From 0e6e47ea2e471811a138faa5b43d5cf0f042612a Mon Sep 17 00:00:00 2001
From: Arne Johannessen <ajnn@cpan.org>
Date: Sat, 18 Oct 2025 23:27:03 +0200
Subject: [PATCH] Don't overwrite existing prereq versions in wrapper

---
 lib/Alien/Base/Wrapper.pm |  2 +-
 t/alien_base_wrapper.t    | 10 ++++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/lib/Alien/Base/Wrapper.pm b/lib/Alien/Base/Wrapper.pm
index ad7bdf96..f9a6bcf5 100644
--- a/lib/Alien/Base/Wrapper.pm
+++ b/lib/Alien/Base/Wrapper.pm
@@ -377,7 +377,7 @@ sub mm_args2
 
   foreach my $module (keys %{ $self->{requires} })
   {
-    $args{CONFIGURE_REQUIRES}->{$module} = $self->{requires}->{$module};
+    $args{CONFIGURE_REQUIRES}->{$module} ||= $self->{requires}->{$module};
   }
 
   %args;
diff --git a/t/alien_base_wrapper.t b/t/alien_base_wrapper.t
index 494c3834..08a7f7ce 100644
--- a/t/alien_base_wrapper.t
+++ b/t/alien_base_wrapper.t
@@ -261,6 +261,16 @@ subtest 'combine aliens' => sub {
       },
     );
 
+    %mm_args = Alien::Base::Wrapper->mm_args2(
+      CONFIGURE_REQUIRES => {
+        'ExtUtils::MakeMaker'  => '7.12',
+        'Alien::Base::Wrapper' => '0',
+      },
+    );
+
+    is $mm_args{CONFIGURE_REQUIRES}{'ExtUtils::MakeMaker'},  '7.12';
+    is $mm_args{CONFIGURE_REQUIRES}{'Alien::Base::Wrapper'}, '1.97';
+
   };
 
   subtest 'WriteMakefile' => sub {