[MacPorts] #63031: mpich-default @3.4.1_3: seems to be disabled on Leopard -- but installs easily

[MacPorts]

#63031: mpich-default @3.4.1_3: seems to be disabled on Leopard -- but installs
easily
---------------------------+----------------------
  Reporter:  kencu         |      Owner:  mascguy
      Type:  defect        |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:
Resolution:                |   Keywords:
      Port:  mpich-defaul  |
---------------------------+----------------------
Description changed by kencu:

Old description:

> I was getting around to upgrading the ports on some of my older systems,
> and on my main Leopard workhorse, mpich-default would not upgrade.
>
> It said it was not supported on Leopard, which came as a surprise to me,
> as it installed without any trouble at all a few weeks ago, and the
> version has not changed.
>
> Things in the mpich-* world have become rather impressively more
> complicated since the last time I looked, with the port trying to do a
> lot of figuring out what compilers do and don't work on which systems.
> That is such a moving target it will be hard to keep that logic current.
> For example, it says that gcc9 won't build on 10.7, or that clang-11
> won't build on 10.6, but they do, AFAIK.
>
> Anyway, after a fair amount of trying to figure out what is going on. I
> (think I) found the switch to flip that was disabing mpich-default on
> Leopard, and with this little patch:
>
> {{{
> $ diff -u Portfile `port file mpich-default`
> --- Portfile    2021-06-05 19:31:01.000000000 -0700
> +++
> /opt/local/var/macports/sources/rsync.macports.org/macports/release/tarballs/ports/science/mpich/Portfile
> 2021-06-05 19:12:23.000000000 -0700
> @@ -82,7 +82,7 @@
>  dict set clist gcc7 {macports-gcc-7}
>
>  # Only enable default (gcc), and Xcode clang, for MacOS 10.7 and later
> -if { ${os.major} >= 11 } {
> +if { ${os.major} >= 1 } {
>      dict set clist default {}
>      dict set clist clang   {clang}
>  } else {
> }}}
>
> all was well in the world once again. mpich-default builds through with
> the lowly, 15 year old {{{/usr/bin/gcc-4.2}}} on Leopard, so it's
> compiler requirements would appear to be quite modest, in the end.
>
> {{{
> $ port -v installed mpich-default
> The following ports are currently installed:
>   mpich-default @3.4.1_1+gcc7 requested_variants='+gcc7' platform='darwin
> 9' archs='i386' date='2021-03-17T14:22:49-0700'
>   mpich-default @3.4.2_0+gcc7 (active) requested_variants=''
> platform='darwin 9' archs='i386' date='2021-06-05T19:28:20-0700'
> }}}

New description:

 I was getting around to upgrading the ports on some of my older systems,
 and on my main Leopard workhorse, mpich-default would not upgrade.

 It said it was not supported on Leopard, which came as a surprise to me,
 as it installed without any trouble at all a few weeks ago, and the
 version has not changed.

 Things in the mpich-* world have become rather impressively more
 complicated since the last time I looked, with the port trying to do a lot
 of figuring out what compilers do and don't work on which systems. That is
 such a moving target it will be hard to keep that logic current. For
 example, it says that gcc9 won't build on 10.7, or that clang-11 won't
 build on 10.6, but they do, AFAIK, and if they don't build today, they
 will very shortly.

 Anyway, after a fair amount of trying to figure out what is going on. I
 (think I) found the switch to flip that was disabing mpich-default on
 Leopard, and with this little patch:

 {{{
 $ diff -u Portfile `port file mpich-default`
 --- Portfile    2021-06-05 19:31:01.000000000 -0700
 +++
 /opt/local/var/macports/sources/rsync.macports.org/macports/release/tarballs/ports/science/mpich/Portfile
 2021-06-05 19:12:23.000000000 -0700
 @@ -82,7 +82,7 @@
  dict set clist gcc7 {macports-gcc-7}

  # Only enable default (gcc), and Xcode clang, for MacOS 10.7 and later
 -if { ${os.major} >= 11 } {
 +if { ${os.major} >= 1 } {
      dict set clist default {}
      dict set clist clang   {clang}
  } else {
 }}}

 all was well in the world once again. mpich-default builds through with
 the lowly, 15 year old {{{/usr/bin/gcc-4.2}}} on Leopard, so it's compiler
 requirements would appear to be quite modest, in the end.

 {{{
 $ port -v installed mpich-default
 The following ports are currently installed:
   mpich-default @3.4.1_1+gcc7 requested_variants='+gcc7' platform='darwin
 9' archs='i386' date='2021-03-17T14:22:49-0700'
   mpich-default @3.4.2_0+gcc7 (active) requested_variants=''
 platform='darwin 9' archs='i386' date='2021-06-05T19:28:20-0700'
 }}}

--

-- 
Ticket URL: <https://trac.macports.org/ticket/63031#comment:1>
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