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-rw-r--r--Modules/Compiler/Intel-CXX-FeatureTests.cmake2
-rw-r--r--Modules/Compiler/MSVC-CXX-FeatureTests.cmake6
2 files changed, 3 insertions, 5 deletions
diff --git a/Modules/Compiler/Intel-CXX-FeatureTests.cmake b/Modules/Compiler/Intel-CXX-FeatureTests.cmake
index aa35b97..bbefe15 100644
--- a/Modules/Compiler/Intel-CXX-FeatureTests.cmake
+++ b/Modules/Compiler/Intel-CXX-FeatureTests.cmake
@@ -24,7 +24,7 @@ set(DETECT_CXX14 "((__cplusplus >= 201300L) || ((__cplusplus == 201103L) && !def
unset(DETECT_BUGGY_ICC15)
set(Intel17_CXX14 "__INTEL_COMPILER >= 1700 && ${DETECT_CXX14}")
-set(_cmake_feature_test_cxx_relaxed_constexpr "__cpp_constexpr >= 201304 || (${Intel17_CXX14} && !(__INTEL_COMPILER == 1800 && __INTEL_COMPILER_UPDATE < 5) && !defined(_MSC_VER))")
+set(_cmake_feature_test_cxx_relaxed_constexpr "__cpp_constexpr >= 201304 || (${Intel17_CXX14} && !defined(_MSC_VER))")
set(Intel16_CXX14 "__INTEL_COMPILER >= 1600 && ${DETECT_CXX14}")
set(_cmake_feature_test_cxx_aggregate_default_initializers "${Intel16_CXX14}")
diff --git a/Modules/Compiler/MSVC-CXX-FeatureTests.cmake b/Modules/Compiler/MSVC-CXX-FeatureTests.cmake
index 9c604f2..125974a 100644
--- a/Modules/Compiler/MSVC-CXX-FeatureTests.cmake
+++ b/Modules/Compiler/MSVC-CXX-FeatureTests.cmake
@@ -9,10 +9,8 @@ set(_cmake_oldestSupported "_MSC_VER >= 1600")
# https://docs.microsoft.com/en-us/cpp/cpp-conformance-improvements-2017#update_153
set(_cmake_feature_test_cxx_decltype_incomplete_return_types "_MSC_VER >= 1911")
-set(MSVC_2017 "_MSC_VER >= 1910")
-# VS 2017 introduces support for "N3652 Extended constexpr"
-# but as of v15.6 there are still bugs in the implementation
-#set(_cmake_feature_test_cxx_relaxed_constexpr "${MSVC_2017}")
+# VS 2017 v15.3 fixes support for "N3652 Extended constexpr"
+set(_cmake_feature_test_cxx_relaxed_constexpr "_MSC_VER >= 1911")
# VS 2017 Preview introduces support for aggregate initializers.
set(_cmake_feature_test_cxx_aggregate_default_initializers "_MSC_FULL_VER >= 190024406")