Issues with compiler flags in gfortran

[Joshua Root]

On 2019-1-23 21:01 , Nicolas Pavillon wrote:
> Hi, 
> 
>> On Jan 23, 2019, at 17:06, Joshua Root <jmr at macports.org> wrote:
>>
>> Doesn't look too hard, just changing '--with-as=${prefix}/bin/as' in the
>> portfile to '--with-as=${prefix}/bin/llvm-as-mp-7.0' for example. But
>> we're already telling the gcc ports --with-as=${prefix}/bin/as
>> specifically, which makes the change in behaviour with a different PATH
>> a bit puzzling.
> 
> Just to be sure there is no misunderstanding, and in the case this point comes from what I mentioned. 
> I indeed reported that there was a different behavior when changing PATH, but this was with a gfortran outside of Macports. 
> I installed another version of gfortran to test if it was working with it, and the build failed with /opt/local in PATH (because of the older /opt/local/bin/as), and worked without it (since the build automatically used /usr/bin/as, I guess), but there was no —with-as instruction in that case.

OK, that makes sense, thanks for clarifying.

I think I know how to fix this, the question is just whether we want to
add a dependency on clang or use the Xcode one (which not all OS
versions have.)

- Josh