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fix merge botch. cpp.1 now describes gcc-3.3.3 instead of gcc-3.3.2

This commit is contained in:
dbj 2004-08-02 17:43:23 +00:00
parent d8a2c2edb9
commit 3a92b5a162
1 changed files with 136 additions and 131 deletions
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267
gnu/dist/gcc/gcc/doc/cpp.1 vendored
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@ -1,7 +1,8 @@
.\" Automatically generated by Pod::Man v1.34, Pod::Parser v1.13
.\" Automatically generated by Pod::Man version 1.15
.\" Sat Feb 14 20:38:10 2004
.\"
.\" Standard preamble:
.\" ========================================================================
.\" ======================================================================
.de Sh \" Subsection heading
.br
.if t .Sp
@ -14,6 +15,12 @@
.if t .sp .5v
.if n .sp
..
.de Ip \" List item
.br
.ie \\n(.$>=3 .ne \\$3
.el .ne 3
.IP "\\$1" \\$2
..
.de Vb \" Begin verbatim text
.ft CW
.nf
@ -21,14 +28,15 @@
..
.de Ve \" End verbatim text
.ft R
.fi
..
.\" Set up some character translations and predefined strings. \*(-- will
.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
.\" double quote, and \*(R" will give a right double quote. | will give a
.\" real vertical bar. \*(C+ will give a nicer C++. Capital omega is used to
.\" do unbreakable dashes and therefore won't be available. \*(C` and \*(C'
.\" expand to `' in nroff, nothing in troff, for use with C<>.
.\" real vertical bar. \*(C+ will give a nicer C++. Capital omega is used
.\" to do unbreakable dashes and therefore won't be available. \*(C` and
.\" \*(C' expand to `' in nroff, nothing in troff, for use with C<>
.tr \(*W-|\(bv\*(Tr
.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
.ie n \{\
@ -48,10 +56,10 @@
. ds R" ''
'br\}
.\"
.\" If the F register is turned on, we'll generate index entries on stderr for
.\" titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and index
.\" entries marked with X<> in POD. Of course, you'll have to process the
.\" output yourself in some meaningful fashion.
.\" If the F register is turned on, we'll generate index entries on stderr
.\" for titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and
.\" index entries marked with X<> in POD. Of course, you'll have to process
.\" the output yourself in some meaningful fashion.
.if \nF \{\
. de IX
. tm Index:\\$1\t\\n%\t"\\$2"
@ -60,13 +68,14 @@
. rr F
.\}
.\"
.\" For nroff, turn off justification. Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.\" For nroff, turn off justification. Always turn off hyphenation; it
.\" makes way too many mistakes in technical documents.
.hy 0
.if n .na
.\"
.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
.\" Fear. Run. Save yourself. No user-serviceable parts.
.bd B 3
. \" fudge factors for nroff and troff
.if n \{\
. ds #H 0
@ -126,10 +135,11 @@
. ds Ae AE
.\}
.rm #[ #] #H #V #F C
.\" ========================================================================
.\" ======================================================================
.\"
.IX Title "CPP 1"
.TH CPP 1 "2003-10-16" "gcc-3.3.2" "GNU"
.TH CPP 1 "gcc-3.3.3" "2004-02-14" "GNU"
.UC
.SH "NAME"
cpp \- The C Preprocessor
.SH "SYNOPSIS"
@ -156,12 +166,12 @@ text processor. It will choke on input which does not obey C's lexical
rules. For example, apostrophes will be interpreted as the beginning of
character constants, and cause errors. Also, you cannot rely on it
preserving characteristics of the input which are not significant to
C\-family languages. If a Makefile is preprocessed, all the hard tabs
C-family languages. If a Makefile is preprocessed, all the hard tabs
will be removed, and the Makefile will not work.
.PP
Having said that, you can often get away with using cpp on things which
are not C. Other Algol-ish programming languages are often safe
(Pascal, Ada, etc.) So is assembly, with caution. \fB\-traditional\-cpp\fR
(Pascal, Ada, etc.) So is assembly, with caution. \fB\-traditional-cpp\fR
mode preserves more white space, and is otherwise more permissive. Many
of the problems can be avoided by writing C or \*(C+ style comments
instead of native language comments, and keeping macros simple.
@ -198,10 +208,10 @@ The C preprocessor expects two file names as arguments, \fIinfile\fR and
other files it specifies with \fB#include\fR. All the output generated
by the combined input files is written in \fIoutfile\fR.
