mirror of
https://github.com/reactos/CMake.git
synced 2024-12-14 23:29:57 +00:00
656 lines
19 KiB
C++
656 lines
19 KiB
C++
#include "cmPolicies.h"
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#include "cmake.h"
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#include "cmMakefile.h"
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#include "cmSourceFile.h"
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#include "cmVersion.h"
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#include "cmVersionMacros.h"
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#include <map>
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#include <set>
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#include <queue>
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#include <assert.h>
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const char* cmPolicies::PolicyStatusNames[] = {
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"OLD", "WARN", "NEW", "REQUIRED_IF_USED", "REQUIRED_ALWAYS"
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};
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class cmPolicy
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{
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public:
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cmPolicy(cmPolicies::PolicyID iD,
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const char *idString,
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const char *shortDescription,
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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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cmPolicies::PolicyStatus status)
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{
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if (!idString || !shortDescription)
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{
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cmSystemTools::Error("Attempt to define a policy without "
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"all parameters being specified!");
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return;
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}
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this->ID = iD;
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this->IDString = idString;
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this->ShortDescription = shortDescription;
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this->MajorVersionIntroduced = majorVersionIntroduced;
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this->MinorVersionIntroduced = minorVersionIntroduced;
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this->PatchVersionIntroduced = patchVersionIntroduced;
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this->Status = status;
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}
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std::string GetVersionString()
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{
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cmOStringStream v;
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v << this->MajorVersionIntroduced << "." << this->MinorVersionIntroduced;
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if(this->PatchVersionIntroduced > 0)
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{
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v << "." << this->PatchVersionIntroduced;
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}
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return v.str();
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}
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bool IsPolicyNewerThan(unsigned int majorV,
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unsigned int minorV,
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unsigned int patchV)
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{
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if (majorV < this->MajorVersionIntroduced)
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{
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return true;
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}
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if (majorV > this->MajorVersionIntroduced)
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{
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return false;
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}
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if (minorV < this->MinorVersionIntroduced)
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{
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return true;
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}
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if (minorV > this->MinorVersionIntroduced)
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{
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return false;
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}
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return (patchV < this->PatchVersionIntroduced);
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}
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cmPolicies::PolicyID ID;
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std::string IDString;
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std::string ShortDescription;
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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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cmPolicies::PolicyStatus Status;
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};
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cmPolicies::cmPolicies()
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{
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// define all the policies
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this->DefinePolicy(
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CMP0000, "CMP0000",
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"A minimum required CMake version must be specified.",
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2,6,0, cmPolicies::WARN
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);
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this->DefinePolicy(
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CMP0001, "CMP0001",
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"CMAKE_BACKWARDS_COMPATIBILITY should no longer be used.",
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2,6,0, cmPolicies::WARN
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);
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this->DefinePolicy(
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CMP0002, "CMP0002",
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"Logical target names must be globally unique.",
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2,6,0, cmPolicies::WARN
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);
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this->DefinePolicy(
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CMP0003, "CMP0003",
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"Libraries linked via full path no longer produce linker search paths.",
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2,6,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0004, "CMP0004",
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"Libraries linked may not have leading or trailing whitespace.",
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2,6,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0005, "CMP0005",
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"Preprocessor definition values are now escaped automatically.",
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2,6,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0006, "CMP0006",
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"Installing MACOSX_BUNDLE targets requires a BUNDLE DESTINATION.",
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2,6,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0007, "CMP0007",
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"list command no longer ignores empty elements.",
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2,6,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0008, "CMP0008",
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"Libraries linked by full-path must have a valid library file name.",
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2,6,1, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0009, "CMP0009",
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"FILE GLOB_RECURSE calls should not follow symlinks by default.",
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2,6,2, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0010, "CMP0010",
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"Bad variable reference syntax is an error.",
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2,6,3, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0011, "CMP0011",
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"Included scripts do automatic cmake_policy PUSH and POP.",
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2,6,3, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0012, "CMP0012",
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"if() recognizes numbers and boolean constants.",
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2,8,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0013, "CMP0013",
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"Duplicate binary directories are not allowed.",
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2,8,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0014, "CMP0014",
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"Input directories must have CMakeLists.txt.",
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2,8,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0015, "CMP0015",
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"link_directories() treats paths relative to the source dir.",
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2,8,1, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0016, "CMP0016",
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"target_link_libraries() reports error if its only argument "
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"is not a target.",
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2,8,3, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0017, "CMP0017",
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"Prefer files from the CMake module directory when including from there.",
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2,8,4, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0018, "CMP0018",
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"Ignore CMAKE_SHARED_LIBRARY_<Lang>_FLAGS variable.",
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2,8,9, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0019, "CMP0019",
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"Do not re-expand variables in include and link information.",
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2,8,11, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0020, "CMP0020",
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"Automatically link Qt executables to qtmain target on Windows.",
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2,8,11, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0021, "CMP0021",
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"Fatal error on relative paths in INCLUDE_DIRECTORIES target property.",
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2,8,12, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0022, "CMP0022",
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"INTERFACE_LINK_LIBRARIES defines the link interface.",
