Hi all,

Occasionally we have an email on the list where someone building the gem5.debug 
binary has sporadic linking errors due to undefined references. I did some 
additional digging after running in to this, and it turns out we have tons of 
places in the code base that are actually not compliant with the C++ standard, 
where we have a static const class member with a declaration in a header, but 
no definition in the implementation. I fixed it for the Request class 
(http://reviews.gem5.org/r/2925/) by turning the constants into a C++11 typed 
enum, but there are lots of other instances that should eventually be 
addresses. I suggest we solve this organically, when ever someone has issues, 
submit a fix for that class. Just be aware…

Andreas

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