.PP
Either \fIinfile\fR or \fIoutfile\fR may be \fB\-\fR, which as
Either \fIinfile\fR or \fIoutfile\fR may be \fB-\fR, which as
\&\fIinfile\fR means to read from standard input and as \fIoutfile\fR
means to write to standard output. Also, if either file is omitted, it
means the same as if \fB\-\fR had been specified for that file.
means the same as if \fB-\fR had been specified for that file.
.PP
Unless otherwise noted, or the option ends in \fB=\fR, all options
which take an argument may have that argument appear either immediately
@ -211,10 +221,10 @@ after the option, or with a space between option and argument:
Many options have multi-letter names; therefore multiple single-letter
options may \fInot\fR be grouped: \fB\-dM\fR is very different from
\&\fB\-d\ \-M\fR.
.IP "\fB\-D\fR \fIname\fR" 4
.Ip "\fB\-D\fR \fIname\fR" 4
.IX Item "-D name"
Predefine \fIname\fR as a macro, with definition \f(CW1\fR.
.IP "\fB\-D\fR \fIname\fR\fB=\fR\fIdefinition\fR" 4
Predefine \fIname\fR as a macro, with definition \f(CW\*(C`1\*(C'\fR.
.Ip "\fB\-D\fR \fIname\fR\fB=\fR\fIdefinition\fR" 4
.IX Item "-D name=definition"
Predefine \fIname\fR as a macro, with definition \fIdefinition\fR.
There are no restrictions on the contents of \fIdefinition\fR, but if
@ -232,15 +242,15 @@ to quote the option. With \fBsh\fR and \fBcsh\fR,
are given on the command line. All \fB\-imacros\fR \fIfile\fR and
\&\fB\-include\fR \fIfile\fR options are processed after all
\&\fB\-D\fR and \fB\-U\fR options.
.IP "\fB\-U\fR \fIname\fR" 4
.Ip "\fB\-U\fR \fIname\fR" 4
.IX Item "-U name"
Cancel any previous definition of \fIname\fR, either built in or
provided with a \fB\-D\fR option.
.IP "\fB\-undef\fR" 4
.Ip "\fB\-undef\fR" 4
.IX Item "-undef"
Do not predefine any system-specific or GCC-specific macros. The
standard predefined macros remain defined.
.IP "\fB\-I\fR \fIdir\fR" 4
.Ip "\fB\-I\fR \fIdir\fR" 4
.IX Item "-I dir"
Add the directory \fIdir\fR to the list of directories to be searched
for header files.
@ -251,47 +261,47 @@ system include directory, the option is ignored to ensure that the
default search order for system directories and the special treatment
of system headers are not defeated
\&.
.IP "\fB\-o\fR \fIfile\fR" 4
.Ip "\fB\-o\fR \fIfile\fR" 4
.IX Item "-o file"
Write output to \fIfile\fR. This is the same as specifying \fIfile\fR
as the second non-option argument to \fBcpp\fR. \fBgcc\fR has a
different interpretation of a second non-option argument, so you must
use \fB\-o\fR to specify the output file.
.IP "\fB\-Wall\fR" 4
.Ip "\fB\-Wall\fR" 4
.IX Item "-Wall"
Turns on all optional warnings which are desirable for normal code. At
present this is \fB\-Wcomment\fR and \fB\-Wtrigraphs\fR. Note that
many of the preprocessor's warnings are on by default and have no
options to control them.
.IP "\fB\-Wcomment\fR" 4
.Ip "\fB\-Wcomment\fR" 4
.IX Item "-Wcomment"
.PD 0
.IP "\fB\-Wcomments\fR" 4
.Ip "\fB\-Wcomments\fR" 4
.IX Item "-Wcomments"
.PD
Warn whenever a comment-start sequence \fB/*\fR appears in a \fB/*\fR
comment, or whenever a backslash-newline appears in a \fB//\fR comment.
(Both forms have the same effect.)
.IP "\fB\-Wtrigraphs\fR" 4
.Ip "\fB\-Wtrigraphs\fR" 4
.IX Item "-Wtrigraphs"
Warn if any trigraphs are encountered. This option used to take effect
only if \fB\-trigraphs\fR was also specified, but now works
independently. Warnings are not given for trigraphs within comments, as
they do not affect the meaning of the program.
.IP "\fB\-Wtraditional\fR" 4
.Ip "\fB\-Wtraditional\fR" 4
.IX Item "-Wtraditional"
Warn about certain constructs that behave differently in traditional and
\&\s-1ISO\s0 C. Also warn about \s-1ISO\s0 C constructs that have no traditional C
equivalent, and problematic constructs which should be avoided.
