mirror of
https://github.com/reactos/CMake.git
synced 2025-02-06 11:58:30 +00:00
96afb12087
This converts the CMake license to a pure 3-clause OSI-approved BSD License. We drop the previous license clause requiring modified versions to be plainly marked. We also update the CMake copyright to cover the full development time range.
430 lines
13 KiB
C++
430 lines
13 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 "cmFindCommon.h"
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//----------------------------------------------------------------------------
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cmFindCommon::cmFindCommon()
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{
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this->FindRootPathMode = RootPathModeBoth;
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this->NoDefaultPath = false;
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this->NoCMakePath = false;
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this->NoCMakeEnvironmentPath = false;
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this->NoSystemEnvironmentPath = false;
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this->NoCMakeSystemPath = false;
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// OS X Bundle and Framework search policy. The default is to
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// search frameworks first on apple.
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#if defined(__APPLE__)
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this->SearchFrameworkFirst = true;
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this->SearchAppBundleFirst = true;
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#else
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this->SearchFrameworkFirst = false;
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this->SearchAppBundleFirst = false;
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#endif
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this->SearchFrameworkOnly = false;
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this->SearchFrameworkLast = false;
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this->SearchAppBundleOnly = false;
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this->SearchAppBundleLast = false;
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// Documentation components.
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this->GenericDocumentationMacPolicy =
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"On Darwin or systems supporting OS X Frameworks, the cmake variable"
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" CMAKE_FIND_FRAMEWORK can be set to empty or one of the following:\n"
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" \"FIRST\" - Try to find frameworks before standard\n"
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" libraries or headers. This is the default on Darwin.\n"
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" \"LAST\" - Try to find frameworks after standard\n"
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" libraries or headers.\n"
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" \"ONLY\" - Only try to find frameworks.\n"
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" \"NEVER\" - Never try to find frameworks.\n"
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"On Darwin or systems supporting OS X Application Bundles, the cmake "
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"variable CMAKE_FIND_APPBUNDLE can be set to empty or one of the "
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"following:\n"
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" \"FIRST\" - Try to find application bundles before standard\n"
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" programs. This is the default on Darwin.\n"
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" \"LAST\" - Try to find application bundles after standard\n"
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" programs.\n"
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" \"ONLY\" - Only try to find application bundles.\n"
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" \"NEVER\" - Never try to find application bundles.\n";
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this->GenericDocumentationRootPath =
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"The CMake variable CMAKE_FIND_ROOT_PATH specifies one or more "
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"directories to be prepended to all other search directories. "
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"This effectively \"re-roots\" the entire search under given locations. "
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"By default it is empty. It is especially useful when "
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"cross-compiling to point to the root directory of the "
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"target environment and CMake will search there too. By default at first "
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"the directories listed in CMAKE_FIND_ROOT_PATH and then the non-rooted "
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"directories will be searched. "
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"The default behavior can be adjusted by setting "
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"CMAKE_FIND_ROOT_PATH_MODE_XXX. This behavior can be manually "
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"overridden on a per-call basis. "
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"By using CMAKE_FIND_ROOT_PATH_BOTH the search order will "
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"be as described above. If NO_CMAKE_FIND_ROOT_PATH is used "
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"then CMAKE_FIND_ROOT_PATH will not be used. If ONLY_CMAKE_FIND_ROOT_PATH "
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"is used then only the re-rooted directories will be searched.\n";
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this->GenericDocumentationPathsOrder =
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"The default search order is designed to be most-specific to "
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"least-specific for common use cases. "
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"Projects may override the order by simply calling the command "
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"multiple times and using the NO_* options:\n"
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" FIND_XXX(FIND_ARGS_XXX PATHS paths... NO_DEFAULT_PATH)\n"
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" FIND_XXX(FIND_ARGS_XXX)\n"
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"Once one of the calls succeeds the result variable will be set "
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"and stored in the cache so that no call will search again.";
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}
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//----------------------------------------------------------------------------
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cmFindCommon::~cmFindCommon()
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{
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}
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//----------------------------------------------------------------------------
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void cmFindCommon::SelectDefaultRootPathMode()
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{
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// Use both by default.
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this->FindRootPathMode = RootPathModeBoth;
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// Check the policy variable for this find command type.
