-use Encode qw(encode);
-
-use constant HAS_ENCODE_GUESS => do { local $@; eval { require Encode::Guess; 1 } };
-use constant HAS_ENCODE_DETECT => do { local $@; eval { require Encode::Detect::Detector; 1 } };
+use constant HAS_ENCODE_GUESS => Encode::Guess->require;
+use constant HAS_ENCODE_DETECT => Encode::Detect::Detector->require;