try fix build issues

rubygem-simpleidn.spec

@@ -1,28 +1,4 @@
-#
-# spec file for package rubygem-simpleidn
-#
-# Copyright (c) 2024 SUSE LLC
-#
-# All modifications and additions to the file contributed by third parties
-# remain the property of their copyright owners, unless otherwise agreed
-# upon. The license for this file, and modifications and additions to the
-# file, is the same license as for the pristine package itself (unless the
-# license for the pristine package is not an Open Source License, in which
-# case the license is the MIT License). An "Open Source License" is a
-# license that conforms to the Open Source Definition (Version 1.9)
-# published by the Open Source Initiative.
-
-# Please submit bugfixes or comments via https://bugs.opensuse.org/
-#
-
-
-#
-# This file was generated with a gem2rpm.yml and not just plain gem2rpm.
-# All sections marked as MANUAL, license headers, summaries and descriptions
-# can be maintained in that file. Please consult this file before editing any
-# of those fields
-#
-
+%global gem_name simpleidn
 Name:           rubygem-simpleidn
 Version:        0.2.3
 Release:        0
@@ -42,14 +18,23 @@ This gem allows easy conversion from punycode ACE strings to unicode UTF-8
 strings and vice-versa.
 
 %prep
-
+%autosetup -n %{mod_full_name} -p1
+gem unpack %{SOURCE0}
 %build
-
+gem build ../%{mod_full_name}.gemspec
+%gem_install
 %install
-%gem_install \
-  --doc-files="LICENCE README.rdoc" \
-  -f
+mkdir -p %{buildroot}%{gem_dir}
+cp -a .%{gem_dir}/* \
+        %{buildroot}%{gem_dir}/
+%files
+%dir %{gem_instdir}
+%{gem_libdir}
+%{_datadir}/gems/doc/%{mod_full_name}/
+%{_datadir}/gems/gems/%{mod_full_name}/
+%exclude %{gem_cache}
+%{gem_spec}
 
-%gem_packages
 
 %changelog
+