Bulding tests and examples fails: c++: error: no input files

[yurivict]

When I am trying to build with -DBUILD_TESTS:BOOL=ON or -DBUILD_EXAMPLES:BOOL=ON I get failures:

[  1%] Building CXX object test/extension/CMakeFiles/test_extension.dir/extension.cpp.o
cd /usr/ports/devel/websocketpp/work/websocketpp-0.7.0/test/extension && /usr/bin/c++   -DBOOST_TEST_DYN_LINK -DNDEBUG -D_WEBSOCKETPP_CPP11_STL_ -I/usr/local/include -I/usr/ports/devel/websocketpp/work/websocketpp-0.7.0/test/extension -I/usr/ports/devel/websocketpp/work/websocketpp-0.7.0 -I/usr/ports/devel/websocketpp/work/websocketpp-0.7.0/websocketpp -O2 -pipe -fno-omit-frame-pointer -fstack-protector -fno-strict-aliasing -fno-omit-frame-pointer;-std=c++0x -stdlib=libc++ -O2 -pipe -fno-omit-frame-pointer -fstack-protector -fno-strict-aliasing -fno-omit-frame-pointer   -Wall -Wno-padded -o CMakeFiles/test_extension.dir/extension.cpp.o -c /usr/ports/devel/websocketpp/work/websocketpp-0.7.0/test/extension/extension.cpp
--- test/message_buffer/CMakeFiles/test_message_buffer.dir/all ---
--- test/message_buffer/CMakeFiles/test_message_buffer.dir/message.cpp.o ---
--- test/extension/CMakeFiles/test_extension.dir/all ---
c++: error: no input files
*** [test/extension/CMakeFiles/test_extension.dir/extension.cpp.o] Error code 1

make[3]: stopped in /usr/ports/devel/websocketpp/work/websocketpp-0.7.0
1 error

make[3]: stopped in /usr/ports/devel/websocketpp/work/websocketpp-0.7.0
*** [test/extension/CMakeFiles/test_extension.dir/all] Error code 2