The "HQA" commit introduces a new build feature that provides the ability to override Hercules's default build settings without having to modify any of the Hercules header files themselves. (Note: not all build settings may be overridable yet. This is a work in progress.)
To override Hercules's default build settings, define an environment variable called 'HQA_DIR' pointing to the directory where your optional "hqa.h" overrides header file exists, or, instead of defining an environment variable, simply specify, if Linux, the new "--enable-hqa" configure option, or, if Windows, the new "-hqa" "makefile.bat" option.
Then, within your "hqa.h" override header, either #define the 'HQA_SCENARIO' macro to one of the pre-defined values defined in Hercules's "hqadefs.h" header file, or simply #define your own scenario. The values you #define will then override Hercules's default values.
Additionally, on Windows, you can override virtually any of the compiler settings as well, via a 'HQA.msvc' nmake !include override file that, for example, modifies the $(cflags) variable to add, remove, or change whatever compiler option you wish.
