scope of configure.optflags, configure.compiler etc. command line variables

[Joshua Root]

On 2019-9-17 07:26 , Ryan Schmidt wrote:
>> I cannot agree completely with that. What if you want to build all your ports with maximum optimisation (including -march=native and -mdynamic-no-pic)?
> 
> There is no feature in MacPorts for that. Individual ports can offer a variant to do that if that would be of particular benefit to that port. For example the gdal port offers a +perf variant. We should standardize on a name for such a variant. I don't know if we've already done so.

We've agreed on +native to use all the CPU features of the build
machine. But -mdynamic-no-pic is incompatible with PIE, which is the
default since 10.7.

- Josh