI-approved BSD License (the "License");
see accompanying file Copyright.txt for details.
This software is distributed WITHOUT ANY WARRANTY; without even the
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the License for more information.
============================================================================*/
#ifndef cmTargetLinkLibrariesCommand_h
#define cmTargetLinkLibrariesCommand_h
#include "cmCommand.h"
/** \class cmTargetLinkLibrariesCommand
* \brief Specify a list of libraries to link into executables.
*
* cmTargetLinkLibrariesCommand is used to specify a list of libraries to link
* into executable(s) or shared objects. The names of the libraries
* should be those defined by the LIBRARY(library) command(s).
*/
class cmTargetLinkLibrariesCommand : public cmCommand
{
public:
/**
* This is a virtual constructor for the command.
*/
virtual cmCommand* Clone()
{
return new cmTargetLinkLibrariesCommand;
}
/**
* This is called when the command is first encountered in
* the CMakeLists.txt file.
*/
virtual bool InitialPass(std::vector<std::string> const& args,
cmExecutionStatus &status);
/**
* The name of the command as specified in CMakeList.txt.
*/
virtual const char* GetName() const { return "target_link_libraries";}
cmTypeMacro(cmTargetLinkLibrariesCommand, cmCommand);
private:
void LinkLibraryTypeSpecifierWarning(int left, int right);
static const char* LinkLibraryTypeNames[3];
cmTarget* Target;
enum ProcessingState {
ProcessingLinkLibraries,
ProcessingPlainLinkInterface,
ProcessingKeywordLinkInterface,
ProcessingPlainPublicInterface,
ProcessingKeywordPublicInterface,
ProcessingPlainPrivateInterface,
ProcessingKeywordPrivateInterface
};
ProcessingState CurrentProcessingState;
bool HandleLibrary(const char* lib, cmTarget::LinkLibraryType llt);
};
#endif