id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
11246	boost.coroutine 1.58 fails to build for mingw because of undefined symbols	anonymous	olli	"Hello,

I'm trying to cross-compile boost 1.58 from linux for mingw from tarball for archlinux (aur.archlinux.org/packages/mingw-w64-boost/).

I'm stuck when linking boost.coroutine because I've got undefined references to symbols in boost.context (make_fcontext, jump_fcontext):
{{{
gcc.link.dll bin.v2/libs/coroutine/build/gcc-mingw-mingw64/release/binary-format-pe/target-os-windows/threadapi-win32/threading-multi/libboost_coroutine-mt.dll.a
bin.v2/libs/coroutine/build/gcc-mingw-mingw64/release/binary-format-pe/target-os-windows/threadapi-win32/threading-multi/detail/coroutine_context.o:coroutine_context.cpp:(.text+0x4a): undefined reference to `_imp__make_fcontext'
bin.v2/libs/coroutine/build/gcc-mingw-mingw64/release/binary-format-pe/target-os-windows/threadapi-win32/threading-multi/detail/coroutine_context.o:coroutine_context.cpp:(.text+0xc7): undefined reference to `_imp__jump_fcontext'
}}}

It looks exactly like this issue github.com/boostorg/context/pull/12 that was fixed for AIX.

Prior to the build I applied the fedora patch used to successfully build previous versions of boost for mingw: pkgs.fedoraproject.org/cgit/mingw-boost.git/tree/boost-mingw.patch, but maybe it needs updating.
Also I wonder why it wasn't submited or accepted upstream.

Regards,
xan"	Bugs	closed	To Be Determined	context	Boost 1.58.0	Problem	fixed