You can find more information about the library on the website:

http://www.fixscript.org/

To use in your project, simply copy these files to your project:

fixio.c
fixio.h
macros.fix
classes.fix
io/
util/

On Windows you need to link against these libraries:
-lws2_32 -lmswsock -lwinmm

On Linux you need to link against these libraries:
-lm -lrt -lpthread

On Mac OS X you need to link against these libraries:
-lm -lpthread