.IP "\fB\-Wimport\fR" 4
.Ip "\fB\-Wimport\fR" 4
.IX Item "-Wimport"
Warn the first time \fB#import\fR is used.
.IP "\fB\-Wundef\fR" 4
.Ip "\fB\-Wundef\fR" 4
.IX Item "-Wundef"
Warn whenever an identifier which is not a macro is encountered in an
\&\fB#if\fR directive, outside of \fBdefined\fR. Such identifiers are
replaced with zero.
.IP "\fB\-Wunused\-macros\fR" 4
.Ip "\fB\-Wunused-macros\fR" 4
.IX Item "-Wunused-macros"
Warn about macros defined in the main file that are unused. A macro
is \fIused\fR if it is expanded or tested for existence at least once.
@ -311,7 +321,7 @@ Alternatively, you could provide a dummy use with something like:
\& #if defined the_macro_causing_the_warning
\& #endif
.Ve
.IP "\fB\-Wendif\-labels\fR" 4
.Ip "\fB\-Wendif-labels\fR" 4
.IX Item "-Wendif-labels"
Warn whenever an \fB#else\fR or an \fB#endif\fR are followed by text.
This usually happens in code of the form
@ -323,32 +333,31 @@ This usually happens in code of the form
\& ...
\& #endif FOO
.Ve
.Sp
The second and third \f(CW\*(C`FOO\*(C'\fR should be in comments, but often are not
in older programs. This warning is on by default.
.IP "\fB\-Werror\fR" 4
.Ip "\fB\-Werror\fR" 4
.IX Item "-Werror"
Make all warnings into hard errors. Source code which triggers warnings
will be rejected.
.IP "\fB\-Wsystem\-headers\fR" 4
.Ip "\fB\-Wsystem-headers\fR" 4
.IX Item "-Wsystem-headers"
Issue warnings for code in system headers. These are normally unhelpful
in finding bugs in your own code, therefore suppressed. If you are
responsible for the system library, you may want to see them.
.IP "\fB\-w\fR" 4
.Ip "\fB\-w\fR" 4
.IX Item "-w"
Suppress all warnings, including those which \s-1GNU\s0 \s-1CPP\s0 issues by default.
.IP "\fB\-pedantic\fR" 4
.Ip "\fB\-pedantic\fR" 4
.IX Item "-pedantic"
Issue all the mandatory diagnostics listed in the C standard. Some of
them are left out by default, since they trigger frequently on harmless
code.
.IP "\fB\-pedantic\-errors\fR" 4
.Ip "\fB\-pedantic-errors\fR" 4
.IX Item "-pedantic-errors"
Issue all the mandatory diagnostics, and make all mandatory diagnostics
into errors. This includes mandatory diagnostics that \s-1GCC\s0 issues
without \fB\-pedantic\fR but treats as warnings.
.IP "\fB\-M\fR" 4
.Ip "\fB\-M\fR" 4
.IX Item "-M"
Instead of outputting the result of preprocessing, output a rule
suitable for \fBmake\fR describing the dependencies of the main
@ -372,7 +381,7 @@ will still be sent to the regular output stream as normal.
.Sp
Passing \fB\-M\fR to the driver implies \fB\-E\fR, and suppresses
warnings with an implicit \fB\-w\fR.
.IP "\fB\-MM\fR" 4
.Ip "\fB\-MM\fR" 4
.IX Item "-MM"
Like \fB\-M\fR but do not mention header files that are found in
system header directories, nor header files that are included,
@ -382,7 +391,7 @@ This implies that the choice of angle brackets or double quotes in an
\&\fB#include\fR directive does not in itself determine whether that
header will appear in \fB\-MM\fR dependency output. This is a
slight change in semantics from \s-1GCC\s0 versions 3.0 and earlier.
.IP "\fB\-MF\fR \fIfile\fR" 4
.Ip "\fB\-MF\fR \fIfile\fR" 4
.IX Item "-MF file"
@anchor{\-MF}
When used with \fB\-M\fR or \fB\-MM\fR, specifies a
@ -392,7 +401,7 @@ preprocessed output.
.Sp
When used with the driver options \fB\-MD\fR or \fB\-MMD\fR,
\&\fB\-MF\fR overrides the default dependency output file.
.IP "\fB\-MG\fR" 4
.Ip "\fB\-MG\fR" 4
.IX Item "-MG"
In conjunction with an option such as \fB\-M\fR requesting
dependency generation, \fB\-MG\fR assumes missing header files are
@ -403,7 +412,7 @@ also suppresses preprocessed output, as a missing header file renders
this useless.
