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ca39c5cdd1
Consider the case motivating commit e01cce28 (Allow add_dependencies()
on imported targets, 2010-11-19). An imported target references a file
generated at build time by a custom target on which it depends. Had the
file been built directly using add_library or add_executable its target
name would have been visible globally. Therefore the imported target
representing the file should be globally visible also.
Teach the IMPORTED signature of add_(executable|library) to accept a new
"GLOBAL" option to make the imported target visible globally.
123 lines
4.6 KiB
C++
123 lines
4.6 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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#ifndef cmLibrarysCommand_h
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#define cmLibrarysCommand_h
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#include "cmCommand.h"
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/** \class cmLibrarysCommand
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* \brief Defines a list of executables to build.
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*
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* cmLibrarysCommand defines a list of executable (i.e., test)
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* programs to create.
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*/
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class cmAddLibraryCommand : public cmCommand
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{
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public:
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/**
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* This is a virtual constructor for the command.
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*/
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virtual cmCommand* Clone()
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{
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return new cmAddLibraryCommand;
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}
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/**
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* This is called when the command is first encountered in
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* the CMakeLists.txt file.
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*/
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virtual bool InitialPass(std::vector<std::string> const& args,
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cmExecutionStatus &status);
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/**
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* The name of the command as specified in CMakeList.txt.
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*/
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virtual const char* GetName() { return "add_library";}
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/**
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* Succinct documentation.
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*/
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virtual const char* GetTerseDocumentation()
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{
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return "Add a library to the project using the specified source files.";
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}
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/**
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* More documentation.
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*/
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virtual const char* GetFullDocumentation()
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{
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return
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" add_library(<name> [STATIC | SHARED | MODULE]\n"
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" [EXCLUDE_FROM_ALL]\n"
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" source1 source2 ... sourceN)\n"
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"Adds a library target called <name> to be built from the "
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"source files listed in the command invocation. "
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"The <name> corresponds to the logical target name and must be "
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"globally unique within a project. "
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"The actual file name of the library built is constructed based on "
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"conventions of the native platform "
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"(such as lib<name>.a or <name>.lib)."
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"\n"
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"STATIC, SHARED, or MODULE may be given to specify the type of library "
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"to be created. "
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"STATIC libraries are archives of object files for use when linking "
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"other targets. "
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"SHARED libraries are linked dynamically and loaded at runtime. "
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"MODULE libraries are plugins that are not linked into other targets "
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"but may be loaded dynamically at runtime using dlopen-like "
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"functionality. "
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"If no type is given explicitly the type is STATIC or SHARED based "
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"on whether the current value of the variable BUILD_SHARED_LIBS is "
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"true."
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"\n"
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"By default the library file will be created in the build tree "
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"directory corresponding to the source tree directory in which "
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"the command was invoked. "
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"See documentation of the ARCHIVE_OUTPUT_DIRECTORY, "
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"LIBRARY_OUTPUT_DIRECTORY, and RUNTIME_OUTPUT_DIRECTORY "
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"target properties to change this location. "
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"See documentation of the OUTPUT_NAME target property to change "
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"the <name> part of the final file name. "
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"\n"
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"If EXCLUDE_FROM_ALL is given the corresponding property will be "
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"set on the created target. "
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"See documentation of the EXCLUDE_FROM_ALL target property for "
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"details."
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"\n"
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"The add_library command can also create IMPORTED library "
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"targets using this signature:\n"
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" add_library(<name> <SHARED|STATIC|MODULE|UNKNOWN> IMPORTED\n"
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" [GLOBAL])\n"
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"An IMPORTED library target references a library file located "
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"outside the project. "
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"No rules are generated to build it. "
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"The target name has scope in the directory in which it is created "
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"and below, but the GLOBAL option extends visibility. "
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"It may be referenced like any target built within the project. "
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"IMPORTED libraries are useful for convenient reference from "
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"commands like target_link_libraries. "
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"Details about the imported library are specified by setting "
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"properties whose names begin in \"IMPORTED_\". "
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"The most important such property is IMPORTED_LOCATION "
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"(and its per-configuration version IMPORTED_LOCATION_<CONFIG>) "
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"which specifies the location of the main library file on disk. "
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"See documentation of the IMPORTED_* properties for more information."
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;
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}
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cmTypeMacro(cmAddLibraryCommand, cmCommand);
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};
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#endif
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