13.1 Usage

While make is a single executable file, amake has several parts:

• amake replaces make as the executable file.
• amake preloads a shared-library named libaccess.
• amake executes a customizable script, for each target, named amake-collect.
• If the target cache is enabled, amake tries to get targets from, and put targets in, the target-cache subsystem. This subsystem has three parts: the target-cache-daemon (tcd), the SQL-database daemon (sqld), and the target-cache filesystem.

You will need to be able to execute amake and amake-collect, and preload libaccess. This can be accomplished in several ways, but the easiest way is to assign appropriate values to the environment variables PATH and LD_LIBRARY_PATH.

In addition, if the target cache is enabled, the target-cache subsystem is assumed to be active.

Once you can execute amake, you can enable its features by adding lines to your makefile.

First, add two variable definitions:

     SHELL:=/bin/bash
     ACCESS_ENABLE:=1

Assigning a value to SHELL, other than /bin/sh, causes make to execute commands in a subshell, which allows libaccess to be preloaded. Assigning a value to ACCESS_ENABLE enables automatic dependency analysis.

Then, add an sinclude directive:

     sinclude *.dep

Including the generated dependency files causes make to use the previously detected dependencies.