[Boost-build] Lib rule does not seem to work

Subject: [Boost-build] Lib rule does not seem to work
From: Klemens Morgenstern (klemens.morgenstern_at_[hidden])
Date: 2015-08-06 16:53:22

Hi friends,

I am currently working on a small library and I seem to be to stupid to 
build libraries. I am using mingw (5.1) or gcc-arm (4.9). The install 
rule only copies the cpp-files and it does not build anything.

Does anyone know what could be wrong with that?

Thanks,

Klemens

PS: The project is located here: 
https://github.com/MorgWal/mw.test/tree/design

Jamroot.jam
--------------------------------------------
import gcc ;
boost_path = F:/boost-arm ;

project
     : source-location ./src
     : requirements
         <include>$(boost_path)/include/boost-1_58
         <include>./include
         <search>$(boost_path)/lib
                <cxxflags>-std=c++1y
         <link>static
     ;

lib json_backend : mw/json_test_backend.cpp : <debug-symbols>on ;
lib gdb_backend  : mw/gdb_test_backend.cpp : <debug-symbols>off ;

install backends : json_backend gdb_backend ;
--------------------------------------------