Genex: Use case-sensitive comparison for COMPILER_ID.
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policy
Tests
GeneratorExpression
RunCMake
CMP0043
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@ -93,3 +93,4 @@ All Policies
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/policy/CMP0041
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/policy/CMP0042
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/policy/CMP0043
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/policy/CMP0044
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@ -0,0 +1,19 @@
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CMP0044
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-------
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Case sensitive ``<LANG>_COMPILER_ID`` generator expressions
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CMake 2.8.12 introduced the ``<LANG>_COMPILER_ID``
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:manual:`generator expressions <cmake-generator-expressions(7)>` to allow
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comparison of the :variable:`CMAKE_<LANG>_COMPILER_ID` with a test value. The
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possible valid values are lowercase, but the comparison with the test value
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was performed case-insensitively.
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The OLD behavior for this policy is to perform a case-insensitive comparison
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with the value in the ``<LANG>_COMPILER_ID`` expression. The NEW behavior
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for this policy is to perform a case-sensitive comparison with the value in
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the ``<LANG>_COMPILER_ID`` expression.
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This policy was introduced in CMake version 3.0.0. CMake version
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|release| warns when the policy is not set and uses OLD behavior. Use
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the cmake_policy command to set it to OLD or NEW explicitly.
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@ -412,10 +412,32 @@ struct CompilerIdNode : public cmGeneratorExpressionNode
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return parameters.front().empty() ? "1" : "0";
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}
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if (cmsysString_strcasecmp(parameters.begin()->c_str(), compilerId) == 0)
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if (strcmp(parameters.begin()->c_str(), compilerId) == 0)
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{
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return "1";
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}
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if (cmsysString_strcasecmp(parameters.begin()->c_str(), compilerId) == 0)
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{
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switch(context->Makefile->GetPolicyStatus(cmPolicies::CMP0044))
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{
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case cmPolicies::WARN:
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{
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cmOStringStream e;
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e << context->Makefile->GetPolicies()
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->GetPolicyWarning(cmPolicies::CMP0044);
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context->Makefile->GetCMakeInstance()
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->IssueMessage(cmake::AUTHOR_WARNING,
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e.str().c_str(), context->Backtrace);
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}
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case cmPolicies::OLD:
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return "1";
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case cmPolicies::NEW:
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case cmPolicies::REQUIRED_ALWAYS:
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case cmPolicies::REQUIRED_IF_USED:
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break;
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}
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}
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return "0";
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}
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};
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@ -321,6 +321,11 @@ cmPolicies::cmPolicies()
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CMP0043, "CMP0043",
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"Ignore COMPILE_DEFINITIONS_<Config> properties.",
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3,0,0,0, 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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3,0,0,0, cmPolicies::WARN);
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}
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cmPolicies::~cmPolicies()
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@ -97,6 +97,7 @@ public:
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CMP0041, ///< Error on relative include with generator expression
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CMP0042, ///< Enable MACOSX_RPATH by default
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CMP0043, ///< Ignore COMPILE_DEFINITIONS_<Config> properties
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CMP0044, ///< Case sensitive <LANG>_COMPILER_ID generator expressions
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/** \brief Always the last entry.
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*
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@ -0,0 +1,19 @@
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string(TOLOWER ${CMAKE_C_COMPILER_ID} lc_test)
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if (lc_test STREQUAL CMAKE_C_COMPILER_ID)
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string(TOUPPER ${CMAKE_C_COMPILER_ID} lc_test)
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if (lc_test STREQUAL CMAKE_C_COMPILER_ID)
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message(SEND_ERROR "Try harder.")
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endif()
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endif()
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if (CMP0044_TYPE)
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cmake_policy(SET CMP0044 ${CMP0044_TYPE})
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endif()
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add_library(cmp0044-check-${CMP0044_TYPE} cmp0044-check.cpp)
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target_compile_definitions(cmp0044-check-${CMP0044_TYPE}
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PRIVATE
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Result=$<C_COMPILER_ID:${lc_test}>
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Type_Is_${CMP0044_TYPE}
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)
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@ -0,0 +1,26 @@
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#ifdef Type_Is_
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# if !Result
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# error Result should be 1 in WARN mode
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# endif
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#endif
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#ifdef Type_Is_NEW
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# if Result
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# error Result should be 0 in NEW mode
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# endif
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#endif
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#ifdef Type_Is_OLD
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# if !Result
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# error Result should be 1 in OLD mode
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# endif
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#endif
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#if !defined(Type_Is_) && !defined(Type_Is_OLD) && !defined(Type_Is_NEW)
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#error No expected definition present
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#endif
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void foo(void)
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{
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}
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@ -252,3 +252,9 @@ endforeach()
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add_test(echo-old-style echo "\$<CONFIGURATION>")
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set_property(TEST echo-old-style PROPERTY
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PASS_REGULAR_EXPRESSION "^\\$<CONFIGURATION>\n$")
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add_subdirectory(CMP0044 ${CMAKE_BINARY_DIR}/CMP0044-WARN)
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set(CMP0044_TYPE NEW)
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add_subdirectory(CMP0044 ${CMAKE_BINARY_DIR}/CMP0044-NEW)
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set(CMP0044_TYPE OLD)
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add_subdirectory(CMP0044 ${CMAKE_BINARY_DIR}/CMP0044-OLD)
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@ -1,3 +1,7 @@
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cmake_minimum_required(VERSION 2.8)
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project(${RunCMake_TEST} CXX)
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include(${RunCMake_TEST}.cmake NO_POLICY_SCOPE)
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if(CMAKE_BUILD_TYPE)
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# Dummy variable use
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endif()
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@ -0,0 +1 @@
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0
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@ -0,0 +1,7 @@
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CMake Warning \(dev\) at CMP0044-WARN.cmake:13 \(target_compile_definitions\):
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Policy CMP0044 is not set: Case sensitive <LANG>_COMPILER_ID generator
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expressions. Run "cmake --help-policy CMP0044" for policy details. Use
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the cmake_policy command to set the policy and suppress this warning.
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Call Stack \(most recent call first\):
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CMakeLists.txt:3 \(include\)
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This warning is for project developers. Use -Wno-dev to suppress it.
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@ -0,0 +1,17 @@
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project(CMP0044-WARN)
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string(TOLOWER ${CMAKE_C_COMPILER_ID} lc_test)
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if (lc_test STREQUAL CMAKE_C_COMPILER_ID)
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string(TOUPPER ${CMAKE_C_COMPILER_ID} lc_test)
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if (lc_test STREQUAL CMAKE_C_COMPILER_ID)
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message(SEND_ERROR "Try harder.")
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endif()
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endif()
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add_library(cmp0044-check empty.c)
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target_compile_definitions(cmp0044-check
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PRIVATE
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Result=$<C_COMPILER_ID:${lc_test}>
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Type_Is_${CMP0044_TYPE}
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)
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@ -9,3 +9,4 @@ run_cmake(BadZero)
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run_cmake(BadTargetName)
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run_cmake(BadTargetTypeObject)
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run_cmake(BadInstallPrefix)
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run_cmake(CMP0044-WARN)
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