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2,8,12, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0023, "CMP0023",
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"Plain and keyword target_link_libraries signatures cannot be mixed.",
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2,8,12, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0024, "CMP0024",
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"Disallow include export result.",
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3,0,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0025, "CMP0025",
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"Compiler id for Apple Clang is now AppleClang.",
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3,0,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0026, "CMP0026",
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"Disallow use of the LOCATION target property.",
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3,0,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0027, "CMP0027",
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"Conditionally linked imported targets with missing include directories.",
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3,0,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0028, "CMP0028",
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"Double colon in target name means ALIAS or IMPORTED target.",
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3,0,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0029, "CMP0029",
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"The subdir_depends command should not be called.",
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3,0,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0030, "CMP0030",
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"The use_mangled_mesa command should not be called.",
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3,0,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0031, "CMP0031",
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"The load_command command should not be called.",
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3,0,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0032, "CMP0032",
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"The output_required_files command should not be called.",
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3,0,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0033, "CMP0033",
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"The export_library_dependencies command should not be called.",
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3,0,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0034, "CMP0034",
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"The utility_source command should not be called.",
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3,0,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0035, "CMP0035",
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"The variable_requires command should not be called.",
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3,0,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0036, "CMP0036",
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"The build_name command should not be called.",
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3,0,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0037, "CMP0037",
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"Target names should not be reserved and should match a validity pattern.",
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3,0,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0038, "CMP0038",
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"Targets may not link directly to themselves.",
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3,0,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0039, "CMP0039",
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"Utility targets may not have link dependencies.",
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3,0,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0040, "CMP0040",
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"The target in the TARGET signature of add_custom_command() must exist.",
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3,0,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0041, "CMP0041",
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"Error on relative include with generator expression.",
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3,0,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0042, "CMP0042",
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"MACOSX_RPATH is enabled by default.",
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3,0,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0043, "CMP0043",
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"Ignore COMPILE_DEFINITIONS_<Config> properties.",
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3,0,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0044, "CMP0044",
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"Case sensitive <LANG>_COMPILER_ID generator expressions.",
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3,0,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0045, "CMP0045",
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"Error on non-existent target in get_target_property.",
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3,0,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0046, "CMP0046",
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"Error on non-existent dependency in add_dependencies.",
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3,0,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0047, "CMP0047",
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"Use QCC compiler id for the qcc drivers on QNX.",
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3,0,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0048, "CMP0048",
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"project() command manages VERSION variables.",
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3,0,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0049, "CMP0049",
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"Do not expand variables in target source entries.",
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3,0,0, cmPolicies::WARN);
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this->DefinePolicy(
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CMP0050, "CMP0050",
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"Disallow add_custom_command SOURCE signatures.",
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3,0,0, cmPolicies::WARN);
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}
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cmPolicies::~cmPolicies()
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{
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// free the policies
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std::map<cmPolicies::PolicyID,cmPolicy *>::iterator i
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= this->Policies.begin();
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for (;i != this->Policies.end(); ++i)
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{
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delete i->second;
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}
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}
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void cmPolicies::DefinePolicy(cmPolicies::PolicyID iD,
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const char *idString,
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const char *shortDescription,
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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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cmPolicies::PolicyStatus status)
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{
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// a policy must be unique and can only be defined once
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if (this->Policies.find(iD) != this->Policies.end())
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{
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cmSystemTools::Error("Attempt to redefine a CMake policy for policy "
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"ID ", this->GetPolicyIDString(iD).c_str());
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return;
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}
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this->Policies[iD] = new cmPolicy(iD, idString,
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shortDescription,
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majorVersionIntroduced,
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minorVersionIntroduced,
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patchVersionIntroduced,
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status);
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this->PolicyStringMap[idString] = iD;
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}
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//----------------------------------------------------------------------------
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bool cmPolicies::ApplyPolicyVersion(cmMakefile *mf,
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const char *version)
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{
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std::string ver = "2.4.0";
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if (version && strlen(version) > 0)
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{
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ver = version;
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}
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unsigned int majorVer = 2;
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unsigned int minorVer = 0;
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unsigned int patchVer = 0;
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unsigned int tweakVer = 0;
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// parse the string
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if(sscanf(ver.c_str(), "%u.%u.%u.%u",
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&majorVer, &minorVer, &patchVer, &tweakVer) < 2)
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{
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cmOStringStream e;
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e << "Invalid policy version value \"" << ver << "\". "
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<< "A numeric major.minor[.patch[.tweak]] must be given.";
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mf->IssueMessage(cmake::FATAL_ERROR, e.str());
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return false;
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}
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// it is an error if the policy version is less than 2.4
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if (majorVer < 2 || (majorVer == 2 && minorVer < 4))
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{
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mf->IssueMessage(cmake::FATAL_ERROR,
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"Compatibility with CMake < 2.4 is not supported by CMake >= 3.0. "
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"For compatibility with older versions please use any CMake 2.8.x "
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"release or lower.");
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return false;
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}
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// It is an error if the policy version is greater than the running
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// CMake.
