add persistent SAGE64 building switch on OSX and Solaris

[williamstein]

Should there be something to keep people from building on 32-bit then 64-bit then 32-bit.

Component: build

Issue created by migration from https://trac.sagemath.org/ticket/22

[williamstein]

comment:1

[01:10] <william> the problem was doing something like "sage -br" on both a 32-bit and 64-bit machine but
[01:10] <william> with a shared filesystem.
[01:10] <mabshoff> Ah, that makes sense.
[01:10] <william> I.e., when you build sage for one architecture, maybe you shouldn't be allowed to
[01:10] <william> do "sage -br" or "sage -i" if the architectrue doesn't match.
[01:11] <mabshoff> okay,
[01:11] <william> or something like that.

[williamstein]

comment:3

[10:01] <wstein> regarding #22 the idea is that people might do "sage -br" on one machine, then login to another machine that
[10:02] <wstein> nsf mounts the same directory, and muck things up.
[10:02] <wstein> We should cache "uname -p" in SAGE_ROOT, and if it changes not allow "sage -br" unless the user
[10:02] <wstein> (or sage -i) or sage -upgrade, unless the user manually deletes the file.
[10:03] <wstein> Thoughts?

[garyfurnish]

comment:7

Fixed in #1261 (PBuild)

[sagetrac-mabshoff]

Attachment: trac_22.patch.gz