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Only print Visual Studio messages when compiling with MSVC

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When compiling with other compilers than MSVC, error messages about
C++11 support for versions below MSVC version 19.0.24210.0 were printed.
This happens, for example, when using clang-cl installed with the Visual
Studio Installer.
This commit is contained in:
Øystein Myrmo 2022-03-22 14:21:24 +01:00 committed by Davis E. King
parent 3b518f40ce
commit 4ebf3ef088
1 changed files with 1 additions and 1 deletions
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2
dlib/cmake_utils/set_compiler_specific_options.cmake
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@ -29,7 +29,7 @@ endif()
set(USING_OLD_VISUAL_STUDIO_COMPILER 0)
if(MSVC AND MSVC_VERSION VERSION_LESS 1900)
message(FATAL_ERROR "C++11 is required to use dlib, but the version of Visual Studio you are using is too old and doesn't support C++11. You need Visual Studio 2015 or newer. ")
elseif(MSVC AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 19.0.24210.0 )
elseif(MSVC AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 19.0.24210.0 AND "MSVC" MATCHES ${CMAKE_CXX_COMPILER_ID})
message(STATUS "NOTE: Visual Studio didn't have good enough C++11 support until Visual Studio 2015 update 3 (v19.0.24210.0)")
message(STATUS "So we aren't enabling things that require full C++11 support (e.g. the deep learning tools).")
message(STATUS "Also, be aware that Visual Studio's version naming is confusing, in particular, there are multiple versions of 'update 3'")