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if (majorVer > cmVersion::GetMajorVersion() ||
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(majorVer == cmVersion::GetMajorVersion() &&
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minorVer > cmVersion::GetMinorVersion()) ||
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(majorVer == cmVersion::GetMajorVersion() &&
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minorVer == cmVersion::GetMinorVersion() &&
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patchVer > cmVersion::GetPatchVersion()) ||
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(majorVer == cmVersion::GetMajorVersion() &&
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minorVer == cmVersion::GetMinorVersion() &&
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patchVer == cmVersion::GetPatchVersion() &&
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tweakVer > cmVersion::GetTweakVersion()))
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{
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cmOStringStream e;
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e << "An attempt was made to set the policy version of CMake to \""
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<< version << "\" which is greater than this version of CMake. "
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<< "This is not allowed because the greater version may have new "
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<< "policies not known to this CMake. "
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<< "You may need a newer CMake version to build this project.";
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mf->IssueMessage(cmake::FATAL_ERROR, e.str());
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return false;
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}
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// now loop over all the policies and set them as appropriate
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std::vector<cmPolicies::PolicyID> ancientPolicies;
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for(std::map<cmPolicies::PolicyID,cmPolicy *>::iterator i
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= this->Policies.begin(); i != this->Policies.end(); ++i)
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{
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if (i->second->IsPolicyNewerThan(majorVer,minorVer,patchVer))
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{
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if(i->second->Status == cmPolicies::REQUIRED_ALWAYS)
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{
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ancientPolicies.push_back(i->first);
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}
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else
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{
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cmPolicies::PolicyStatus status = cmPolicies::WARN;
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if(!this->GetPolicyDefault(mf, i->second->IDString, &status) ||
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!mf->SetPolicy(i->second->ID, status))
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{
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return false;
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}
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}
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}
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else
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{
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if (!mf->SetPolicy(i->second->ID, cmPolicies::NEW))
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{
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return false;
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}
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}
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}
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// Make sure the project does not use any ancient policies.
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if(!ancientPolicies.empty())
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{
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this->DiagnoseAncientPolicies(ancientPolicies,
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majorVer, minorVer, patchVer, mf);
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cmSystemTools::SetFatalErrorOccured();
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return false;
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}
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return true;
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}
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//----------------------------------------------------------------------------
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bool cmPolicies::GetPolicyDefault(cmMakefile* mf, std::string const& policy,
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cmPolicies::PolicyStatus* defaultSetting)
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{
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std::string defaultVar = "CMAKE_POLICY_DEFAULT_" + policy;
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std::string defaultValue = mf->GetSafeDefinition(defaultVar.c_str());
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if(defaultValue == "NEW")
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{
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*defaultSetting = cmPolicies::NEW;
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}
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else if(defaultValue == "OLD")
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{
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*defaultSetting = cmPolicies::OLD;
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}
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else if(defaultValue == "")
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{
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*defaultSetting = cmPolicies::WARN;
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}
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else
