Fix oversight for [[:<:]] patch when UTF not configured.


git-svn-id: svn://vcs.exim.org/pcre/code/trunk@1409 2f5784b3-3f2a-0410-8824-cb99058d5e15
When running the tests for many different configurations, add compiler warning
switches when gcc is being used, and fail if any warnings are generated.


git-svn-id: svn://vcs.exim.org/pcre/code/trunk@1410 2f5784b3-3f2a-0410-8824-cb99058d5e15
Fix internal error for XCLASS in 16/32-bit non-UCP versions with heap 
recursion, and get rid of some compiler warnings when UCP is not configured.


git-svn-id: svn://vcs.exim.org/pcre/code/trunk@1411 2f5784b3-3f2a-0410-8824-cb99058d5e15