Backport upstream pull request for ruby3.2 build issue

Add -Werror=implicit-function explicitly to detect such function

ruby-shadow-2.5.1-cflags.patch

@@ -8,4 +8,4 @@
 +$CFLAGS = "#{$CFLAGS} " + case RUBY_VERSION
            when /^1\.9/; '-DRUBY19'
            when /^2\./; '-DRUBY19'
-           when /^3\./; '-DRUBY19'
+           when /^3\./; '-DRUBY19 -DRUBY30'

ruby-shadow-2.5.1-extconf-ruby32-fix.patch

@@ -0,0 +1,29 @@
+commit eab4aba3f5e06ea8f124d3e5ff6b3fa88c4807cd
+Author: Mamoru TASAKA <mtasaka@fedoraproject.org>
+Date:   Thu Dec 1 12:23:05 2022 +0900
+
+    extconf.rb: use Rbconfig::CONFIG instead of mkmf CONFIG
+    
+    In mkmf.rb CONFIG is defined as CONFIG is defined as RbConfig::MAKEFILE_CONFIG
+    and RbConfig::MAKEFILE_CONFIG is almost same as RbConfig::CONFIG
+    except that RbConfig::MAKEFILE_CONFIG uses reference for other variables.
+    
+    Using CONFIG in extconf.rb causes error with ruby3.2 because now
+    CONFIG['host_os'] uses reference for target_os variable, and extconf.rb
+    expects that this variable is all expanded. So instead, use RbConfig::CONFIG .
+    
+    Closes #30
+
+diff --git a/extconf.rb b/extconf.rb
+index d17f926..55dcff5 100644
+--- a/extconf.rb
++++ b/extconf.rb
+@@ -14,7 +14,7 @@ $CFLAGS = case RUBY_VERSION
+           else; ''
+           end
+ 
+-implementation = case CONFIG['host_os']
++implementation = case RbConfig::CONFIG['host_os']
+                  when /linux/i; 'shadow'
+                  when /sunos|solaris/i; 'shadow'
+                  when /freebsd|mirbsd|netbsd|openbsd/i; 'pwd'

ruby-shadow-2.5.1-taintedness-ruby32-removal.patch

@@ -0,0 +1,72 @@
+commit 7b450355b540df43bab2617fe25437dc3dde12af
+Author: Mamoru TASAKA <mtasaka@fedoraproject.org>
+Date:   Thu Dec 1 12:54:31 2022 +0900
+
+    Replace taintedness function with generic one
+    
+    Taintedness is deprecated from ruby 2.7.0 and is removed on ruby3.2.0preview3.
+    To keep compatibility with ruby older than 2.7, introduce -DRUBY30 compilation
+    flag from ruby3.0 and onwards, and replace taintedness function with generic one
+    when RUBY30 is defined (i.e. from ruby3.0 and onwards)
+
+diff --git a/extconf.rb b/extconf.rb
+index d17f926..04f8f97 100644
+--- a/extconf.rb
++++ b/extconf.rb
+@@ -10,7 +10,7 @@ require 'rbconfig'
+ $CFLAGS = case RUBY_VERSION
+           when /^1\.9/; '-DRUBY19'
+           when /^2\./; '-DRUBY19'
+-          when /^3\./; '-DRUBY19'
++          when /^3\./; '-DRUBY19 -DRUBY30'
+           else; ''
+           end
+ 
+diff --git a/pwd/shadow.c b/pwd/shadow.c
+index eeb96d4..e73e0db 100644
+--- a/pwd/shadow.c
++++ b/pwd/shadow.c
+@@ -56,8 +56,13 @@ static VALUE convert_pw_struct( struct passwd *entry )
+ {
+   /* Hmm. Why custom pw_change instead of sp_lstchg? */
+   return rb_struct_new(rb_sPasswdEntry,
++#if defined(RUBY30)
++         rb_str_new2(entry->pw_name), /* sp_namp */
++         rb_str_new2(entry->pw_passwd), /* sp_pwdp, encryped password */
++#else
+          rb_tainted_str_new2(entry->pw_name), /* sp_namp */
+          rb_tainted_str_new2(entry->pw_passwd), /* sp_pwdp, encryped password */
++#endif
+          Qnil, /* sp_lstchg, date when the password was last changed (in days since Jan 1, 1970) */
+          Qnil, /* sp_min, days that password must stay same */
+          Qnil, /* sp_max, days until password changes. */
+@@ -66,7 +71,11 @@ static VALUE convert_pw_struct( struct passwd *entry )
+          INT2FIX(difftime(entry->pw_change, 0) / (24*60*60)), /* pw_change */
+          INT2FIX(difftime(entry->pw_expire, 0) / (24*60*60)), /* sp_expire */
+          Qnil, /* sp_flag */
++#if defined(RUBY30)
++         rb_str_new2(entry->pw_class), /* sp_loginclass, user access class */
++#else
+          rb_tainted_str_new2(entry->pw_class), /* sp_loginclass, user access class */
++#endif
+          NULL);
+ }
+ 
+diff --git a/shadow/shadow.c b/shadow/shadow.c
+index 35a77a1..5202ce5 100644
+--- a/shadow/shadow.c
++++ b/shadow/shadow.c
+@@ -34,8 +34,13 @@ static VALUE rb_eFileLock;
+ static VALUE convert_pw_struct( struct spwd *entry ) 
+ {
+   return rb_struct_new(rb_sPasswdEntry,
++#if defined(RUBY30)
++		      rb_str_new2(entry->sp_namp),
++		      rb_str_new2(entry->sp_pwdp),
++#else
+ 		      rb_tainted_str_new2(entry->sp_namp),
+ 		      rb_tainted_str_new2(entry->sp_pwdp),
++#endif
+ 		      INT2FIX(entry->sp_lstchg),
+ 		      INT2FIX(entry->sp_min),
+ 		      INT2FIX(entry->sp_max),

