[m-rev.] for review: coverage testing

[Peter Wang]

On 2006-09-18, Zoltan Somogyi <zs at csse.unimelb.edu.au> wrote:
>  
> +# Note that we compile the slice directory using the version of mmc,
> +# mmake etc that we find in $PATH. We don't want to override this mmc
> +# with the one in scripts, since that one will probably refer to a
> +# nonexistent executable in /usr/local/mercury-DEV. This is why actions
> +# referring to the slice directory should use $(PLAIN_SUBDIR_MMAKE)
> +# instead of $(SUBDIR_MMAKE).
> +
> +PLAIN_SUBDIR_MMAKE = unset MMAKE; unset MMAKE_VPATH; unset MMAKE_DIR; \
> +		unset MERCURY_CONFIG_DIR; unset MERCURY_STDLIB_DIR; \
> +		mmake $(MMAKEFLAGS)

This makes building a bootstrap compiler fail on the slice directory
when there is no mmake, etc. in the PATH.

Peter

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