more boilerplate for older EUMM

diff --git a/Makefile.PL b/Makefile.PL
index cd6305d..76a585d 100644 (file)
--- a/Makefile.PL
+++ b/Makefile.PL
@@ -87,6 +87,15 @@ $WriteMakefileArgs{PREREQ_PM} = {
 delete $WriteMakefileArgs{CONFIGURE_REQUIRES}
   if $eumm_version < 6.51_03;
 
+delete $WriteMakefileArgs{MIN_PERL_VERSION}
+  if $eumm_version < 6.48;
+
+delete @WriteMakefileArgs{qw(META_ADD META_MERGE)}
+  if $eumm_version < 6.46;
+
+delete $WriteMakefileArgs{LICENSE}
+  if $eumm_version < 6.31;
+
 WriteMakefile(%WriteMakefileArgs);
 
 # can we locate a (the) C compiler