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std::string findRootPathVar = "CMAKE_FIND_ROOT_PATH_MODE_";
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findRootPathVar += this->CMakePathName;
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std::string rootPathMode =
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this->Makefile->GetSafeDefinition(findRootPathVar.c_str());
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if (rootPathMode=="NEVER")
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{
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this->FindRootPathMode = RootPathModeNoRootPath;
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}
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else if (rootPathMode=="ONLY")
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{
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this->FindRootPathMode = RootPathModeOnlyRootPath;
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}
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else if (rootPathMode=="BOTH")
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{
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this->FindRootPathMode = RootPathModeBoth;
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}
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}
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//----------------------------------------------------------------------------
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void cmFindCommon::SelectDefaultMacMode()
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{
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std::string ff = this->Makefile->GetSafeDefinition("CMAKE_FIND_FRAMEWORK");
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if(ff == "NEVER")
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{
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this->SearchFrameworkLast = false;
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this->SearchFrameworkFirst = false;
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this->SearchFrameworkOnly = false;
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}
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else if(ff == "ONLY")
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{
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this->SearchFrameworkLast = false;
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this->SearchFrameworkFirst = false;
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this->SearchFrameworkOnly = true;
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}
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else if(ff == "FIRST")
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{
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this->SearchFrameworkLast = false;
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this->SearchFrameworkFirst = true;
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this->SearchFrameworkOnly = false;
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}
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else if(ff == "LAST")
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{
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this->SearchFrameworkLast = true;
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this->SearchFrameworkFirst = false;
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this->SearchFrameworkOnly = false;
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}
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std::string fab = this->Makefile->GetSafeDefinition("CMAKE_FIND_APPBUNDLE");
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if(fab == "NEVER")
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{
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this->SearchAppBundleLast = false;
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this->SearchAppBundleFirst = false;
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this->SearchAppBundleOnly = false;
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}
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else if(fab == "ONLY")
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{
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this->SearchAppBundleLast = false;
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this->SearchAppBundleFirst = false;
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this->SearchAppBundleOnly = true;
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}
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else if(fab == "FIRST")
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{
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this->SearchAppBundleLast = false;
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this->SearchAppBundleFirst = true;
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this->SearchAppBundleOnly = false;
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}
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else if(fab == "LAST")
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{
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this->SearchAppBundleLast = true;
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this->SearchAppBundleFirst = false;
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this->SearchAppBundleOnly = false;
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}
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}
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//----------------------------------------------------------------------------
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void cmFindCommon::RerootPaths(std::vector<std::string>& paths)
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{
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#if 0
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for(std::vector<std::string>::const_iterator i = paths.begin();
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i != paths.end(); ++i)
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{
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fprintf(stderr, "[%s]\n", i->c_str());
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}
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#endif
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// Short-circuit if there is nothing to do.
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if(this->FindRootPathMode == RootPathModeNoRootPath)
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{
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return;
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}
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const char* rootPath =
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this->Makefile->GetDefinition("CMAKE_FIND_ROOT_PATH");
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if((rootPath == 0) || (strlen(rootPath) == 0))
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{
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return;
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}
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// Construct the list of path roots with no trailing slashes.
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std::vector<std::string> roots;
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cmSystemTools::ExpandListArgument(rootPath, roots);
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for(std::vector<std::string>::iterator ri = roots.begin();
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ri != roots.end(); ++ri)
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{
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cmSystemTools::ConvertToUnixSlashes(*ri);
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}
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// Copy the original set of unrooted paths.
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std::vector<std::string> unrootedPaths = paths;
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paths.clear();
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for(std::vector<std::string>::const_iterator ri = roots.begin();
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ri != roots.end(); ++ri)
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{
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for(std::vector<std::string>::const_iterator ui = unrootedPaths.begin();
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ui != unrootedPaths.end(); ++ui)
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{
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// Place the unrooted path under the current root if it is not
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// already inside. Skip the unrooted path if it is relative to
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// a user home directory or is empty.
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std::string rootedDir;
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if(cmSystemTools::IsSubDirectory(ui->c_str(), ri->c_str()))
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{
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rootedDir = *ui;
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}
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else if(!ui->empty() && (*ui)[0] != '~')
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{
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// Start with the new root.
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rootedDir = *ri;
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rootedDir += "/";
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// Append the original path with its old root removed.
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rootedDir += cmSystemTools::SplitPathRootComponent(ui->c_str());
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}
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// Store the new path.
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paths.push_back(rootedDir);
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}
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}
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// If searching both rooted and unrooted paths add the original
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// paths again.
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if(this->FindRootPathMode == RootPathModeBoth)
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{
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paths.insert(paths.end(), unrootedPaths.begin(), unrootedPaths.end());
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}
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}
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//----------------------------------------------------------------------------
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bool cmFindCommon::CheckCommonArgument(std::string const& arg)
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{
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if(arg == "NO_DEFAULT_PATH")
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{
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this->NoDefaultPath = true;
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}
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else if(arg == "NO_CMAKE_ENVIRONMENT_PATH")
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{
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this->NoCMakeEnvironmentPath = true;
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}
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else if(arg == "NO_CMAKE_PATH")
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{
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this->NoCMakePath = true;
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}
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else if(arg == "NO_SYSTEM_ENVIRONMENT_PATH")
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{
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this->NoSystemEnvironmentPath = true;
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}
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else if(arg == "NO_CMAKE_SYSTEM_PATH")
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{
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this->NoCMakeSystemPath = true;
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}
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else if(arg == "NO_CMAKE_FIND_ROOT_PATH")
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{
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this->FindRootPathMode = RootPathModeNoRootPath;
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}
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else if(arg == "ONLY_CMAKE_FIND_ROOT_PATH")
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{
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this->FindRootPathMode = RootPathModeOnlyRootPath;
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}
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else if(arg == "CMAKE_FIND_ROOT_PATH_BOTH")
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{
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this->FindRootPathMode = RootPathModeBoth;
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}
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else
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{
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// The argument is not one of the above.