.Sp
This feature is used in automatic updating of makefiles.
.IP "\fB\-MP\fR" 4
.Ip "\fB\-MP\fR" 4
.IX Item "-MP"
This option instructs \s-1CPP\s0 to add a phony target for each dependency
other than the main file, causing each to depend on nothing. These
@ -415,11 +424,10 @@ This is typical output:
.Vb 1
\& test.o: test.c test.h
.Ve
.Sp
.Vb 1
\& test.h:
.Ve
.IP "\fB\-MT\fR \fItarget\fR" 4
.Ip "\fB\-MT\fR \fItarget\fR" 4
.IX Item "-MT target"
Change the target of the rule emitted by dependency generation. By
default \s-1CPP\s0 takes the name of the main input file, including any path,
@ -435,7 +443,7 @@ For example, \fB\-MT\ '$(objpfx)foo.o'\fR might give
.Vb 1
\& $(objpfx)foo.o: foo.c
.Ve
.IP "\fB\-MQ\fR \fItarget\fR" 4
.Ip "\fB\-MQ\fR \fItarget\fR" 4
.IX Item "-MQ target"
Same as \fB\-MT\fR, but it quotes any characters which are special to
Make. \fB\-MQ\ '$(objpfx)foo.o'\fR gives
@ -443,10 +451,9 @@ Make. \fB\-MQ\ '$(objpfx)foo.o'\fR gives
.Vb 1
\& $$(objpfx)foo.o: foo.c
.Ve
.Sp
The default target is automatically quoted, as if it were given with
\&\fB\-MQ\fR.
.IP "\fB\-MD\fR" 4
.Ip "\fB\-MD\fR" 4
.IX Item "-MD"
\&\fB\-MD\fR is equivalent to \fB\-M \-MF\fR \fIfile\fR, except that
\&\fB\-E\fR is not implied. The driver determines \fIfile\fR based on
@ -461,21 +468,21 @@ is understood to specify a target object file.
.Sp
Since \fB\-E\fR is not implied, \fB\-MD\fR can be used to generate
a dependency output file as a side-effect of the compilation process.
.IP "\fB\-MMD\fR" 4
.Ip "\fB\-MMD\fR" 4
.IX Item "-MMD"
Like \fB\-MD\fR except mention only user header files, not system
\&\-header files.
.IP "\fB\-x c\fR" 4
.Ip "\fB\-x c\fR" 4
.IX Item "-x c"
.PD 0
.IP "\fB\-x c++\fR" 4
.Ip "\fB\-x c++\fR" 4
.IX Item "-x c++"
.IP "\fB\-x objective-c\fR" 4
.Ip "\fB\-x objective-c\fR" 4
.IX Item "-x objective-c"
.IP "\fB\-x assembler-with-cpp\fR" 4
.Ip "\fB\-x assembler-with-cpp\fR" 4
.IX Item "-x assembler-with-cpp"
.PD
Specify the source language: C, \*(C+, Objective\-C, or assembly. This has
Specify the source language: C, \*(C+, Objective-C, or assembly. This has
nothing to do with standards conformance or extensions; it merely
selects which base syntax to expect. If you give none of these options,
cpp will deduce the language from the extension of the source file:
@ -488,10 +495,10 @@ generic mode.
which selected both the language and the standards conformance level.
This option has been removed, because it conflicts with the \fB\-l\fR
option.
.IP "\fB\-std=\fR\fIstandard\fR" 4
.Ip "\fB\-std=\fR\fIstandard\fR" 4
.IX Item "-std=standard"
.PD 0
.IP "\fB\-ansi\fR" 4
.Ip "\fB\-ansi\fR" 4
.IX Item "-ansi"
.PD
Specify the standard to which the code should conform. Currently \s-1CPP\s0
@ -500,85 +507,85 @@ knows about C and \*(C+ standards; others may be added in the future.
\&\fIstandard\fR
may be one of:
.RS 4
.ie n .IP """iso9899:1990""" 4
.el .IP "\f(CWiso9899:1990\fR" 4
.if n .Ip "\f(CW""""iso9899:1990""""\fR" 4
.el .Ip "\f(CWiso9899:1990\fR" 4
.IX Item "iso9899:1990"
.PD 0
.ie n .IP """c89""" 4
.el .IP "\f(CWc89\fR" 4
.if n .Ip "\f(CW""""c89""""\fR" 4
.el .Ip "\f(CWc89\fR" 4
.IX Item "c89"
.PD
The \s-1ISO\s0 C standard from 1990. \fBc89\fR is the customary shorthand for
this version of the standard.
