id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
13026	Boost is not correctly configured on modern Mac with Intel C++ Compiler	Trifud	John Maddock	"Boost does not work properly on modern macOS, for example 10.11, with Intel C++ Compiler.

When compiling with default language/standard/compatibility flags, {{{select_compiler_config.hpp}}} picks up {{{intel.hpp}}} which does not define {{{BOOST_NO_RTTI}}} and {{{BOOST_NO_RTTI}}} due to {{{__INTEL_RTTI__}}}. This is wrong, since Intel C++ 2016 builds upon LLVM/Clang which does not have RTTI. As a result, if your application uses RTTI-dependent operators (like {{{typeid()}}}), it breaks.

When you compile with the following flags:

{{{-no-use-intel-optimized-headers -no-intel-extensions -no-icc -no-gcc}}}

...then Boost picks up {{{clang.hpp}}}. But the Clang version handling in this header file is broken since Apple has different versioning scheme for Clang.

However, if you use the flag {{{-clangxx-name=<clang>}}} with a custom Clang version, then the Clang versioning scheme is back to normal.

When building with Intel C++ on macOS, both Clang and Intel compiler specific settings need to be considered."	Bugs	closed	To Be Determined	config	Boost 1.64.0	Problem	obsolete	clang intel rtti macos