diff -up perl-5.28.0-RC1/Configure.orig   perl-5.28.0-RC1/Configure

--- perl-5.28.0-RC1/Configure.orig   2018-05-21 12:44:04.000000000 +0200

+++ perl-5.28.0-RC1/Configure	2018-05-22 12:21:53.908599933 +0200

@@ -7269,8 +7269,8 @@ esac'

 : Reproduce behavior of 5.005 and earlier, maybe drop that in 5.7.

 case "$installstyle" in

 '')	case "$prefix" in

-		*perl*) dflt='lib';;

-		*) dflt='lib/perl5' ;;

+		*perl*) dflt='lib64';;

+		*) dflt='lib64/perl5' ;;

 	esac

 	;;

 *)	dflt="$installstyle" ;;

@@ -7336,8 +7336,8 @@ esac

 : /opt/perl/lib/perl5... would be redundant.

 : The default "style" setting is made in installstyle.U

 case "$installstyle" in

-*lib/perl5*) set dflt privlib lib/$package/$version ;;

-*)	 set dflt privlib lib/$version ;;

+*lib64/perl5*) set dflt privlib lib64/$package/$version ;;

+*)	 set dflt privlib lib64/$version ;;

 esac

 eval $prefixit

 $cat <

@@ -7584,8 +7584,8 @@ siteprefixexp="$ansexp"

 prog=`echo $package | $sed 's/-*[0-9.]*$//'`

 case "$sitelib" in

 '') case "$installstyle" in

-	*lib/perl5*) dflt=$siteprefix/lib/$package/site_$prog/$version ;;

-	*)	 dflt=$siteprefix/lib/site_$prog/$version ;;

+	*lib64/perl5*) dflt=$siteprefix/lib64/$package/site_$prog/$version ;;

+	*)	 dflt=$siteprefix/lib64/site_$prog/$version ;;

 	esac

 	;;

 *)	dflt="$sitelib"

@@ -8001,8 +8001,8 @@ case "$vendorprefix" in

 	'')

 		prog=`echo $package | $sed 's/-*[0-9.]*$//'`

 		case "$installstyle" in

-		*lib/perl5*) dflt=$vendorprefix/lib/$package/vendor_$prog/$version ;;

-		*)	     dflt=$vendorprefix/lib/vendor_$prog/$version ;;

+		*lib64/perl5*) dflt=$vendorprefix/lib64/$package/vendor_$prog/$version ;;

+		*)	     dflt=$vendorprefix/lib64/vendor_$prog/$version ;;

 		esac

 		;;

 	*)	dflt="$vendorlib"