[m-dev.] for review: new configure options

[Zoltan Somogyi]

On 18-Jan-2001, Fergus Henderson <fjh at cs.mu.OZ.AU> wrote:
> Estimated hours taken: 1
> 
> configure.in:
> 	Add new option `--with-cc=<program>'.
> 	Add new option `--disable-aditi-back-end'.
> 	Delete the long-obsolete AC_C_CROSS macro.
> 
> Mmake.common.in:
> 	Get the setting of INCLUDE_ADITI_OUTPUT from the value of the
> 	configure --enable/disable-aditi-back-end option.
> 	Add some comments.

This looks good, except that ...

>  # This requires that you have the source code for gcc in the
> -# directory ../gcc.
> +# directory specified by GCC_SRC_DIR (below).
> +# This can be set using the `--enable-gcc-back-end' or `--disable-gcc-back-end'
> +# options to configure; by default, configure will try to autoconfigure
> +# it based on whether the gcc source is present.
>  ENABLE_GCC_BACK_END = @ENABLE_GCC_BACK_END@
>  
>  # Specify the directory containing the GCC sources.
> -# This should contain subdirectories `gcc', `libiberty', etc.,
> +# This must be a relative path, not an absolute path.
> +# The directory named should contain subdirectories `gcc', `libiberty', etc.,
>  # and the `gcc' subdirectory should contain files `gcc.c',
>  # `tree.c', `tree.h', etc.
>  GCC_SRC_DIR = @GCC_SRC_DIR@

... these changes are not documented in the log message.

Zoltan.
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