[NOBUGS] McStas 1.12c on Mac OS X Lion - hold your horses!

[Willendrup, Peter Kjær]

Dear McStas and Mac OS users,


The newly released Mac OS X 10.7 Lion includes a lot of nice
upgrades from Apple - including some that break the tool-layer and
mpi support for McStas:

* mpi compile fails (The system-provided mpi is not detected by the McStas configure script)

* mcgui does not start (mcgui requires perl::Tk, and the version we ship with McStas 1.12c explicitly requires perl 5.8, which has been removed from Lion)

* mcplot does not plot with PGPLOT backend (For plotting, we rely on the SciKarl port of pgplot, perl::PDL and perl::PGPLOT. The SciKarl perl modules are built for perl 5.8 which has been removed from Lion)

In conclusion: If you want to keep a functional McStas install, please do not upgrade to Lion yet!


Best regards,

Peter Willendrup

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Peter Willendrup - Development engineer

Risø DTU, Materials Research Division
Frederiksborgvej 399
DK-4000 Roskilde

Tlf.: (+45) 4677 5862
Mobil.: (+45) 2125 4612
Fax.: (+45) 4766 5758
Email: pkwi at risoe.dtu.dk
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