Build EMC2 on Windwos

1. GNU PTH Library
2. BWidget:

• download BWidget-*.tar.bz2 from tclib.sf.net
• uncompress and copy it to /usr/share/BWidget
• verify the installation with 'tclsh'
• % set auto_path
• % package require BWidget

Build emc2

1. cd src
2. ./configure --enable-simulator --enable-run-in-place
3. make (stuck at here: cannot build libnml on Windows)
   # Before running the software, set the emc environment:
   # . (top dir)/scripts/emc-environment
   # To run the software type
   # emc
4. libnml is forked from rcslib
5. rcslib can be built with MinGW; cannot be built with cygwin
6. replace libnml with rcslib?
7. port libnml to cygwin?
   
8. skip emc2 and try orocos?