CMake/Source/cmPolicies.h

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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"
#include <bitset>
class cmMakefile;
class cmPolicy;
#define CM_FOR_EACH_POLICY_TABLE(POLICY, SELECT) \
SELECT(POLICY, CMP0000, \
"A minimum required CMake version must be specified.", \
2, 6, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0001, \
"CMAKE_BACKWARDS_COMPATIBILITY should no longer be used.", \
2, 6, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0002, \
"Logical target names must be globally unique.", \
2, 6, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0003, \
"Libraries linked via full path no longer produce linker search paths.", \
2, 6, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0004, \
"Libraries linked may not have leading or trailing whitespace.", \
2, 6, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0005, \
"Preprocessor definition values are now escaped automatically.", \
2, 6, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0006, \
"Installing MACOSX_BUNDLE targets requires a BUNDLE DESTINATION.", \
2, 6, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0007, \
"list command no longer ignores empty elements.", \
2, 6, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0008, \
"Libraries linked by full-path must have a valid library file name.", \
2, 6, 1, cmPolicies::WARN) \
SELECT(POLICY, CMP0009, \
"FILE GLOB_RECURSE calls should not follow symlinks by default.", \
2, 6, 2, cmPolicies::WARN) \
SELECT(POLICY, CMP0010, \
"Bad variable reference syntax is an error.", \
2, 6, 3, cmPolicies::WARN) \
SELECT(POLICY, CMP0011, \
"Included scripts do automatic cmake_policy PUSH and POP.", \
2, 6, 3, cmPolicies::WARN) \
SELECT(POLICY, CMP0012, \
"if() recognizes numbers and boolean constants.", \
2, 8, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0013, \
"Duplicate binary directories are not allowed.", \
2, 8, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0014, \
"Input directories must have CMakeLists.txt.", \
2, 8, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0015, \
"link_directories() treats paths relative to the source dir.", \
2, 8, 1, cmPolicies::WARN) \
SELECT(POLICY, CMP0016, \
"target_link_libraries() reports error if its only argument " \
"is not a target.", \
2, 8, 3, cmPolicies::WARN) \
SELECT(POLICY, CMP0017, \
"Prefer files from the CMake module directory when including from " \
"there.", \
2, 8, 4, cmPolicies::WARN) \
SELECT(POLICY, CMP0018, \
"Ignore CMAKE_SHARED_LIBRARY_<Lang>_FLAGS variable.", \
2, 8, 9, cmPolicies::WARN) \
SELECT(POLICY, CMP0019, \
"Do not re-expand variables in include and link information.", \
2, 8, 11, cmPolicies::WARN) \
SELECT(POLICY, CMP0020, \
"Automatically link Qt executables to qtmain target on Windows.", \
2, 8, 11, cmPolicies::WARN) \
SELECT(POLICY, CMP0021, \
"Fatal error on relative paths in INCLUDE_DIRECTORIES target property.", \
2, 8, 12, cmPolicies::WARN) \
SELECT(POLICY, CMP0022, \
"INTERFACE_LINK_LIBRARIES defines the link interface.", \
2, 8, 12, cmPolicies::WARN) \
SELECT(POLICY, CMP0023, \
"Plain and keyword target_link_libraries signatures cannot be mixed.", \
2, 8, 12, cmPolicies::WARN) \
SELECT(POLICY, CMP0024, \
"Disallow include export result.", \
3, 0, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0025, \
"Compiler id for Apple Clang is now AppleClang.", \
3, 0, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0026, \
"Disallow use of the LOCATION target property.", \
3, 0, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0027, \
"Conditionally linked imported targets with missing include " \
"directories.", \
3, 0, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0028, \
"Double colon in target name means ALIAS or IMPORTED target.", \
3, 0, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0029, \
"The subdir_depends command should not be called.", \
3, 0, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0030, \
"The use_mangled_mesa command should not be called.", \
3, 0, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0031, \
"The load_command command should not be called.", \
3, 0, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0032, \
"The output_required_files command should not be called.", \
3, 0, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0033, \
"The export_library_dependencies command should not be called.", \
3, 0, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0034, \
"The utility_source command should not be called.", \
3, 0, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0035, \
"The variable_requires command should not be called.", \
3, 0, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0036, \
"The build_name command should not be called.", \
3, 0, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0037, \
"Target names should not be reserved and should match a validity " \
"pattern.", \
3, 0, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0038, \
"Targets may not link directly to themselves.", \
3, 0, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0039, \
"Utility targets may not have link dependencies.", \
3, 0, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0040, \
"The target in the TARGET signature of add_custom_command() must " \
"exist.", \
3, 0, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0041, \
