bug#19420: intermittent segfault using grep -P

[Paul Eggert]

J.P. Hendrix wrote:
Are you saying a bug should be registered with pcre.org?

That's what I'd suggest, yes.  I also can reproduce the bug with Mr. Tanaka's 
recipe on CentOS 6.5 x86-64.  Wow, that's pretty deep recursion that 'match' is 
doing....