Check for off_t 64bits in FindKDE4Internal.cmake ?

[Alexander Neundorf]

Hi Dirk,

I'm looking through FindKDE4Internal.cmake, preparing it for KDE frameworks.
If found this commit from you:

http://quickgit.kde.org/index.php?p=kdelibs.git&a=commitdiff&h=ef244b3b241f20f0e50431a82efe6d4ddb54ea74&hp=1eccc216ef4f70f4ed195561c9a0abd7b5c89626

It adds a test whether off_t can hold 9223372036854775807, and if not, adds
-D_FILE_OFFSET_BITS=64 .

Wouldn't it be good enough to check whether off_t is 8 byte ?

Or, do you remember for which compiler or compiler version this was ?

Also, why not simply always adding -D_FILE_OFFSET_BITS=64 , as we do with 
-D_LARGEFILE64_SOURCE ?

Alex