Two CMake patches (remove bash-ism, add missing defines).


git-svn-id: svn://vcs.exim.org/pcre/code/trunk@1368 2f5784b3-3f2a-0410-8824-cb99058d5e15
Update \8 and \9 handling to match most recent Perl.


git-svn-id: svn://vcs.exim.org/pcre/code/trunk@1369 2f5784b3-3f2a-0410-8824-cb99058d5e15