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+'\"macro stdmacro
+.\"
+.\" Copyright (c) 2011 Ken McDonell.  All Rights Reserved.
+.\" 
+.\" This program is free software; you can redistribute it and/or modify it
+.\" under the terms of the GNU General Public License as published by the
+.\" Free Software Foundation; either version 2 of the License, or (at your
+.\" option) any later version.
+.\" 
+.\" This program is distributed in the hope that it will be useful, but
+.\" WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+.\" or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+.\" for more details.
+.\" 
+.\"
+.TH PMCPP 1 "" "Performance Co-Pilot"
+.SH NAME
+\f3pmcpp\f1 \- simple preprocessor for the Performance Co-Pilot
+.\" literals use .B or \f3
+.\" arguments use .I or \f2
+.SH SYNOPSIS
+.B pmcpp
+[\f3\-D\f1 \f2name\f1[=\f2value\f1] ...]
+[\f2infile\f1]
+.SH DESCRIPTION
+.B pmcpp
+provides a very simple pre-processor for manipulating Performance
+Metric Name Space (PMNS) files for the
+Performance Co-Pilot (PCP).  It is most commonly used internally
+to process the PMNS file(s) after
+.BR pmLoadNameSpace (3)
+or
+.BR pmLoadASCIINameSpace (3)
+is called.
+.PP
+Input lines are read from
+.I infile
+(or standard input if
+.I infile
+is not specified), processed and written to standard output.
+.PP
+All C-style comments of the form /* ... */ are stripped from the
+input stream.
+.PP
+There are no predefined macros for
+.B pmcpp
+although macros may be defined on the command line using the
+.B \-D
+option, where
+.I name
+and
+.I value
+must follow the same rules as described below for the
+.B #define
+directive.
+.PP
+.B pmcpp
+accepts the following directives in the input stream (like
+.BR cpp (1)):
+.IP * 3n
+\fB#include "\fIfilename\fB"\fR
+.br
+or
+.br
+\fB#include <\fIfilename\fB>\fR
+.br
+In either case the directory search path for
+.I filename
+tries
+.I filename
+first, then the directory for the command line
+.I infile
+(if any),
+followed by the
+.B $PCP_VAR_DIR/pmns
+directory.
+.B #include
+directives may be nested, up to a maximum depth of 5.
+.IP * 3n
+\fB#define \fIname value\fR
+.br
+Defines a value for the macro
+.I name
+which must be a valid C-style name, so leading alphabetic or ``_'' followed by
+zero or more alphanumerics or ``_''.
+.I value
+is optional (and defaults to an empty value) but when present it may
+.B not
+contain white space and quoting or escaping is
+.B not
+supported.
+.IP * 3n
+\fB#undef \fIname\fR
+.br
+Removes the macro definition, if any, for
+.IR name .
+.IP * 3n
+\fB#ifdef \fIname\fR
+.br
+\&...
+.br
+\fB#endif\fR
+.br
+or
+.br
+\fB#ifndef \fIname\fR
+.br
+\&...
+.br
+\fB#endif\fR
+.br
+The enclosing lines will be stripped or included, depending if the
+macro
+.I name
+is defined or not.
+.PP
+Macro substitution is achieved by breaking the input stream into words
+separated by white space or one of the characters ``.'' or ``:''
+\- this matches the syntax of the PMNS, see
+.BR pmns (5).
+Each word is checked and if it matches a macro name, the word is
+replaced by the macro value, otherwise the word is unchanged.
+.PP
+There is generally one output line for each input line, although the line
+may be empty if the text has been stripped due to the handling of
+comments or conditional directives.  When there is a change in the input
+stream, an additional output line is generated of the form:
+.PP
+.ti +10n
+# line "name"
+.PP
+to indicate the 
+.I following
+line of output corresponds to line number
+.I line
+of the input file
+.IR name .
+.PP
+Important
+.BR cpp (1)
+features that are
+.B not
+supported by
+.B pmcpp
+include:
+.IP * 3n
+\fB#if \fIexpr\fR
+.br
+\&...
+.br
+\fB#endif\fR
+.IP * 3n
+Nested use of
+.B #ifdef
+or
+.BR #ifndef .
+.IP * 3n
+.B #else
+within an
+.B #ifdef
+or
+.BR #ifndef .
+.IP * 3n
+Stripping C++ style comments, as in // comment
+.IP * 3n
+Error recovery - the first error encountered by
+.B pmcpp
+will be fatal.
+.IP * 3n
+.BR cpp (1)
+command line options like
+.B \-U ,
+.B \-P
+and
+.BR \-I .
+.SH "PCP ENVIRONMENT"
+Environment variables with the prefix
+.B PCP_
+are used to parameterize the file and directory names
+used by PCP.
+On each installation, the file
+.I /etc/pcp.conf
+contains the local values for these variables.
+The
+.B $PCP_CONF
+variable may be used to specify an alternative
+configuration file,
+as described in
+.BR pcp.conf (5).
+.SH SEE ALSO
+.BR cpp (1),
+.BR pmLoadASCIINameSpace (3),
+.BR pmLoadNameSpace (3),
+.BR pmns (5),
+.BR pcp.conf (5)
+and
+.BR pcp.env (5).