On Jul 6, 2010, at 2:41 AM, Ryan Schmidt wrote:
> Yes, marking variants as conflicting with one another will prevent the user
> from choosing more than one of them at the same time. So you want to write:
>
> variant python24 conflicts python25 python26 python27 description {Use python
> 2.4} {
> depends_lib-append port:python24
> configure.args-append --python=${prefix}/bin/python2.4
> }
>
> variant python25 conflicts python24 python26 python27 description {Use python
> 2.5} {
> depends_lib-append port:python25
> configure.args-append --python=${prefix}/bin/python2.5
> }
>
> variant python26 conflicts python24 python25 python27 description {Use python
> 2.6} {
> depends_lib-append port:python26
> configure.args-append --python=${prefix}/bin/python2.6
> }
>
> variant python27 conflicts python24 python25 python26 description {Use python
> 2.7} {
> depends_lib-append port:python27
> configure.args-append --python=${prefix}/bin/python2.7
> }
>
> As for default variants, you want to write:
>
> if {![variant_isset python24] && ![variant_isset python25] && ![variant_isset
> python26] && ![variant_isset python27]} {
> default_variants +python26
> }
or, instead of that giant ever-growing if statement that needs to be updated
whenever you add a new python version variant - just have the main part of the
port depend on (and configure with) python26, then each variant can just remove
the python26 dependency/configure arg and substitute their own.
--
Daniel J. Luke
+========================================================+
| *---------------- dl...@geeklair.net ----------------* |
| *-------------- http://www.geeklair.net -------------* |
+========================================================+
| Opinions expressed are mine and do not necessarily |
| reflect the opinions of my employer. |
+========================================================+
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