Integrate with Sarathy.

p4raw-id: //depot/cfgperl@4091

diff --cc perl.h
Simple merge

diff --cc perlapi.c
index 1945146,0e54575..0e54575
mode 100755,100644..100755
--- 1/perlapi.c
--- 2/perlapi.c
+++ b/perlapi.c

diff --cc pod/perldelta.pod
Simple merge

diff --cc pp.c
Simple merge