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/*============================================================================
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 cmPolicies_h
#define cmPolicies_h
#include "cmCustomCommand.h"
class cmake;
class cmMakefile;
class cmPolicy;
/** \class cmPolicies
* \brief Handles changes in CMake behavior and policies
*
* See the cmake wiki section on policies for an overview of this class's
* purpose
*/
class cmPolicies
{
public:
cmPolicies();
~cmPolicies();
enum PolicyStatus { OLD, WARN, NEW, REQUIRED_IF_USED, REQUIRED_ALWAYS };
static const char* PolicyStatusNames[];
enum PolicyID
{
CMP0000, // Policy version specification
CMP0001, // Ignore old compatibility variable
CMP0002, // Target names must be unique
CMP0003, // Linking does not include extra -L paths
CMP0004, // Libraries linked may not have leading or trailing whitespace
CMP0005, // Definition value escaping
CMP0006, // BUNDLE install rules needed for MACOSX_BUNDLE targets
CMP0007, // list command handling of empty elements
CMP0008, // Full-path libraries must be a valid library file name
CMP0009, // GLOB_RECURSE should not follow symlinks by default
CMP0010, // Bad variable reference syntax is an error
CMP0011, // Strong policy scope for include and find_package
CMP0012, // Recognize numbers and boolean constants in if()
CMP0013, // Duplicate binary directories not allowed
CMP0014, // Input directories must have CMakeLists.txt
CMP0015, // link_directories() treats paths relative to source dir
CMP0016, // target_link_libraries() fails if only argument is not a target
// Always the last entry. Useful mostly to avoid adding a comma
// the last policy when adding a new one.
CMPCOUNT
};
///! convert a string policy ID into a number
bool GetPolicyID(const char *id, /* out */ cmPolicies::PolicyID &pid);
std::string GetPolicyIDString(cmPolicies::PolicyID pid);
///! Get the default status for a policy
cmPolicies::PolicyStatus GetPolicyStatus(cmPolicies::PolicyID id);
///! Define a Policy for CMake
void DefinePolicy(cmPolicies::PolicyID id,
const char *stringID,
const char *shortDescription,
const char *longDescription,
unsigned int majorVersionIntroduced,
unsigned int minorVersionIntroduced,
unsigned int patchVersionIntroduced,
unsigned int tweakVersionIntroduced,
cmPolicies::PolicyStatus status);
///! Set a policy level for this listfile
bool ApplyPolicyVersion(cmMakefile *mf, const char *version);
///! return a warning string for a given policy
std::string GetPolicyWarning(cmPolicies::PolicyID id);
///! return an error string for when a required policy is unspecified
std::string GetRequiredPolicyError(cmPolicies::PolicyID id);
///! return an error string for when a required policy is unspecified
std::string GetRequiredAlwaysPolicyError(cmPolicies::PolicyID id);
///! Get docs for policies
void GetDocumentation(std::vector<cmDocumentationEntry>& v);
/** Represent a set of policy values. */
typedef std::map<PolicyID, PolicyStatus> PolicyMap;
private:
// might have to make these internal for VS6 not sure yet
std::map<PolicyID,cmPolicy *> Policies;
std::map<std::string,PolicyID> PolicyStringMap;
void DiagnoseAncientPolicies(std::vector<PolicyID> const& ancient,
unsigned int majorVer, unsigned int minorVer,
unsigned int patchVer, cmMakefile* mf);
};
#endif
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