Как объединить qucs и freehdl?

Usage:
  freehdl-config --version   - show installed FreeHDL version
  freehdl-config --help      - show usage info (this message)
  freehdl-config --ldflags   - print libraries to link with
  freehdl-config --libtool   - print libtool libraries to link with
  freehdl-config --ieee      - print IEEE libtool libraries to link with
  freehdl-config --cxxflags  - print C++ compiler flags to compile with
  freehdl-config --cxx       - print C++ compiler
  freehdl-config --linker    - print libtool linker