mirror of
https://github.com/reactos/CMake.git
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111 lines
3.8 KiB
C++
111 lines
3.8 KiB
C++
/*=========================================================================
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Program: CMake - Cross-Platform Makefile Generator
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Module: $RCSfile$
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Language: C++
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Date: $Date$
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Version: $Revision$
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Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
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See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notices for more information.
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=========================================================================*/
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#ifndef cmFindPackageCommand_h
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#define cmFindPackageCommand_h
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#include "cmCommand.h"
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/** \class cmFindPackageCommand
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* \brief Load settings from an external project.
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*
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* cmFindPackageCommand
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*/
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class cmFindPackageCommand : 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 cmFindPackageCommand;
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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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/**
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* This determines if the command is invoked when in script mode.
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*/
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virtual bool IsScriptable() { return true; }
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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 "FIND_PACKAGE";}
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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 "Load settings for an external project.";
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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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" FIND_PACKAGE(<name> [major.minor] [QUIET] [NO_MODULE]\n"
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" [[REQUIRED|COMPONENTS] [components...]])\n"
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"Finds and loads settings from an external project. <name>_FOUND will "
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"be set to indicate whether the package was found. Settings that "
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"can be used when <name>_FOUND is true are package-specific. The "
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"package is found through several steps. "
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"Directories listed in CMAKE_MODULE_PATH are searched for files called "
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"\"Find<name>.cmake\". If such a file is found, it is read and "
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"processed by CMake, and is responsible for finding the package. "
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"This first step may be skipped by using the NO_MODULE option. "
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"If no such file is found, it is expected that the package is another "
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"project built by CMake that has a \"<name>Config.cmake\" file. "
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"A cache entry called <name>_DIR is created and is expected to be set "
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"to the directory containing this file. If the file is found, it is "
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"read and processed by CMake to load the settings of the package. If "
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"<name>_DIR has not been set during a configure step, the command "
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"will generate an error describing the problem unless the QUIET "
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"argument is specified. If <name>_DIR has been set to a directory "
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"not containing a \"<name>Config.cmake\" file, an error is always "
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"generated. If REQUIRED is specified and the package is not found, "
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"a FATAL_ERROR is generated and the configure step stops executing. "
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"A package-specific list of components may be listed after the "
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"REQUIRED option, or after the COMPONENTS option if no REQUIRED "
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"option is given.";
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}
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cmTypeMacro(cmFindPackageCommand, cmCommand);
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private:
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bool FindModule(bool& found, bool quiet, bool required);
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bool FindConfig();
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std::string SearchForConfig() const;
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bool ReadListFile(const char* f);
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cmStdString Name;
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cmStdString Variable;
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cmStdString Config;
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std::vector<cmStdString> Builds;
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std::vector<cmStdString> Prefixes;
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std::vector<cmStdString> Relatives;
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};
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#endif
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