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b655865bbf
Add a new signature to help populate INTERFACE_LINK_LIBRARIES and LINK_LIBRARIES cleanly in a single call. Add policy CMP0023 to control whether the keyword signatures can be mixed with uses of the plain signatures on the same target.
137 lines
5.2 KiB
C++
137 lines
5.2 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 cmPolicies_h
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#define cmPolicies_h
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#include "cmCustomCommand.h"
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class cmake;
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class cmMakefile;
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class cmPolicy;
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/** \class cmPolicies
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* \brief Handles changes in CMake behavior and policies
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*
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* See the cmake wiki section on
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* <a href="http://www.cmake.org/Wiki/CMake/Policies">policies</a>
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* for an overview of this class's purpose
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*/
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class cmPolicies
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{
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public:
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cmPolicies();
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~cmPolicies();
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/// Status of a policy
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enum PolicyStatus {
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OLD, ///< Use old behavior
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WARN, ///< Use old behavior but issue a warning
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NEW, ///< Use new behavior
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/// Issue an error if user doesn't set policy status to NEW and hits the
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/// check
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REQUIRED_IF_USED,
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REQUIRED_ALWAYS ///< Issue an error unless user sets policy status to NEW.
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};
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static const char* PolicyStatusNames[];
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/// Policy identifiers
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enum PolicyID
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{
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CMP0000, ///< Policy version specification
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CMP0001, ///< Ignore old compatibility variable
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CMP0002, ///< Target names must be unique
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CMP0003, ///< Linking does not include extra -L paths
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CMP0004, ///< Libraries linked may not have leading or trailing whitespace
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CMP0005, ///< Definition value escaping
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CMP0006, ///< BUNDLE install rules needed for MACOSX_BUNDLE targets
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CMP0007, ///< list command handling of empty elements
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CMP0008, ///< Full-path libraries must be a valid library file name
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CMP0009, ///< GLOB_RECURSE should not follow symlinks by default
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CMP0010, ///< Bad variable reference syntax is an error
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CMP0011, ///< Strong policy scope for include and find_package
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CMP0012, ///< Recognize numbers and boolean constants in if()
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CMP0013, ///< Duplicate binary directories not allowed
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CMP0014, ///< Input directories must have CMakeLists.txt
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CMP0015, ///< link_directories() treats paths relative to source dir
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/// target_link_libraries() fails if only argument is not a target
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CMP0016,
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CMP0017, ///< Prefer files in CMAKE_ROOT when including from CMAKE_ROOT
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CMP0018, ///< Ignore language flags for shared libs, and adhere to
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/// POSITION_INDEPENDENT_CODE property and *_COMPILE_OPTIONS_PI{E,C}
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/// instead.
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CMP0019, ///< No variable re-expansion in include and link info
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CMP0020, ///< Automatically link Qt executables to qtmain target
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CMP0021, ///< Fatal error on relative paths in INCLUDE_DIRECTORIES
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/// target property
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CMP0022, ///< INTERFACE_LINK_LIBRARIES defines the link interface
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CMP0023, ///< Disallow mixing keyword and plain tll signatures
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/** \brief Always the last entry.
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*
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* Useful mostly to avoid adding a comma the last policy when adding a new
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* one.
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*/
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CMPCOUNT
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};
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///! convert a string policy ID into a number
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bool GetPolicyID(const char *id, /* out */ cmPolicies::PolicyID &pid);
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std::string GetPolicyIDString(cmPolicies::PolicyID pid);
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///! Get the default status for a policy
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cmPolicies::PolicyStatus GetPolicyStatus(cmPolicies::PolicyID id);
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///! Define a Policy for CMake
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void DefinePolicy(cmPolicies::PolicyID id,
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const char *stringID,
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const char *shortDescription,
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const char *longDescription,
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unsigned int majorVersionIntroduced,
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unsigned int minorVersionIntroduced,
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unsigned int patchVersionIntroduced,
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unsigned int tweakVersionIntroduced,
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cmPolicies::PolicyStatus status);
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///! Set a policy level for this listfile
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bool ApplyPolicyVersion(cmMakefile *mf, const char *version);
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///! return a warning string for a given policy
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std::string GetPolicyWarning(cmPolicies::PolicyID id);
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///! return an error string for when a required policy is unspecified
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std::string GetRequiredPolicyError(cmPolicies::PolicyID id);
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///! return an error string for when a required policy is unspecified
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std::string GetRequiredAlwaysPolicyError(cmPolicies::PolicyID id);
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///! Get docs for policies
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void GetDocumentation(std::vector<cmDocumentationEntry>& v);
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/** Represent a set of policy values. */
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typedef std::map<PolicyID, PolicyStatus> PolicyMap;
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private:
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// might have to make these internal for VS6 not sure yet
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std::map<PolicyID,cmPolicy *> Policies;
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std::map<std::string,PolicyID> PolicyStringMap;
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void DiagnoseAncientPolicies(std::vector<PolicyID> const& ancient,
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unsigned int majorVer, unsigned int minorVer,
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unsigned int patchVer, cmMakefile* mf);
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bool GetPolicyDefault(cmMakefile* mf, std::string const& policy,
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cmPolicies::PolicyStatus* defaultStatus);
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};
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#endif
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