[perl-gtk2-unique] Makefile.PL: added 'configure_requires' to META_MERGE block

[Brian Manning <bmanning src gnome org>]

commit 825191e2debd1095c5cd740afe35113993c228d1
Author: Brian Manning <brian xaoc org>
Date:   Mon Jan 11 21:30:30 2021 -0800

    Makefile.PL: added 'configure_requires' to META_MERGE block
    
    - Added 'Gtk2' module as a 'configure_requires' dependency

 Makefile.PL | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)
---
diff --git a/Makefile.PL b/Makefile.PL
index 0633b34..9ba0638 100644
--- a/Makefile.PL
+++ b/Makefile.PL
@@ -26,6 +26,10 @@ sub main {
        my @deps = ('Glib');
        my %pkgconfig;
        
+   my %pre_reqs = (
+      # Other versions might work too (Ubuntu 8.04 has this version)
+      'Gtk2' => '1.161',
+   );
        eval {
                %pkgconfig = ExtUtils::PkgConfig->find("unique-1.0");
                push @XS_FILES, <xs/*.xs>;
@@ -72,11 +76,7 @@ sub main {
                VERSION_FROM  => File::Spec->catfile('lib', 'Gtk2', 'Unique.pm'),
                ABSTRACT_FROM => File::Spec->catfile('lib', 'Gtk2', 'Unique.pm'),
                LICENSE       => 'perl, lgpl',
-
-               PREREQ_PM     => {
-                       'Gtk2' => '1.161', # Other versions might work too (Ubuntu 8.04 has this version)
-               },
-               PREREQ_FATAL  => 1,
+               PREREQ_PM     => { %pre_reqs, },
                
                XSPROTOARG    => '-noprototypes ',
                MAN3PODS      => {
@@ -85,6 +85,7 @@ sub main {
                
                META_MERGE => {
                        repository => 'http://github.com/potyl/gtk2-unique/tree/master',
+         configure_requires => \%pre_reqs,
                },
                
                $DEPENDS->get_makefile_vars(),