* fix FPC_USE_LIBC for inotify and clock* functions, and always link librt when this unit is used under FPC_USE_LIBC.
  make all building failed otherwise because fppkg seems to import unit linux somewhere. 


git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@26199 3ad0048d-3df7-0310-abae-a5850022a9f2