.Sp
The \fB\-ansi\fR option is equivalent to \fB\-std=c89\fR.
.ie n .IP """iso9899:199409""" 4
.el .IP "\f(CWiso9899:199409\fR" 4
.if n .Ip "\f(CW""""iso9899:199409""""\fR" 4
.el .Ip "\f(CWiso9899:199409\fR" 4
.IX Item "iso9899:199409"
The 1990 C standard, as amended in 1994.
.ie n .IP """iso9899:1999""" 4
.el .IP "\f(CWiso9899:1999\fR" 4
.if n .Ip "\f(CW""""iso9899:1999""""\fR" 4
.el .Ip "\f(CWiso9899:1999\fR" 4
.IX Item "iso9899:1999"
.PD 0
.ie n .IP """c99""" 4
.el .IP "\f(CWc99\fR" 4
.if n .Ip "\f(CW""""c99""""\fR" 4
.el .Ip "\f(CWc99\fR" 4
.IX Item "c99"
.ie n .IP """iso9899:199x""" 4
.el .IP "\f(CWiso9899:199x\fR" 4
.if n .Ip "\f(CW""""iso9899:199x""""\fR" 4
.el .Ip "\f(CWiso9899:199x\fR" 4
.IX Item "iso9899:199x"
.ie n .IP """c9x""" 4
.el .IP "\f(CWc9x\fR" 4
.if n .Ip "\f(CW""""c9x""""\fR" 4
.el .Ip "\f(CWc9x\fR" 4
.IX Item "c9x"
.PD
The revised \s-1ISO\s0 C standard, published in December 1999. Before
publication, this was known as C9X.
.ie n .IP """gnu89""" 4
.el .IP "\f(CWgnu89\fR" 4
.if n .Ip "\f(CW""""gnu89""""\fR" 4
.el .Ip "\f(CWgnu89\fR" 4
.IX Item "gnu89"
The 1990 C standard plus \s-1GNU\s0 extensions. This is the default.
.ie n .IP """gnu99""" 4
.el .IP "\f(CWgnu99\fR" 4
.if n .Ip "\f(CW""""gnu99""""\fR" 4
.el .Ip "\f(CWgnu99\fR" 4
.IX Item "gnu99"
.PD 0
.ie n .IP """gnu9x""" 4
.el .IP "\f(CWgnu9x\fR" 4
.if n .Ip "\f(CW""""gnu9x""""\fR" 4
.el .Ip "\f(CWgnu9x\fR" 4
.IX Item "gnu9x"
.PD
The 1999 C standard plus \s-1GNU\s0 extensions.
.ie n .IP """c++98""" 4
.el .IP "\f(CWc++98\fR" 4
.if n .Ip "\f(CW""""c++98""""\fR" 4
.el .Ip "\f(CWc++98\fR" 4
.IX Item "c++98"
The 1998 \s-1ISO\s0 \*(C+ standard plus amendments.
.ie n .IP """gnu++98""" 4
.el .IP "\f(CWgnu++98\fR" 4
.if n .Ip "\f(CW""""gnu++98""""\fR" 4
.el .Ip "\f(CWgnu++98\fR" 4
.IX Item "gnu++98"
The same as \fB\-std=c++98\fR plus \s-1GNU\s0 extensions. This is the
default for \*(C+ code.
.RE
.RS 4
.RE
.IP "\fB\-I\-\fR" 4
.Ip "\fB\-I-\fR" 4
.IX Item "-I-"
Split the include path. Any directories specified with \fB\-I\fR
options before \fB\-I\-\fR are searched only for headers requested with
options before \fB\-I-\fR are searched only for headers requested with
\&\f(CW\*(C`#include\ "\f(CIfile\f(CW"\*(C'\fR; they are not searched for
\&\f(CW\*(C`#include\ <\f(CIfile\f(CW>\*(C'\fR. If additional directories are
specified with \fB\-I\fR options after the \fB\-I\-\fR, those
specified with \fB\-I\fR options after the \fB\-I-\fR, those
directories are searched for all \fB#include\fR directives.
.Sp
In addition, \fB\-I\-\fR inhibits the use of the directory of the current
In addition, \fB\-I-\fR inhibits the use of the directory of the current
file directory as the first search directory for \f(CW\*(C`#include\ "\f(CIfile\f(CW"\*(C'\fR.
.IP "\fB\-nostdinc\fR" 4
.Ip "\fB\-nostdinc\fR" 4
.IX Item "-nostdinc"
Do not search the standard system directories for header files.
