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bcc(1)											   bcc(1)

       bcc - Bruce's C compiler

       bcc   [-03EGNOPSVcegvwxW]   [-Aas_option]   [-Bexecutable_prefix]   [-Ddefine]	[-Uundef]
       [-Mc_mode] [-o outfile] [-ansi] [-Ccc1_option]  [-Iinclude_dir]	[-Lld_option]  [-Ttmpdir]
       [-Qc386_option] [-ttext_segno] [ld_options] [infiles]

       Bcc is a simple C compiler that produces 8086 assembler, in addition compiler compile time
       options allow 80386 or 6809 versions. The compiler understands traditional K&R C with just
       the restriction that bit fields are mapped to one of the other integer types.

       The default operation is to produce an 8086 executable called a.out from the source file.

       -ansi  Pass   the  C  source  through  unprotoize  after  preprocessing	and  before  code
	      generation. This will allow some ansi C to be compiled but it is	definitly  NOT	a
	      true ansi-C compiler.

       -0     8086 target (works on 80386 host, but not 6809)

       -3     80386 target (may work on 8086 host, but not 6809)

       -A     pass remainder of option to assembler (e.g. -A-l -Alistfile for a listing)

       -B     prefix  for  executable  search  path  (as  usual;  the  search  order is all paths
	      specified using -B, in order, then the  path  given  in  the  environment  variable
	      BCC_EXEC_PREFIX  if  that  is  set,  then  the compiled-in defaults (something like
	      /usr/lib/bcc/ followed by /usr/bin/)

       -C     pass remainder of option to bcc-cc1, see code generation options.

       -D     preprocessor define

       -E     produce preprocessor output to standard out.

       -G     produce GCC objects (only useful for i386 code)

       -Ixyz  include search 'xyz' path

       -I     don't add default include to search list

       -Lxyz  add directory name 'xyz' to the head of the list of library directories searched

       -L     don't add default library to search list

       -Md    alters the arguments for all passes to produce MSDOS executable COM  files.   These
	      are small model executables, use -i to get tiny model.

       -Mf    sets  bcc  to pass the -c and -f arguments to the code generator for smaller faster
	      code. Note this code is not compatible with the standard calling conventions  so	a
	      different version of the C library is linked too.

       -Mc    sets  bcc  to  pass  the -c argument to the code generator for smaller faster code.
	      Note the standard libc is normally transparent to this, but there are exceptions.

       -Ms    alters the arguments for all passes and selects  C-library  to  produce  standalone
	      Linux-86 executables

       -Ml    switches	to i386-Linux code generator and library.  This configuration accepts the
	      -z flag to generate QMAGIC a.out files instead of the normal OMAGIC.

       -N     makes the linker produce a native a.out file (Linux OMAGIC) if combined with -3 the
	      executable will run under Linux-i386.

       -O     optimize, call copt(1) to optimize 8086 code. Specifiers to choose which rules copt
	      should use can be appended to the -O and the option can be repeated.

       -P     produce preprocessor output with no line numbers to standard output.

       -Q     pass full option to c386 (Only for c386 version)

       -S     produce assembler file

       -T     temporary directory (overrides previous value and  default;  default  is	from  the
	      environment variable TMPDIR if that is set, otherwise /tmp)

       -U     preprocessor undefine

       -V     print names of files being compiled

       -X     pass  remainder  of  option  to  linker  (e.g.  -X-Ofile is passed to the linker as

       -c     produce object file

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

       -f     error (float emulation not supported)

       -g     produce debugging info (does nothing)

       -o     output file name follows (assembler, object or executable) (as usual)

       -p     error (profiling not supported)

       -t1    pass to the assembler to renumber the text segment for multi-segment programs.

       -v     print  names  and  args of subprocesses being run.  Two or more -v's print names of
	      files being unlinked.  Three or more -v's print names of paths being searched.

       -w     Supress any warning diagnostics.

       -W     Turn on assembler warning messages.

       -x     don't include crt0.o in the link.

       -i     don't pass -i to the linker so that it will create an impure executable.

       Other options are passed to the linker, in particular -lx, -M, -m, -s, -H.

       These are all options that the code generator pass bcc-cc1 understands, only some will  be
       useful  for  the  -C  option  of  bcc. The code generator is normally used as a combined C
       preprocessor and generator but the -e and -ansi options of bcc split the operation.

       -0     8086 target (works even on 80386 host, not on 6809)

       -3     80386 target (may work even on 8086 host, not on 6809)

       -D     define (as usual)

       -E     produce preprocessor output (as usual)

       -I     include search path (as usual)

       -P     produce preprocessor output with no line numbers (as usual)

       -c     produce code with caller saving regs before function calls

       -d     print debugging information in assembly output

       -f     produce code with 1st argument passed in a register (AX, EAX or X)

       -l     produce code for 2 3 1 0 long byte order (only works in  16-bit  code),  a  special
	      library of compiler helper functions is needed for this mode.

       -o     assembler output file name follows

       -p     produce (almost) position-independent code (only for the 6809)

       -t     print source code in assembly output

       -w     print what cc1 thinks is the location counter in assembly output

       All the options except -D, -I and -o may be turned off by following the option letter by a
       '-'.  Options are processed left to right so the last setting has precedence.

       The preprocessor has a number of manifest constants.

       __BCC__ 1
	      The compiler identifier, normally used to avoid compiler limitations.

	      stringized name of current input file

	      current line number

       __MSDOS__ 1
	      compiler is configured for generating MSDOS executable COM files.

       __STANDALONE__ 1
	      compiler is configured for generating standalone executables.

       __AS386_16__ 1
	      compiler is generating 16 bit 8086 assembler and the #asm keyword is available  for
	      including 8086 code.

       __AS386_32__ 1
	      compiler is generating 32 bit 80386 assembler and the #asm keyword is available for
	      including 80386 code.

       __CALLER_SAVES__ 1
	      compiler calling conventions are altered so the calling function must save  the  SI
	      and DI registers if they are in use (ESI and EDI on the 80386)

       __FIRST_ARG_IN_AX__ 1
	      compiler	calling  conventions  are  altered so the calling function is passing the
	      first argument to the function in the AX (or EAX ) register.

       __LONG_BIG_ENDIAN__ 1
	      alters the word order of code generated by the 8086 compiler.

       These defines only occur in the 6809 version of the compiler.

       __AS09__ 1
	      compiler is generating 6809 code

       __FIRST_ARG_IN_X__ 1
	      the first argument to functions is passed in the X register.

       __POS_INDEPENDENT__ 1
	      the code generated is (almost) position independent.

	      default directory to seach for compiler passes

       TMPDIR directory to place temporary files (default /tmp)

       All the include, library and compiler components are stored under the  /usr/bcc	directory
       under  Linux-i386,  this is laid out the same as a /usr filesystem and if bcc is to be the
       primary compiler on a system it should be moved there. The configuration for  this  is  in
       the bcc.c source file only, all other executables are independent of location.

       The  library  installation  also  creates  the  file  /usr/lib/liberror.txt,  this path is
       hardcoded into the C library.

       The bcc executable itself, as86 and ld86 are in /usr/bin.

       as86(1), ld86(1), elksemu(1)

       The bcc.c compiler driver source is very untidy.

       The linker, ld86, produces a broken a.out object file if given one input and the -r option
       this is so it is compatible with pre-dev86 versions.

					    Nov, 1997					   bcc(1)
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