Configuration

This document explains the build configuration system for the repository.

Build System Overview

The build is driven by MPW Make tools. Configuration is primarily defined in .make files located in the Make/ directory.

Key Configuration Files

Make/MainCode.Make / Make/Universal.make

The master makefile.

• Defines: Source directories, include paths, build options.
• Rules: How to compile C, Pascal, and Assembly files.
• Link List: The list of object files to link into the final system image.

Make/Build.txt

Likely defines build versioning or specific build targets.

Environment Variables

The cross_compile.sh and build_system7.sh scripts set up the following environment variables for empw:

Variable	Description
MPW	Root of the MPW tools directory.
KS_MPW	Alias for MPW (used by empw).
BuildResults	Output directory for artifacts (Build/).
ObjDir	Directory for intermediate object files.
AIncludes	Path to public Assembly includes.
CIncludes	Path to public C includes.
IntAIncludes	Path to internal Assembly includes.

Feature Flags and Defines

Conditional compilation is handled via compiler flags passed in the Makefile (e.g., -d DEBUG).

• debug: Enables debug symbols and assertions.
• uni: Likely refers to “Universal” build (supporting multiple machines).

Patching

The patch_makefile.sh script dynamically modifies Make/MainCode.Make to inject dependencies.

• Mechanism: Appends lines to the end of the file.
• Purpose: To add MiniFinder.c.o, VirtualMemoryStub.c.o, etc., without manually editing the complex makefile.

To change the configuration manually, you can edit Make/MainCode.Make (carefully, preserving line endings and encoding) or modify the patch_makefile.sh script.