"Error on relative include with generator expression.", \
3, 0, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0042, \
"MACOSX_RPATH is enabled by default.", \
3, 0, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0043, \
"Ignore COMPILE_DEFINITIONS_<Config> properties.", \
3, 0, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0044, \
"Case sensitive <LANG>_COMPILER_ID generator expressions.", \
3, 0, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0045, \
"Error on non-existent target in get_target_property.", \
3, 0, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0046, \
"Error on non-existent dependency in add_dependencies.", \
3, 0, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0047, \
"Use QCC compiler id for the qcc drivers on QNX.", \
3, 0, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0048, \
"project() command manages VERSION variables.", \
3, 0, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0049, \
"Do not expand variables in target source entries.", \
3, 0, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0050, \
"Disallow add_custom_command SOURCE signatures.", \
3, 0, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0051, \
"List TARGET_OBJECTS in SOURCES target property.", \
3, 1, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0052, \
"Reject source and build dirs in installed " \
"INTERFACE_INCLUDE_DIRECTORIES.", \
3, 1, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0053, \
"Simplify variable reference and escape sequence evaluation.", \
3, 1, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0054, \
"Only interpret if() arguments as variables or keywords when unquoted.", \
3, 1, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0055, \
"Strict checking for break() command.", \
3, 2, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0056, \
"Honor link flags in try_compile() source-file signature.", \
3, 2, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0057, \
"Support new IN_LIST if() operator.", \
3, 3, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0058, \
"Ninja requires custom command byproducts to be explicit.", \
3, 3, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0059, \
"Do no treat DEFINITIONS as a built-in directory property.", \
3, 3, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0060, \
"Link libraries by full path even in implicit directories.", \
3, 3, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0061, \
"CTest does not by default tell make to ignore errors (-i).", \
3, 3, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0062, \
"Disallow install() of export() result.", \
3, 3, 0, cmPolicies::WARN) \
SELECT(POLICY, CMP0063, \
"Honor visibility properties for all target types.", \
3, 3, 0, cmPolicies::WARN)
#define CM_SELECT_ID(F, A1, A2, A3, A4, A5, A6) F(A1)
#define CM_FOR_EACH_POLICY_ID(POLICY) \
CM_FOR_EACH_POLICY_TABLE(POLICY, CM_SELECT_ID)
/** \class cmPolicies
* \brief Handles changes in CMake behavior and policies
*
* See the cmake wiki section on
* <a href="http://www.cmake.org/Wiki/CMake/Policies">policies</a>
* for an overview of this class's purpose
*/
class cmPolicies
{
public:
/// Status of a policy
enum PolicyStatus {
OLD, ///< Use old behavior
WARN, ///< Use old behavior but issue a warning
NEW, ///< Use new behavior
/// Issue an error if user doesn't set policy status to NEW and hits the
/// check
REQUIRED_IF_USED,
REQUIRED_ALWAYS ///< Issue an error unless user sets policy status to NEW.
};
/// Policy identifiers
enum PolicyID
{
#define POLICY_ENUM(POLICY_ID) POLICY_ID,
CM_FOR_EACH_POLICY_ID(POLICY_ENUM)
#undef POLICY_ENUM
/** \brief Always the last entry.
*
* Useful mostly to avoid adding a comma the last policy when adding a new
* one.
*/
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CMPCOUNT
};
///! convert a string policy ID into a number
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static bool GetPolicyID(const char *id, /* out */ cmPolicies::PolicyID &pid);
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///! Get the default status for a policy
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static cmPolicies::PolicyStatus GetPolicyStatus(cmPolicies::PolicyID id);
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///! Set a policy level for this listfile
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static bool ApplyPolicyVersion(cmMakefile *mf, const char *version);
///! return a warning string for a given policy
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static 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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static std::string GetRequiredPolicyError(cmPolicies::PolicyID id);
///! return an error string for when a required policy is unspecified
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static std::string GetRequiredAlwaysPolicyError(cmPolicies::PolicyID id);
/** Represent a set of policy values. */
struct PolicyMap
{
PolicyMap();
PolicyStatus Get(PolicyID id) const;
void Set(PolicyID id, PolicyStatus status);
bool IsDefined(PolicyID id) const;
bool IsEmpty() const;
private:
std::bitset<cmPolicies::CMPCOUNT> UNDEFINED;
std::bitset<cmPolicies::CMPCOUNT> OLD;
std::bitset<cmPolicies::CMPCOUNT> NEW;
std::bitset<cmPolicies::CMPCOUNT> REQUIRED_IF_USED;
std::bitset<cmPolicies::CMPCOUNT> REQUIRED_ALWAYS;
};
};
#endif