Oliver Tappe af2da315dc Fix the larger problem that was hiding behind the build problem of set_haiku_revsion on FreeBSD:
* the length of the sHaikuRevision character array symbol needs to be set explicitly,
  as using either _SYS_NAMELEN or sizeof(utsname::version) will only return the values
  for the host, which may not match ours, thus potentially causing problems when using
  sHaikuRevision
* add headers/private/system_revision.h which defines SYSTEM_REVISION_LENGTH to 128
* adjust definitions of sHaikuRevision in libroot and kernel accordingly
utsname::version is shorter than SYSTEM_REVISION_LENGTH, but that doesn't cause any harm
until we have indeed switched to a DVCS (in which case longer revision strings will be 
cut off by 'uname').


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41421 a95241bf-73f2-0310-859d-f6bbb57e9c96
2011-05-10 15:35:04 +00:00
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