id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
11606	Compile errors with Clang 3.7 (and earlier)	nikkikom@…	Joel de Guzman	"The problem is complicated and most probably belongs to **Boost.Fusion**. However I'm not very sure, and technically all tests from fusion compile, it's the test from spirit repository fails. So, I'm posting it under the spirit component.

The spirit/repository/test/qi/keywords.cpp does not compile with recent clang@apple with default preprocessor definitions. I'm attaching the compiler log with this ticket.

The only way I can compile it is to use **BOOST_RESULT_OF_USE_TR1_WITH_DECLTYPE_FALLBACK** preprocessor flag, unfortunately with flags triggers another branch of compile errors related to **fusion's result_of** helper. To fix **BOOST_RESULT_OF_USE_TR1_WITH_DECLTYPE_FALLBACK** compile errors the file boost/fusion/support/detail/result_of.hpp should be modified as follows:

Was: 
{{{
#!c++
#if !defined(BOOST_RESULT_OF_USE_DECLTYPE) || defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
}}}
Should:
{{{
#!c++
#if 1 || (!defined(BOOST_RESULT_OF_USE_TR1_WITH_DECLTYPE_FALLBACK) \
  && !defined(BOOST_RESULT_OF_USE_DECLTYPE)) \
    || defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
}}}

 "	Bugs	closed	Boost 1.60.0	fusion	Boost 1.59.0	Problem	fixed