xscale_be-cpp.1

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Exactly like \fB\-include\fR, except that any output produced by
scanning \fIfile\fR is thrown away.  Macros it defines remain defined.
This allows you to acquire all the macros from a header without also
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
.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
.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
.IX Item "-iwithprefix dir"
.PD 0
.Ip "\fB\-iwithprefixbefore\fR \fIdir\fR" 4
.IX Item "-iwithprefixbefore dir"
.PD
Append \fIdir\fR to the prefix specified previously with
\&\fB\-iprefix\fR, and add the resulting directory to the include search
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
.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
.IX Item "-fpreprocessed"
Indicate to the preprocessor that the input file has already been
preprocessed.  This suppresses things like macro expansion, trigraph
conversion, escaped newline splicing, and processing of most directives.
The preprocessor still recognizes and removes comments, so that you can
pass a file preprocessed with \fB\-C\fR to the compiler without
problems.  In this mode the integrated preprocessor is little more than
a tokenizer for the front ends.
.Sp
\&\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
.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
.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
.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
.IX Item "-A -predicate=answer"
Cancel an assertion with the predicate \fIpredicate\fR and answer
\&\fIanswer\fR.
.Ip "\fB\-A-\fR" 4
.IX Item "-A-"
Cancel all predefined assertions and all assertions preceding it on
the command line.  Also, undefine all predefined macros and all
macros preceding it on the command line.  (This is a historical wart and
may change in the future.)
.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
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
.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
preprocessor, including predefined macros.  This gives you a way of
finding out what is predefined in your version of the preprocessor.
Assuming you have no file \fIfoo.h\fR, the command
.Sp
.Vb 1
\&        touch foo.h; cpp -dM foo.h
.Ve
will show all the predefined macros.
.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
.IX Item "N"
Like \fBD\fR, but emit only the macro names, not their expansions.
.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
.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
.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
along with the directive.
.Sp
You should be prepared for side effects when using \fB\-C\fR; it
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\-gcc\fR" 4
.IX Item "-gcc"
Define the macros _\|_GNUC_\|_, _\|_GNUC_MINOR_\|_ and
_\|_GNUC_PATCHLEVEL_\|_.  These are defined automatically when you use
\&\fBgcc \-E\fR; you can turn them off in that case with
\&\fB\-no-gcc\fR.
.Ip "\fB\-traditional\fR" 4
.IX Item "-traditional"
Try to imitate the behavior of old-fashioned C, as opposed to \s-1ISO\s0
C.
.Ip "\fB\-trigraphs\fR" 4
.IX Item "-trigraphs"
Process trigraph sequences.
.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\-$\fR" 4
.IX Item "-$"
Forbid the use of \fB$\fR in identifiers.  The C standard allows
implementations to define extra characters that can appear in
identifiers.  By default \s-1GNU\s0 \s-1CPP\s0 permits \fB$\fR, a common extension.
.Ip "\fB\-h\fR" 4
.IX Item "-h"
.PD 0
.Ip "\fB\*(--help\fR" 4
.IX Item "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
.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
.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
.IX Item "-version"
.PD 0
.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.
.SH "ENVIRONMENT"
.IX Header "ENVIRONMENT"
This section describes the environment variables that affect how \s-1CPP\s0
operates.  You can use them to specify directories or prefixes to use
when searching for include files, or to control dependency output.
.PP
Note that you can also specify places to search using options such as
\&\fB\-I\fR, and control dependency output with options like
\&\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
.IX Item "CPATH"
.PD 0
.Ip "\fBC_INCLUDE_PATH\fR" 4
.IX Item "C_INCLUDE_PATH"
.Ip "\fB\s-1CPLUS_INCLUDE_PATH\s0\fR" 4
.IX Item "CPLUS_INCLUDE_PATH"
.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
character, much like \fB\s-1PATH\s0\fR, in which to look for header files.
The special character, \f(CW\*(C`PATH_SEPARATOR\*(C'\fR, is target-dependent and
determined at \s-1GCC\s0 build time.  For Windows-based targets it is a
semicolon, and for almost all other targets it is a colon.
.Sp
\&\fB\s-1CPATH\s0\fR specifies a list of directories to be searched as if
specified with \fB\-I\fR, but after any paths given with \fB\-I\fR
options on the command line.  The environment variable is used
regardless of which language is being preprocessed.
.Sp
The remaining environment variables apply only when preprocessing the
particular language indicated.  Each specifies a list of directories
to be searched as if specified with \fB\-isystem\fR, but after any
paths given with \fB\-isystem\fR options on the command line.
.Sp
See also \f(CW@ref\fR{Search Path}.
.Ip "\fB\s-1DEPENDENCIES_OUTPUT\s0\fR" 4
.IX Item "DEPENDENCIES_OUTPUT"
@anchor{\s-1DEPENDENCIES_OUTPUT\s0}
If this variable is set, its value specifies how to output
dependencies for Make based on the non-system header files processed
by the compiler.  System header files are ignored in the dependency
output.
.Sp
The value of \fB\s-1DEPENDENCIES_OUTPUT\s0\fR can be just a file name, in
which case the Make rules are written to that file, guessing the target
name from the source file name.  Or the value can have the form
\&\fIfile\fR\fB \fR\fItarget\fR, in which case the rules are written to
file \fIfile\fR using \fItarget\fR as the target name.
.Sp
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
.IX Item "SUNPRO_DEPENDENCIES"
This variable is the same as the environment variable
\&\fB\s-1DEPENDENCIES_OUTPUT\s0\fR, except that
system header files are not ignored, so it implies \fB\-M\fR rather
than \fB\-MM\fR.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fIgpl\fR\|(7), \fIgfdl\fR\|(7), \fIfsf-funding\fR\|(7),
\&\fIgcc\fR\|(1), \fIas\fR\|(1), \fIld\fR\|(1), and the Info entries for \fIcpp\fR, \fIgcc\fR, and
\&\fIbinutils\fR.
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright (c) 1987, 1989, 1991, 1992, 1993, 1994, 1995, 1996,
1997, 1998, 1999, 2000, 2001
Free Software Foundation, Inc.
.PP
Permission is granted to copy, distribute and/or modify this document
under the terms of the \s-1GNU\s0 Free Documentation License, Version 1.1 or
any later version published by the Free Software Foundation.  A copy of
the license is included in the
man page \fIgfdl\fR\|(7).
This manual contains no Invariant Sections.  The Front-Cover Texts are
(a) (see below), and the Back-Cover Texts are (b) (see below).
.PP
(a) The \s-1FSF\s0's Front-Cover Text is:
.PP
.Vb 1
\&     A GNU Manual
.Ve
(b) The \s-1FSF\s0's Back-Cover Text is:
.PP
.Vb 3
\&     You have freedom to copy and modify this GNU Manual, like GNU
\&     software.  Copies published by the Free Software Foundation raise
\&     funds for GNU development.
.Ve