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C99(1) FreeBSD General Commands Manual C99(1)
NAME
c99 - standard C language compiler
SYNOPSIS
c99 [-cEgs] [-D name[=value]] ... [-I directory] ... [-L directory] ...
[-o outfile] [-O optlevel] [-U name] ... operand ...
DESCRIPTION
This is the name of the C language compiler as required by the IEEE Std
1003.1-2001 ("POSIX.1") standard.
The c99 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 1003.1-2001
("POSIX.1"), you need to define _POSIX_C_SOURCE=200112L 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
directories named in -I options and then in the usual places.
Directories named in -I options shall be searched in the order
specified. 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
pathname 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 optlevel
-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.
Supported 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 c99 -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
placement of a -l operand is significant.
SEE ALSO
ar(1), c89(1), cc(1), c99(7)
STANDARDS
The c99 utility interface conforms to IEEE Std 1003.1-2001 ("POSIX.1").
FreeBSD 14.0-RELEASE-p11 July 13, 2015 FreeBSD 14.0-RELEASE-p11