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return false;
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}
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// The argument is one of the above.
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return true;
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}
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//----------------------------------------------------------------------------
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void cmFindCommon::AddPathSuffix(std::string const& arg)
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{
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std::string suffix = arg;
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// Strip leading and trailing slashes.
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if(suffix.empty())
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{
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return;
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}
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if(suffix[0] == '/')
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{
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suffix = suffix.substr(1, suffix.npos);
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}
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if(suffix.empty())
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{
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return;
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}
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if(suffix[suffix.size()-1] == '/')
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{
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suffix = suffix.substr(0, suffix.size()-1);
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}
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if(suffix.empty())
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{
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return;
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}
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// Store the suffix.
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this->SearchPathSuffixes.push_back(suffix);
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}
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//----------------------------------------------------------------------------
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void cmFindCommon::AddUserPath(std::string const& p,
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std::vector<std::string>& paths)
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{
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// We should view the registry as the target application would view
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// it.
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cmSystemTools::KeyWOW64 view = cmSystemTools::KeyWOW64_32;
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cmSystemTools::KeyWOW64 other_view = cmSystemTools::KeyWOW64_64;
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if(const char* psize =
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this->Makefile->GetDefinition("CMAKE_SIZEOF_VOID_P"))
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{
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if(atoi(psize) == 8)
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{
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view = cmSystemTools::KeyWOW64_64;
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other_view = cmSystemTools::KeyWOW64_32;
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}
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}
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// Expand using the view of the target application.
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std::string expanded = p;
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cmSystemTools::ExpandRegistryValues(expanded, view);
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cmSystemTools::GlobDirs(expanded.c_str(), paths);
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// Executables can be either 32-bit or 64-bit, so expand using the
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// alternative view.
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if(expanded != p && this->CMakePathName == "PROGRAM")
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{
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expanded = p;
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cmSystemTools::ExpandRegistryValues(expanded, other_view);
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cmSystemTools::GlobDirs(expanded.c_str(), paths);
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}
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}
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//----------------------------------------------------------------------------
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void cmFindCommon::AddCMakePath(const char* variable)
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{
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// Get a path from a CMake variable.
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if(const char* varPath = this->Makefile->GetDefinition(variable))
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{
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std::vector<std::string> tmp;
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cmSystemTools::ExpandListArgument(varPath, tmp);
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// Relative paths are interpreted with respect to the current
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// source directory.
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this->AddPathsInternal(tmp, CMakePath);
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}
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}
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//----------------------------------------------------------------------------
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void cmFindCommon::AddEnvPath(const char* variable)
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{
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// Get a path from the environment.
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std::vector<std::string> tmp;
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cmSystemTools::GetPath(tmp, variable);
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// Relative paths are interpreted with respect to the current
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// working directory.
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this->AddPathsInternal(tmp, EnvPath);
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}
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//----------------------------------------------------------------------------
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void cmFindCommon::AddPathsInternal(std::vector<std::string> const& in_paths,
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PathType pathType)
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{
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for(std::vector<std::string>::const_iterator i = in_paths.begin();
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i != in_paths.end(); ++i)
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{
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this->AddPathInternal(*i, pathType);
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}
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}
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//----------------------------------------------------------------------------
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void cmFindCommon::AddPathInternal(std::string const& in_path,
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PathType pathType)
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{
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if(in_path.empty())
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{
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return;
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}
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// Select the base path with which to interpret relative paths.
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const char* relbase = 0;
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if(pathType == CMakePath)
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{
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relbase = this->Makefile->GetCurrentDirectory();
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}
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// Convert to clean full path.
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std::string fullPath =
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cmSystemTools::CollapseFullPath(in_path.c_str(), relbase);
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// Insert the path if has not already been emitted.
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if(this->SearchPathsEmitted.insert(fullPath).second)
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{
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this->SearchPaths.push_back(fullPath.c_str());
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}
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}
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//----------------------------------------------------------------------------
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void cmFindCommon::AddTrailingSlashes(std::vector<std::string>& paths)
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{
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// Add a trailing slash to all paths to aid the search process.
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for(std::vector<std::string>::iterator i = paths.begin();
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i != paths.end(); ++i)
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{
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std::string& p = *i;
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if(!p.empty() && p[p.size()-1] != '/')
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{
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p += "/";
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}
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}
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}
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