.\" $NetBSD: bcc.1,v 1.2 1998/08/07 10:40:20 agc Exp $
.\"
.\" This manual page has been assembled after Bruce's original bcc.doc
.\" file by Jörg Wunsch <joerg@FreeBSD.org>.
.\" It is redistributed under the same conditions as the whole bcc
.\" package itself.
.\"
.Dd March 26, 1995
.Os
.Dt BCC 1
.Sh NAME
.Nm bcc
.Nd Bruce's C compiler
.Sh SYNOPSIS
.Nm bcc
.Op Fl 03EGOPSVcegv
.Op Fl A Ns Ar as_option
.Op Fl B Ns Ar executable_prefix
.Op Fl C Ns Ar cc1_option
.Op Fl D Ns Ar define
.Op Fl I Ns Ar include_dir
.Op Fl L Ns Ar ld_option
.Op Fl Q Ns Ar c386_option
.Op Fl T Ns Ar tmpdir
.Op Fl U Ns Ar undef
.Op Fl o Ar outfile
.Op Fl fpt Ar error
.Op ld_options
.Op Ar infiles

.Sh DESCRIPTION

.Ss Overview

.Nm Bcc
is a simple C compiler suitable for generating 8086 or 80386 code.
It basically understands the old K&R C input syntax, with some
restrictions on bit fields.  It interacts with the programs
.Xr as86 1
and
.Xr ld86 1 .

As a compile-time option, it is also possible to convince
.Nm bcc
to generate code for the Motorola 6809 CPU.

.Ss Options

.Bl -tag -width indent -compact

.It Fl 0
.Pq the digit 0
8086 target
.Pq works even on 80386 host

.It Fl 3
80386 target
.Pq works even on 8086 host

.It Fl A
pass remainder of option to assembler; e.\& g.
.Ql -A-l -Alistfile
for a listing

.It Fl B
prefix for executable search path; the search order is all paths
specified using
.Fl B ,
in order, then the path given in the environment variable
.Ev BCC_EXEC_PREFIX
if that is set, then the compiled-in defaults
.Pa /usr/local/lib/bcc ,
followed by
.Pa /usr/local/bin 

.It Fl C
pass remainder of option to bcc-cc1; e.\& g.
.Ql -C-c
for caller-saves

.It Fl D
define

.It Fl E
produce preprocessor output

.It Fl G
produce gnu-Minix objects
.Pq link with gnu ld

.It Fl I
include search path

.It Fl L
pass remainder of option to linker

.It Fl O
optimize
.Pq does nothing

.It Fl P
produce preprocessor output with no line numbers

.It Fl Q
pass full option to c386

.It Fl S
produce assembler file

.It Fl T
temporary directory;
overrides previous value and default; default is
from the environment variable
.Ev TMPDIR
if that is set, otherwise
.Pa /tmp

.It Fl U
undefine

.It Fl V
print names of files being compiled

.It Fl c
produce object file

.It Fl e
run the preprocess pass separately.  This takes less memory, and may
help or harm by giving more traditional semantics like token pasting
with
.Ql /**/
\&.

.It Fl f
error
.Pq float emulation not supported

.It Fl g
produce debugging info
.Pq does nothing

.It Fl o
output file name follows 
.Pq assembler, object or executable

.It Fl p
error
.Pq profiling not supported

.It Fl t
error
.Pq substitution of some cc passes not supported

.It Fl v
print names and args of subprocesses being run.
.Pp
Two or more
.Fl v
\&'s: print names of files being unlinked.
.Pp
Three or more
.Fl v
\&'s: print names of paths being searched.

.El

The 6809 version does not support
.Fl 0 ,
.Fl 3
or
.Fl G.

Only the c386 version supports
.Fl Q .

.Ss Defaults
Off or none except for these:

.Bl -tag -width indent -compact

.It Fl 0 | Fl 3
native, i.\& e. 80386

.It Ar outfile
stdout for preprocessor output
.Pp
.Pa somewhere/file.[ci]
\&->
.Pa file.s
for compiler output
.Pp
.Pa somewhere/file.[cis]
\&->
.Pa file.o
for assembler output
.Pp
.Pa a.out
for ld output

.El

Other options are passed to the linker, in particular
.Fl i- ,
.Fl l Ns Ar x ,
.Fl M ,
.Fl m ,
.Fl s .
The
.Fl i
option is always passed to the linker but can be cancelled using
.Fl i- .

.Sh ENVIRONMENT

.Bl -tag -width indent -compact

.It Ev BCC_EXEC_PREFIX
directory to search for compiler passes

.It Ev TMPDIR
where to place temporary files

.El

.Sh SEE ALSO

.Xr as86 1 ,
.Xr ld86 1 ,
.Xr bcc-cc1 1 ;
.Xr cc 1 .

.Sh AUTHORS

This program has been written by Bruce Evans.