rubygem-ruby-shadow.spec

@@ -2,13 +2,19 @@
 
 Name:           rubygem-%{gem_name}
 Version:        2.5.1
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Ruby shadow password module
 License:        Public Domain
 URL:            https://github.com/apalmblad/ruby-shadow
 Source0:        http://rubygems.org/gems/%{gem_name}-%{version}.gem
 Source1:        https://raw.githubusercontent.com/apalmblad/ruby-shadow/master/test/basic_test.rb
 Patch0:         ruby-shadow-2.5.1-cflags.patch
+# https://github.com/apalmblad/ruby-shadow/pull/29
+# Ruby3.2 completely removes taintedness function
+Patch1:         ruby-shadow-2.5.1-taintedness-ruby32-removal.patch
+# https://github.com/apalmblad/ruby-shadow/pull/31
+# Ruby3.2 mkmf CONFIG uses reference for other variables yet more
+Patch2:         ruby-shadow-2.5.1-extconf-ruby32-fix.patch
 BuildRequires:  gcc
 BuildRequires:  ruby(release)
 BuildRequires:  rubygems-devel
@@ -32,11 +38,13 @@ Documentation for %{name}.
 gem unpack %{SOURCE0}
 %setup -q -D -T -n  %{gem_name}-%{version}
 gem spec %{SOURCE0} -l --ruby > %{gem_name}.gemspec
+%patch1 -p1
+%patch2 -p1
 %patch0 -p1
 cp %{SOURCE1} .
 
 %build
-export CONFIGURE_ARGS="--with-cflags='%{optflags}'"
+export CONFIGURE_ARGS="--with-cflags='%{optflags} -Werror=implicit-function-declaration'"
 gem build %{gem_name}.gemspec
 
 # %%gem_install compiles any C extensions and installs the gem into ./%%gem_dir
@@ -83,6 +91,10 @@ popd
 %doc %{gem_instdir}/README.euc
 
 %changelog
+* Thu Dec  1 2022 Mamoru TASAKA <mtasaka@fedoraproject.org> - 2.5.1-2
+- Backport upstream pull request for ruby3.2 build issue
+- Add -Werror=implicit-function explicitly to detect such function
+
 * Thu Dec  1 2022 Mamoru TASAKA <mtasaka@fedoraproject.org> - 2.5.1-1
 - 2.5.1