perl-functions.eclass: add perl_get_vendorlib

1 files changed, 20 insertions, 1 deletions

diff --git a/eclass/perl-functions.eclass b/eclass/perl-functions.eclass
index 5073215e0e72..6d2fa2eed69c 100644
--- a/eclass/perl-functions.eclass
+++ b/eclass/perl-functions.eclass
@@ -447,4 +447,23 @@ perl_get_raw_vendorlib() {
 		-e'exists $Config{$ARGV[0]} || die qq{No such Config key "$ARGV[0]"};
 		   print $Config{$ARGV[0]};
 		   exit 0' -- "installvendorlib" || die "Can't extract installvendorlib from Perl Configuration"
-}
\ No newline at end of file
+}
+
+# @FUNCTION: perl_get_vendorlib
+# @USAGE: perl_get_vendorlib
+# @DESCRIPTION:
+#
+# Convenience helper for returning Perls' vendor install root
+# without EPREFIXing.
+perl_get_vendorlib() {
+	debug-print-function $FUNCNAME "$@"
+
+	[[ $# -lt 1 ]] || die "${FUNCNAME}: Too many parameters ($#)"
+
+	# Requires perl 5.14 for /r attribute of s///
+	# Just in case somebody out there is stuck in a time warp: upgrade perl first
+	perl -M5.014 -MConfig \
+		-e'exists $Config{$ARGV[0]} || die qq{No such Config key "$ARGV[0]"};
+		   print $Config{$ARGV[0]} =~ s{\A\Q$ARGV[1]\E}{}r;
+		   exit 0' -- "installvendorlib" "$EPREFIX" || die "Can't extract installvendorlib from Perl Configuration"
+}