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# Boost.Build

## como and como-win32 toolsets

## Introduction

Boost.Build's como and como-win32 toolsets support the Comeau Computing C/C++ Compiler.

## Configuration Variables

The como and como-win32 toolsets respond to the following variables which can be set in the environment or configured on the jam command-line using `-sVARIABLE_NAME=`value:

Variable Name | Semantics | Default | Notes
--- | --- | --- | ---
`COMO_PATH` | Path to installation of compiler tools. | (none) | If not set tools must be available in the executable path.
`COMO_BASE` | Path to installation of compiler tools. | `$(COMO_PATH)` | This is a backward compatability alternate for COMO_PATH.
`COMO_BIN_PATH` | Path to bin directory of compiler excutables. | `$(COMO_PATH)/bin/` |
`COMO_INCLUDE_PATH` | Path to libcomo headers. | `$(COMO_PATH)/libcomo` | `$(COMO_INCLUDE_PATH)/cnames` is automatically added.
`COMO_STDLIB_PATH` | Path to built libcomo object. | `$(COMO_PATH)/libcomo` |
`COMO_BACKEND` | Backend abbreviation, e.g. `vc7`, `bcc`, `dig`, etc. | `vc7` | `como-win32` toolset only.
`COMO_BACKEND_PATH` | Path to backend compiler. | `$(VC7_TOOLS)` | `como-win32` toolset only.

Revised 31 July, 2004

Copyright © Dave Abrahams 2002.

Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at www.boost.org/LICENSE_1_0.txt)