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README.Mac
----------
v4.3 of the collector now runs under Symantec C++/THINK C v7.0.4, and
Metrowerks C/C++ v4.5 both 68K and PowerPC. Project files are provided
to build and test the collector under both development systems.
Configuration
-------------
To configure the collector, under both development systems, a prefix file
is used to set preprocessor directives. This file is called "MacOS_config.h".
Also to test the collector, "MacOS_Test_config.h" is provided.
Testing
-------
To test the collector (always a good idea), build one of the gctest projects,
gctest.¹ (Symantec C++/THINK C), mw/gctest.68K.¹, or mw/gctest.PPC.¹. The
test will ask you how many times to run; 1 should be sufficient.
Building
--------
For your convenience project files for the major Macintosh development
systems are provided.
For Symantec C++/THINK C, you must build the two projects gclib-1.¹ and
gclib-2.¹. It has to be split up because the collector has more than 32k
of static data and no library can have more than this in the Symantec
environment. (Future versions will probably fix this.)
For Metrowerks C/C++ 4.5 you build gc.68K.¹/gc.PPC.¹ and the result will
be a library called gc.68K.lib/gc.PPC.lib.
Using
-----
Under Symantec C++/THINK C, you can just add the gclib-1.¹ and gclib-2.¹
projects to your own project. Under Metrowerks, you add gc.68K.lib or
gc.PPC.lib and two additional files. You add the files called datastart.c
and dataend.c to your project, bracketing all files that use the collector.
See mw/gctest.¹ for an example.
Include the projects/libraries you built above into your own project,
#include "gc.h", and call GC_malloc. You don't have to call GC_free.
Patrick C. Beard
January 4, 1995
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