tree 25c871a49595b811b00da2eb13a48508a675c76a
parent 4350c0b26aee5c340014322f63c2d635d64f2d64
author Guy Harris <guy@alum.mit.edu> 1424912169 -0800
committer Guy Harris <guy@alum.mit.edu> 1425014402 -0800

Handle non-x86 K64/U32 combinations.

Have a gauntlet of ISAs where the ISA has both 32-bit and 64-bit
flavors and Linux has supported the 64-bit flavor since before
TPACKET_V2 as introduced; define ISA_64_BIT to the uname() .machine
value for the 64-bit architecture, and compare against that, rather than
a hardcoded "x86_64".

Clean up white space, expand some comments, and check whether uname()
fails.