Only the directories you have specified with \fB\-I\fR options
(and the directory of the current file, if appropriate) are searched.
.IP "\fB\-nostdinc++\fR" 4
.Ip "\fB\-nostdinc++\fR" 4
.IX Item "-nostdinc++"
Do not search for header files in the \*(C+\-specific standard directories,
but do still search the other standard directories. (This option is
used when building the \*(C+ library.)
.IP "\fB\-include\fR \fIfile\fR" 4
.Ip "\fB\-include\fR \fIfile\fR" 4
.IX Item "-include file"
Process \fIfile\fR as if \f(CW\*(C`#include "file"\*(C'\fR appeared as the first
line of the primary source file. However, the first directory searched
@ -589,7 +596,7 @@ chain as normal.
.Sp
If multiple \fB\-include\fR options are given, the files are included
in the order they appear on the command line.
.IP "\fB\-imacros\fR \fIfile\fR" 4
.Ip "\fB\-imacros\fR \fIfile\fR" 4
.IX Item "-imacros file"
Exactly like \fB\-include\fR, except that any output produced by
scanning \fIfile\fR is thrown away. Macros it defines remain defined.
@ -598,20 +605,20 @@ processing its declarations.
.Sp
All files specified by \fB\-imacros\fR are processed before all files
specified by \fB\-include\fR.
.IP "\fB\-idirafter\fR \fIdir\fR" 4
.Ip "\fB\-idirafter\fR \fIdir\fR" 4
.IX Item "-idirafter dir"
Search \fIdir\fR for header files, but do it \fIafter\fR all
directories specified with \fB\-I\fR and the standard system directories
have been exhausted. \fIdir\fR is treated as a system include directory.
.IP "\fB\-iprefix\fR \fIprefix\fR" 4
.Ip "\fB\-iprefix\fR \fIprefix\fR" 4
.IX Item "-iprefix prefix"
Specify \fIprefix\fR as the prefix for subsequent \fB\-iwithprefix\fR
options. If the prefix represents a directory, you should include the
final \fB/\fR.
.IP "\fB\-iwithprefix\fR \fIdir\fR" 4
.Ip "\fB\-iwithprefix\fR \fIdir\fR" 4
.IX Item "-iwithprefix dir"
.PD 0
.IP "\fB\-iwithprefixbefore\fR \fIdir\fR" 4
.Ip "\fB\-iwithprefixbefore\fR \fIdir\fR" 4
.IX Item "-iwithprefixbefore dir"
.PD
Append \fIdir\fR to the prefix specified previously with
@ -620,13 +627,13 @@ path. \fB\-iwithprefixbefore\fR puts it in the same place \fB\-I\fR
would; \fB\-iwithprefix\fR puts it where \fB\-idirafter\fR would.
.Sp
Use of these options is discouraged.
.IP "\fB\-isystem\fR \fIdir\fR" 4
.Ip "\fB\-isystem\fR \fIdir\fR" 4
.IX Item "-isystem dir"
Search \fIdir\fR for header files, after all directories specified by
\&\fB\-I\fR but before the standard system directories. Mark it
as a system directory, so that it gets the same special treatment as
is applied to the standard system directories.
.IP "\fB\-fpreprocessed\fR" 4
.Ip "\fB\-fpreprocessed\fR" 4
.IX Item "-fpreprocessed"
Indicate to the preprocessor that the input file has already been
preprocessed. This suppresses things like macro expansion, trigraph
@ -639,29 +646,29 @@ a tokenizer for the front ends.
\&\fB\-fpreprocessed\fR is implicit if the input file has one of the
extensions \fB.i\fR, \fB.ii\fR or \fB.mi\fR. These are the
extensions that \s-1GCC\s0 uses for preprocessed files created by
\&\fB\-save\-temps\fR.
.IP "\fB\-ftabstop=\fR\fIwidth\fR" 4
\&\fB\-save-temps\fR.
.Ip "\fB\-ftabstop=\fR\fIwidth\fR" 4
.IX Item "-ftabstop=width"
Set the distance between tab stops. This helps the preprocessor report
correct column numbers in warnings or errors, even if tabs appear on the
line. If the value is less than 1 or greater than 100, the option is
ignored. The default is 8.
.IP "\fB\-fno\-show\-column\fR" 4
.Ip "\fB\-fno-show-column\fR" 4
.IX Item "-fno-show-column"
Do not print column numbers in diagnostics. This may be necessary if
diagnostics are being scanned by a program that does not understand the
column numbers, such as \fBdejagnu\fR.
