diff options
Diffstat (limited to 'llvm/cmake/modules')
| -rw-r--r-- | llvm/cmake/modules/HandleLLVMOptions.cmake | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/llvm/cmake/modules/HandleLLVMOptions.cmake b/llvm/cmake/modules/HandleLLVMOptions.cmake index ba6114a4f56..14fda9284c9 100644 --- a/llvm/cmake/modules/HandleLLVMOptions.cmake +++ b/llvm/cmake/modules/HandleLLVMOptions.cmake @@ -21,11 +21,15 @@ if(NOT LLVM_FORCE_USE_OLD_TOOLCHAIN) message(FATAL_ERROR "Host Clang version must be at least 3.1!") endif() - # Also test that we aren't using too old of a version of libstdc++ with the - # Clang compiler. This is tricky as there is no real way to check the - # version of libstdc++ directly. Instead we test for a known bug in - # libstdc++4.6 that is fixed in libstdc++4.7. - if(NOT LLVM_ENABLE_LIBCXX) + if (CMAKE_CXX_SIMULATE_ID MATCHES "MSVC") + if (CMAKE_CXX_SIMULATE_VERSION VERSION_LESS 18.0) + message(FATAL_ERROR "Host Clang must have at least -fms-compatibility-version=18.0") + endif() + elseif(NOT LLVM_ENABLE_LIBCXX) + # Otherwise, test that we aren't using too old of a version of libstdc++ + # with the Clang compiler. This is tricky as there is no real way to + # check the version of libstdc++ directly. Instead we test for a known + # bug in libstdc++4.6 that is fixed in libstdc++4.7. set(OLD_CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS}) set(OLD_CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES}) set(CMAKE_REQUIRED_FLAGS "-std=c++0x") |
