cpp-netlib/build$ cmake ../ -DCPP-NETLIB_BUILD_SINGLE_LIB=ON
-- Optional package ICU was not found
-- Boost version: 1.53.0
-- Found the following Boost libraries:
--   system
--   regex
--   date_time
--   filesystem
--   program_options
C++ Compiler ID: GNU
C++ Flags: -std=c++11 -Wall link flags: 
-- CPP-NETLIB options selected:
--   CPP-NETLIB_BUILD_SHARED_LIBS: OFF  (Build cpp-netlib as shared libraries: OFF, ON)
--   CPP-NETLIB_BUILD_SINGLE_LIB:  ON   (Build cpp-netlib into a single library: OFF, ON)
--   CPP-NETLIB_BUILD_TESTS:       ON   (Build the unit tests: ON, OFF)
--   CPP-NETLIB_BUILD_EXAMPLES:    ON   (Build the examples using cpp-netlib: ON, OFF)
--   CPP-NETLIB_ALWAYS_LOGGING:    OFF  (Allow cpp-netlib to log debug messages even in non-debug mode: ON, OFF)
--   CPP-NETLIB_DISABLE_LOGGING:   OFF  (Disable logging definitely, no logging code will be generated or compiled: ON, OFF)
--   CPP-NETLIB_DISABLE_LIBCXX:    OFF  (Disable using libc++ when building with clang: ON, OFF)
-- CMake build options selected:
-- Boost version: 1.53.0
-- Found the following Boost libraries:
--   system
--   filesystem
C++ Flags: -std=c++11 link flags: 
-- Configuring done
CMake Error at CMakeLists.txt:152 (add_library):
  Cannot find source file:

    message.cpp

  Tried extensions .c .C .c++ .cc .cpp .cxx .m .M .mm .h .hh .h++ .hm .hpp
  .hxx .in .txx