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{
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cmOStringStream e;
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e << defaultVar << " has value \"" << defaultValue
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<< "\" but must be \"OLD\", \"NEW\", or \"\" (empty).";
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mf->IssueMessage(cmake::FATAL_ERROR, e.str().c_str());
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return false;
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}
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return true;
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}
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bool cmPolicies::GetPolicyID(const char *id, cmPolicies::PolicyID &pid)
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{
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if (!id || strlen(id) < 1)
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{
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return false;
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}
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std::map<std::string,cmPolicies::PolicyID>::iterator pos =
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this->PolicyStringMap.find(id);
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if (pos == this->PolicyStringMap.end())
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{
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return false;
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}
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pid = pos->second;
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return true;
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}
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std::string cmPolicies::GetPolicyIDString(cmPolicies::PolicyID pid)
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{
|
|
std::map<cmPolicies::PolicyID,cmPolicy *>::iterator pos =
|
|
this->Policies.find(pid);
|
|
if (pos == this->Policies.end())
|
|
{
|
|
return "";
|
|
}
|
|
return pos->second->IDString;
|
|
}
|
|
|
|
|
|
///! return a warning string for a given policy
|
|
std::string cmPolicies::GetPolicyWarning(cmPolicies::PolicyID id)
|
|
{
|
|
std::map<cmPolicies::PolicyID,cmPolicy *>::iterator pos =
|
|
this->Policies.find(id);
|
|
if (pos == this->Policies.end())
|
|
{
|
|
cmSystemTools::Error(
|
|
"Request for warning text for undefined policy!");
|
|
return "Request for warning text for undefined policy!";
|
|
}
|
|
|
|
cmOStringStream msg;
|
|
msg <<
|
|
"Policy " << pos->second->IDString << " is not set: "
|
|
"" << pos->second->ShortDescription << " "
|
|
"Run \"cmake --help-policy " << pos->second->IDString << "\" for "
|
|
"policy details. "
|
|
"Use the cmake_policy command to set the policy "
|
|
"and suppress this warning.";
|
|
return msg.str();
|
|
}
|
|
|
|
|
|
///! return an error string for when a required policy is unspecified
|
|
std::string cmPolicies::GetRequiredPolicyError(cmPolicies::PolicyID id)
|
|
{
|
|
std::map<cmPolicies::PolicyID,cmPolicy *>::iterator pos =
|
|
this->Policies.find(id);
|
|
if (pos == this->Policies.end())
|
|
{
|
|
cmSystemTools::Error(
|
|
"Request for error text for undefined policy!");
|
|
return "Request for error text for undefined policy!";
|
|
}
|
|
|
|
cmOStringStream error;
|
|
error <<
|
|
"Policy " << pos->second->IDString << " is not set to NEW: "
|
|
"" << pos->second->ShortDescription << " "
|
|
"Run \"cmake --help-policy " << pos->second->IDString << "\" for "
|
|
"policy details. "
|
|
"CMake now requires this policy to be set to NEW by the project. "
|
|
"The policy may be set explicitly using the code\n"
|
|
" cmake_policy(SET " << pos->second->IDString << " NEW)\n"
|
|
"or by upgrading all policies with the code\n"
|
|
" cmake_policy(VERSION " << pos->second->GetVersionString() <<
|
|
") # or later\n"
|
|
"Run \"cmake --help-command cmake_policy\" for more information.";
|
|
return error.str();
|
|
}
|
|
|
|
///! Get the default status for a policy
|
|
cmPolicies::PolicyStatus
|
|
cmPolicies::GetPolicyStatus(cmPolicies::PolicyID id)
|
|
{
|
|
// if the policy is not know then what?
|
|
std::map<cmPolicies::PolicyID,cmPolicy *>::iterator pos =
|
|
this->Policies.find(id);
|
|
if (pos == this->Policies.end())
|
|
{
|
|
// TODO is this right?
|
|
return cmPolicies::WARN;
|
|
}
|
|
|
|
return pos->second->Status;
|
|
}
|
|
|
|
//----------------------------------------------------------------------------
|
|
std::string
|
|
cmPolicies::GetRequiredAlwaysPolicyError(cmPolicies::PolicyID id)
|
|
{
|
|
std::string pid = this->GetPolicyIDString(id);
|
|
cmOStringStream e;
|
|
e << "Policy " << pid << " may not be set to OLD behavior because this "
|
|
<< "version of CMake no longer supports it. "
|
|
<< "The policy was introduced in "
|
|
<< "CMake version " << this->Policies[id]->GetVersionString()
|
|
<< ", and use of NEW behavior is now required."
|
|
<< "\n"
|
|
<< "Please either update your CMakeLists.txt files to conform to "
|
|
<< "the new behavior or use an older version of CMake that still "
|
|
<< "supports the old behavior. "
|
|
<< "Run cmake --help-policy " << pid << " for more information.";
|
|
return e.str();
|
|
}
|
|
|
|
//----------------------------------------------------------------------------
|
|
void
|
|
cmPolicies::DiagnoseAncientPolicies(std::vector<PolicyID> const& ancient,
|
|
unsigned int majorVer,
|
|
unsigned int minorVer,
|
|
unsigned int patchVer,
|
|
cmMakefile* mf)
|
|
{
|
|
cmOStringStream e;
|
|
e << "The project requests behavior compatible with CMake version \""
|
|
<< majorVer << "." << minorVer << "." << patchVer
|
|
<< "\", which requires the OLD behavior for some policies:\n";
|
|
for(std::vector<PolicyID>::const_iterator
|
|
i = ancient.begin(); i != ancient.end(); ++i)
|
|
{
|
|
cmPolicy const* policy = this->Policies[*i];
|
|
e << " " << policy->IDString << ": " << policy->ShortDescription << "\n";
|
|
}
|
|
e << "However, this version of CMake no longer supports the OLD "
|
|
<< "behavior for these policies. "
|
|
<< "Please either update your CMakeLists.txt files to conform to "
|
|
<< "the new behavior or use an older version of CMake that still "
|
|
<< "supports the old behavior.";
|
|
mf->IssueMessage(cmake::FATAL_ERROR, e.str().c_str());
|
|
}
|