Upstream's syntax is mis-parsed by the rpm dependency generator as a hard requirement.

--- lib/MCE/Channel.pm
+++ lib/MCE/Channel.pm
@@ -27,10 +27,8 @@ my ( $freeze, $thaw );
 
 BEGIN {
    if ( ! defined $INC{'PDL.pm'} ) {
-      local $@; eval '
-         use Sereal::Encoder 3.015 qw( encode_sereal );
-         use Sereal::Decoder 3.015 qw( decode_sereal );
-      ';
+      local $@;
+      eval 'use Sereal::Encoder 3.015 qw( encode_sereal ); use Sereal::Decoder 3.015 qw( decode_sereal );';
       if ( ! $@ ) {
          my $encoder_ver = int( Sereal::Encoder->VERSION() );
          my $decoder_ver = int( Sereal::Decoder->VERSION() );
--- lib/MCE.pm
+++ lib/MCE.pm
@@ -36,10 +36,7 @@ BEGIN {
    $_oid = "$$.$_tid";
 
    if ($] ge '5.008008' && !$INC{'PDL.pm'}) {
-      eval '
-         use Sereal::Encoder 3.015 qw( encode_sereal );
-         use Sereal::Decoder 3.015 qw( decode_sereal );
-      ';
+      eval 'use Sereal::Encoder 3.015 qw( encode_sereal ); use Sereal::Decoder 3.015 qw( decode_sereal );';
       if ( !$@ ) {
          my $_encoder_ver = int( Sereal::Encoder->VERSION() );
          my $_decoder_ver = int( Sereal::Decoder->VERSION() );