.IP "\fB\-A\fR \fIpredicate\fR\fB=\fR\fIanswer\fR" 4
.Ip "\fB\-A\fR \fIpredicate\fR\fB=\fR\fIanswer\fR" 4
.IX Item "-A predicate=answer"
Make an assertion with the predicate \fIpredicate\fR and answer
\&\fIanswer\fR. This form is preferred to the older form \fB\-A\fR
\&\fIpredicate\fR\fB(\fR\fIanswer\fR\fB)\fR, which is still supported, because
it does not use shell special characters.
.IP "\fB\-A \-\fR\fIpredicate\fR\fB=\fR\fIanswer\fR" 4
.Ip "\fB\-A -\fR\fIpredicate\fR\fB=\fR\fIanswer\fR" 4
.IX Item "-A -predicate=answer"
Cancel an assertion with the predicate \fIpredicate\fR and answer
\&\fIanswer\fR.
.IP "\fB\-dCHARS\fR" 4
.Ip "\fB\-dCHARS\fR" 4
.IX Item "-dCHARS"
\&\fI\s-1CHARS\s0\fR is a sequence of one or more of the following characters,
and must not be preceded by a space. Other characters are interpreted
@ -669,7 +676,7 @@ by the compiler proper, or reserved for future versions of \s-1GCC\s0, and so
are silently ignored. If you specify characters whose behavior
conflicts, the result is undefined.
.RS 4
.IP "\fBM\fR" 4
.Ip "\fBM\fR" 4
.IX Item "M"
Instead of the normal output, generate a list of \fB#define\fR
directives for all the macros defined during the execution of the
@ -680,31 +687,30 @@ Assuming you have no file \fIfoo.h\fR, the command
.Vb 1
\& touch foo.h; cpp -dM foo.h
.Ve
.Sp
will show all the predefined macros.
.IP "\fBD\fR" 4
.Ip "\fBD\fR" 4
.IX Item "D"
Like \fBM\fR except in two respects: it does \fInot\fR include the
predefined macros, and it outputs \fIboth\fR the \fB#define\fR
directives and the result of preprocessing. Both kinds of output go to
the standard output file.
.IP "\fBN\fR" 4
.Ip "\fBN\fR" 4
.IX Item "N"
Like \fBD\fR, but emit only the macro names, not their expansions.
.IP "\fBI\fR" 4
.Ip "\fBI\fR" 4
.IX Item "I"
Output \fB#include\fR directives in addition to the result of
preprocessing.
.RE
.RS 4
.RE
.IP "\fB\-P\fR" 4
.Ip "\fB\-P\fR" 4
.IX Item "-P"
Inhibit generation of linemarkers in the output from the preprocessor.
This might be useful when running the preprocessor on something that is
not C code, and will be sent to a program which might be confused by the
linemarkers.
.IP "\fB\-C\fR" 4
.Ip "\fB\-C\fR" 4
.IX Item "-C"
Do not discard comments. All comments are passed through to the output
file, except for comments in processed directives, which are deleted
@ -715,7 +721,7 @@ causes the preprocessor to treat comments as tokens in their own right.
For example, comments appearing at the start of what would be a
directive line have the effect of turning that line into an ordinary
source line, since the first token on the line is no longer a \fB#\fR.
.IP "\fB\-CC\fR" 4
.Ip "\fB\-CC\fR" 4
.IX Item "-CC"
Do not discard comments, including during macro expansion. This is
like \fB\-C\fR, except that comments contained within macros are
@ -723,44 +729,44 @@ also passed through to the output file where the macro is expanded.
.Sp
In addition to the side-effects of the \fB\-C\fR option, the
\&\fB\-CC\fR option causes all \*(C+\-style comments inside a macro
to be converted to C\-style comments. This is to prevent later use
to be converted to C-style comments. This is to prevent later use
of that macro from inadvertently commenting out the remainder of
the source line.
.Sp
The \fB\-CC\fR option is generally used to support lint comments.
.IP "\fB\-traditional\-cpp\fR" 4
.Ip "\fB\-traditional-cpp\fR" 4
.IX Item "-traditional-cpp"
Try to imitate the behavior of old-fashioned C preprocessors, as
opposed to \s-1ISO\s0 C preprocessors.
.IP "\fB\-trigraphs\fR" 4
.Ip "\fB\-trigraphs\fR" 4
.IX Item "-trigraphs"
Process trigraph sequences.
