integrate cfgperl changes into mainline

diff --cc config_h.SH
Simple merge
diff --cc installperl
Simple merge
diff --cc pod/perldelta.pod
Simple merge
		1	2
config_h.SH	patch \|	diff1 \|	diff2 \|	blob \| history
installperl	patch \|	diff1 \|	diff2 \|	blob \| history
pod/perldelta.pod	patch \|	diff1 \|	diff2 \|	blob \| history