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C89(1)			FreeBSD	General	Commands Manual			C89(1)

NAME
     c89 -- POSIX.2 C language compiler

SYNOPSIS
     c89 [-cEgOs] [-D name[=value]] ...	[-I directory] ... [-L directory] ...
	 [-o outfile] [-U name]	... operand ...

DESCRIPTION
     This is the name of the C language	compiler as required by	the IEEE Std
     1003.2 (``POSIX.2'') standard.

     The c89 compiler accepts the following options:

     -c	     Suppress the link-edit phase of the compilation, and do not
	     remove any	object files that are produced.

     -D	name[=value]
	     Define name as if by a C-language #define directive.  If no
	     ``=value''	is given, a value of 1 will be used.  Note that	in
	     order to request a	translation as specified by IEEE Std 1003.2
	     (``POSIX.2'') you need to define _POSIX_SOURCE either in the
	     source or using this option.  The -D option has lower precedence
	     than the -U option.  That is, if name is used in both a -U	and a
	     -D	option,	name will be undefined regardless of the order of the
	     options.  The -D option may be specified more than	once.

     -E	     Copy C-language source files to the standard output, expanding
	     all preprocessor directives; no compilation will be performed.

     -g	     Produce symbolic information in the object	or executable files.

     -I	directory
	     Change the	algorithm for searching	for headers whose names	are
	     not absolute pathnames to look in the directory named by the
	     directory pathname	before looking in the usual places.  Thus,
	     headers whose names are enclosed in double-quotes ("") will be
	     searched for first	in the directory of the	file with the #include
	     line, then	in directories named in	-I options, and	last in	the
	     usual places.  For	headers	whose names are	enclosed in angle
	     brackets (<>), the	header will be searched	for only in directo-
	     ries named	in -I options and then in the usual places.  Directo-
	     ries named	in -I options shall be searched	in the order speci-
	     fied.  The	-I option may be specified more	than once.

     -L	directory
	     Change the	algorithm of searching for the libraries named in the
	     -l	objects	to look	in the directory named by the directory	path-
	     name before looking in the	usual places.  Directories named in -L
	     options will be searched in the order specified.  The -L option
	     may be specified more than	once.

     -o	outfile
	     Use the pathname outfile, instead of the default a.out, for the
	     executable	file produced.

     -O	     Optimize the compilation.

     -s	     Produce object and/or executable files from which symbolic	and
	     other information not required for	proper execution has been
	     removed (stripped).

     -U	name
	     Remove any	initial	definition of name.  The -U option may be
	     specified more than once.

     An	operand	is either in the form of a pathname or the form	-l library.
     At	least one operand of the pathname form needs to	be specified.  Sup-
     ported operands are of the	form:

	   file.c      A C-language source file	to be compiled and optionally
		       linked.	The operand must be of this form if the	-c
		       option is used.

	   file.a      A library of object files, as produced by ar(1),	passed
		       directly	to the link editor.

	   file.o      An object file produced by c89 -c, and passed directly
		       to the link editor.

	   -l library  Search the library named	liblibrary.a.  A library will
		       be searched when	its name is encountered, so the	place-
		       ment of a -l operand is significant.

SEE ALSO
     ar(1), c99(1), cc(1)

STANDARDS
     The c89 utility is	believed to comply with	IEEE Std 1003.2	(``POSIX.2'').

FreeBSD	10.1		      September	17, 1997		  FreeBSD 10.1

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | STANDARDS

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