id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
7736	Boost.Units io.hpp always includes Boost.serialization and an unwanted Clang warning	Paul A. Bristow	Steven Watanabe	"I note that Boost.Units io.hpp''' always''' #includes serialization (a not inconsiderable amount of code to parse etc).  It would be nice if Serialization could only be included when required (but perhaps this is troublesome?)

This became apparent when compiling using Clang 3.1 (Ruben van Boxem's mingw32) on Netbeans 7.2 on Windows 7 when this ugly warning appeared:

{{{

In file included from i:/boost-trunk\boost/units/io.hpp:27:
In file included from i:/boost-trunk\boost/serialization/nvp.hpp:34:
In file included from i:/boost-trunk\boost/serialization/base_object.hpp:39:
i:/boost-trunk\boost/serialization/void_cast_fwd.hpp:29:1: warning: dllexport attribute ignored
BOOST_DLLEXPORT 
^
i:/boost-trunk\boost/serialization/force_include.hpp:37:43: note: expanded from macro 'BOOST_DLLEXPORT'
#       define BOOST_DLLEXPORT __declspec(dllexport)
                                          ^
<built-in>:150:38: note: expanded from macro '__declspec'
#define __declspec(a) __attribute__((a))
                                     ^
1 warning generated.
}}}

This also suggests that inappropriate dllexport attribute is being generated for Clang?



"	Support Requests	new	To Be Determined	units	Boost 1.52.0	Optimization		units serialization  dllexport attribute clang