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<H1>tcc User's Guide</H1>
<H3>January 1998</H3>
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<H1>1. The Function of tcc</H1>
Like most compilation systems, the TDF C system consists of a number
of components which transform or combine various types of input files
into output files. <CODE>tcc</CODE> is designed to be a compilation
manager, coordinating these various components into a coherent compilation
scheme. It is also the normal user's interface to the TDF system on
Unix machines: direct use of the various components of the system
is not recommended. Therefore it is worth familiarising oneself with
<CODE>tcc</CODE> before attempting to use the TDF system. To aid this
familiarisation <CODE>tcc</CODE> has been designed to have the same
look and feel as the system C compiler <CODE>cc</CODE>, but with added
functionality to deal with the additional features of the TDF system.
This does not mean that <CODE>tcc</CODE> can be necessarily regarded
as a direct replacement for <CODE>cc</CODE> ; the extra portability
checks performed by the TDF system require the precise compilation
environment to be specified to <CODE>tcc</CODE> in a way that it cannot
be to <CODE>cc</CODE>.<P>
There are two basic components to this paper. The first describes
the TDF compilation strategy and how it is implemented by <CODE>tcc</CODE>.
The second is a Quick Reference section at the end of the paper, which
is intended to be a <CODE>tcc</CODE> user's manual. For even quicker
reference, <CODE>tcc</CODE> will print a list of all its command-line
options (with a brief description) if invoked with the <B>-query</B>
option.<P>
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