.IP "\fB\-remap\fR" 4
.Ip "\fB\-remap\fR" 4
.IX Item "-remap"
Enable special code to work around file systems which only permit very
short file names, such as \s-1MS\-DOS\s0.
.IP "\fB\-\-help\fR" 4
.IX Item "--help"
short file names, such as \s-1MS-DOS\s0.
.Ip "\fB\*(--help\fR" 4
.IX Item "help"
.PD 0
.IP "\fB\-\-target\-help\fR" 4
.IX Item "--target-help"
.Ip "\fB\*(--target-help\fR" 4
.IX Item "target-help"
.PD
Print text describing all the command line options instead of
preprocessing anything.
.IP "\fB\-v\fR" 4
.Ip "\fB\-v\fR" 4
.IX Item "-v"
Verbose mode. Print out \s-1GNU\s0 \s-1CPP\s0's version number at the beginning of
execution, and report the final form of the include path.
.IP "\fB\-H\fR" 4
.Ip "\fB\-H\fR" 4
.IX Item "-H"
Print the name of each header file used, in addition to other normal
activities. Each name is indented to show how deep in the
\&\fB#include\fR stack it is.
.IP "\fB\-version\fR" 4
.Ip "\fB\-version\fR" 4
.IX Item "-version"
.PD 0
.IP "\fB\-\-version\fR" 4
.IX Item "--version"
.Ip "\fB\*(--version\fR" 4
.IX Item "version"
.PD
Print out \s-1GNU\s0 \s-1CPP\s0's version number. With one dash, proceed to
preprocess as normal. With two dashes, exit immediately.
@ -775,14 +781,14 @@ Note that you can also specify places to search using options such as
\&\fB\-M\fR. These take precedence over
environment variables, which in turn take precedence over the
configuration of \s-1GCC\s0.
.IP "\fB\s-1CPATH\s0\fR" 4
.Ip "\fB\s-1CPATH\s0\fR" 4
.IX Item "CPATH"
.PD 0
.IP "\fBC_INCLUDE_PATH\fR" 4
.Ip "\fBC_INCLUDE_PATH\fR" 4
.IX Item "C_INCLUDE_PATH"
.IP "\fB\s-1CPLUS_INCLUDE_PATH\s0\fR" 4
.Ip "\fB\s-1CPLUS_INCLUDE_PATH\s0\fR" 4
.IX Item "CPLUS_INCLUDE_PATH"
.IP "\fB\s-1OBJC_INCLUDE_PATH\s0\fR" 4
.Ip "\fB\s-1OBJC_INCLUDE_PATH\s0\fR" 4
.IX Item "OBJC_INCLUDE_PATH"
.PD
Each variable's value is a list of directories separated by a special
@ -806,7 +812,7 @@ search its current working directory. Empty elements can appear at the
beginning or end of a path. For instance, if the value of
\&\fB\s-1CPATH\s0\fR is \f(CW\*(C`:/special/include\*(C'\fR, that has the same
effect as \fB\-I.\ \-I/special/include\fR.
.IP "\fB\s-1DEPENDENCIES_OUTPUT\s0\fR" 4
.Ip "\fB\s-1DEPENDENCIES_OUTPUT\s0\fR" 4
.IX Item "DEPENDENCIES_OUTPUT"
If this variable is set, its value specifies how to output
dependencies for Make based on the non-system header files processed
@ -822,7 +828,7 @@ file \fIfile\fR using \fItarget\fR as the target name.
In other words, this environment variable is equivalent to combining
the options \fB\-MM\fR and \fB\-MF\fR,
with an optional \fB\-MT\fR switch too.
.IP "\fB\s-1SUNPRO_DEPENDENCIES\s0\fR" 4
.Ip "\fB\s-1SUNPRO_DEPENDENCIES\s0\fR" 4
.IX Item "SUNPRO_DEPENDENCIES"
This variable is the same as \fB\s-1DEPENDENCIES_OUTPUT\s0\fR (see above),
except that system header files are not ignored, so it implies
@ -835,7 +841,7 @@ main input file is omitted.
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright (c) 1987, 1989, 1991, 1992, 1993, 1994, 1995, 1996,
1997, 1998, 1999, 2000, 2001, 2002, 2003
1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
Free Software Foundation, Inc.
.PP
Permission is granted to copy, distribute and/or modify this document
@ -849,7 +855,6 @@ This manual contains no Invariant Sections. The Front-Cover Texts are
.Vb 1
\& A GNU Manual
.Ve
.PP
(b) The \s-1FSF\s0's Back-Cover Text is:
.PP
.Vb 3