id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
9472	Undocumented define causes header-only libraries to have link dependency on system	soda@…	Beman Dawes	"Code using the ASIO library must be linked with a boost binary lib, even though asio is considered 'header only' library.

Test system - ubuntu 13.10, using boost 1.55 download archive (not installed package).

Similar problem reported in ticket 7085.  Suspect this is systemic.

Demo source code:

{{{
/*
$ g++ -I. -Wall asio_link_fail.cpp -Wno-unused-local-typedefs

/tmp/ccjgSD3Q.o: In function `__static_initialization_and_destruction_0(int, int)':
asio_link_fail.cpp:(.text+0x50): undefined reference to `boost::system::generic_category()'
asio_link_fail.cpp:(.text+0x5a): undefined reference to `boost::system::generic_category()'
asio_link_fail.cpp:(.text+0x64): undefined reference to `boost::system::system_category()'
/tmp/ccjgSD3Q.o: In function `boost::asio::error::get_system_category()':
asio_link_fail.cpp:(.text._ZN5boost4asio5error19get_system_categoryEv[_ZN5boost4asio5error19get_system_categoryEv]+0x7): undefined reference to `boost::system::system_category()'
collect2: error: ld returned 1 exit status
*/

#include ""boost/asio.hpp""

int main() {
    return 1;
}
}}}

"	Bugs	new	To Be Determined	system	Boost 1.55.0	Problem		header-only	soda@…