Start notifier thread again if we were forked, to solve Rivet bug 55153 - RFE [a0bc856dcd]
Rebase to core-8-5-branch
Add "testfork" test command to be usable in testcase.
Test file tests/unixForkEvent.test added
Fix bug which hangs iocmd.tf-32.1
Test-case should pass on Darwin or with non-threaded build as well.
Use pthread_atfork() when available.
Tcl_InitNotifier() call in TestforkObjCmd() is only necessary when pthread_atfork() is not available.
rebase
rebase
Make sure that the notifierMutex and notifierCV in a forked child cannot block anything, even though the initialization of the Notifier Thread in the parent is not finished yet.
rebase
Fixed test case variable clash with 'folder'
Tcl_InitNotifier: Bug [a0bc856dcd]. 
Start notifier thread again if we were forked, to solve Rivet bug 55153
Tcl_InitNotifier: Bug [a0bc856dcd]. Start notifier thread again if we were forked, to solve Rivet bug 55153
[1905562] [8d2c0da36d] Raise the recursion limits on regexps to allow
existing regexps "in the wild" to continue working with Tcl 8.6.
Latest example comes from DejaGnu.
[9d61624b3d]: Stop crashes when emptying the superclass slot.
Deal with the elaborate rip-apart-a-metaclass case as well.
[3611643fff]: Support TclOO in autoload mechanism.
Mark unixforkevent-1.1 nonPortable, until proven on more platforms.
Mark unixforkevent-1.1 nonPortable, until proven on more platforms. 
Make sure that when testing for pthread_atfork the thread library is taken into account.