more sophisticated code is needed if we actually have build-phase prereqs

diff --git a/Makefile.PL b/Makefile.PL
index 76a585d..81d1a51 100644 (file)
--- a/Makefile.PL
+++ b/Makefile.PL
@@ -67,6 +67,8 @@ for (qw(configure build test runtime)) {
   defined $r->{$_} or delete $r->{$_} for keys %$r;
 }
 
+# dynamic prereqs get added here.
+
 # we require Cpanel::JSON::XS, except if JSON::XS is already installed.
 # (we also always recommend Cpanel::JSON::XS, just to make sure.)
 $WriteMakefileArgs{PREREQ_PM}{'Cpanel::JSON::XS'} = '2.3310'
@@ -74,6 +76,9 @@ $WriteMakefileArgs{PREREQ_PM}{'Cpanel::JSON::XS'} = '2.3310'
 
 $WriteMakefileArgs{MIN_PERL_VERSION} = delete $WriteMakefileArgs{PREREQ_PM}{perl} || 0;
 
+die 'attention developer: you need to do a sane meta merge here!'
+  if keys %{$WriteMakefileArgs{BUILD_REQUIRES}};
+
 $WriteMakefileArgs{BUILD_REQUIRES} = {
     %{$WriteMakefileArgs{BUILD_REQUIRES} || {}},
     %{delete $WriteMakefileArgs{TEST_REQUIRES}}