If one tries to build Sage on OpenSolaris, python will not build, complaining 
about a missing md5 module.


   File "<string>", line 1, in <module>
   File "/export/home/drkirkby/sage-4.2/local/lib/python/hashlib.py", line 136, 
in <module>
     md5 = __get_builtin_constructor('md5')
   File "/export/home/drkirkby/sage-4.2/local/lib/python/hashlib.py", line 63, 
in __get_builtin_constructor
     import _md5
ImportError: No module named _md5

real    2m15.850s
user    1m46.382s
sys    0m19.649s
sage: An error occurred while installing python-2.6.2.p4


William said the other day the way around this is to build the OpenSSL 
libraries 
first. Then I looked and see that the OpenSSL libraries were at one time 
included in Sage, but were removed since they are not GPL. This was done in 
ticket #478

http://trac.sagemath.org/sage_trac/ticket/478

So I'm not sure what to do here. Clearly I could install the OpenSSL libraries, 
and will no doubt do that so progress can be made. But this seems quite a 
fundamental problem. There seems two choices

* Include OpenSSL with Sage, which we can't do as its not GPL
* Tell people to build that themselves, which is still meaning

BTW, I was hoping to get my changes for the code which checks the prerequisites 
for Sage (version 0.5)  reviewed.

http://trac.sagemath.org/sage_trac/ticket/7352

Should OpenSSL library support be considered a prerequiste for Sage?

There are both legal and technical issues here.

Dave


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