Is IRIX 6.5 obsolete?

[Simon Josefsson]

Do we want to support IRIX 6.5?  It doesn't appear to have strdup:

cc-1515 c89: ERROR File = client.c, Line = 45
  A value of type "int" cannot be assigned to an entity of type "char *".
    *output = strdup (p);
            ^
1 error detected in the compilation of "client.c".

Would this be a reason to un-deprecate the 'strdup' module?

According to

http://www.sgi.com/products/software/irix/releases/

the last release of IRIX 6.5 was in February 2006, but according to

http://www.sgi.com/services/support/irix_mips_support.html

it is still supported through December 2013.

I'm leaning towards treating it as obsolete, but I thought the data
points may provoke some opinions.

/Simon