Re: [gentoo-dev] RFC: fortran-2.eclass to depend on virtual/fortran

[justin]

On 10/7/12 8:19 PM, Chí-Thanh Christopher Nguyễn wrote:
> justin schrieb:
>> Hi,
>>
>> I want to add following change to fortran-2.eclass to achieve more
>> simpler usage.
>>
>> The patch will make the eclass depend on virtual/fortran so that
>> no manual addition is needed. Two exception are present, a) the
>> ebuild has the USE flag fortran, then we check for that, or b) the
>> FORTRAN_OPTIONAL variable is set, which leaves the control to the
>> ebuild (e.g. for cases like "lapack? ( virtual/fortran )").
>
> I suggest that you do something similar to the XORG_DRI variable in
> xorg-2.eclass.
>
> For example:
> FORTRAN_WANT_COMPILER=no would not add a virtual/fortran dependency
> FORTRAN_WANT_COMPILER=always would unconditionally depend on
> virtual/fortran
> FORTRAN_WANT_COMPILER=useflag would depend on useflag? ( virtual/fortran )
>
> To avoid breaking existing packages, you could default to
> FORTRAN_WANT_COMPILER=fortran
>
>
> Best regards,
> Chí-Thanh Christopher Nguyễn
>
>

Thanks for that suggestion. Please find the new version attached. It
basically follows what is done in the xorg-2.eclass. But we allow a list
of USE and don't allow a no, because the eclass itself needs a fortran
compiler.

Thanks,
justin