File cmake-fix-ruby-test.patch of Package cmake

From c4ee728699845672c770350aba8bbbf5bab9869f Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Thu, 18 Jun 2026 10:38:51 -0400
Subject: [PATCH] FindRuby: Fix vendor directory discovery

The `ruby -r vendor-specific` module no longer exists.
Use `ruby -r rbconfig` instead.

This patch has been carried by openSUSE's cmake package:

* https://build.opensuse.org/projects/openSUSE:Factory/packages/cmake/files/cmake-fix-ruby-test.patch?rev=274
* https://build.opensuse.org/package/rdiff/openSUSE:Factory/cmake?rev=106
* https://build.opensuse.org/package/rdiff/openSUSE:Factory/cmake?rev=57
* https://build.opensuse.org/package/rdiff/openSUSE:Factory/cmake?rev=56

Fixes: #27888
---
 Modules/FindRuby.cmake | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Modules/FindRuby.cmake b/Modules/FindRuby.cmake
index 863f70a7f2..6f865da129 100644
--- a/Modules/FindRuby.cmake
+++ b/Modules/FindRuby.cmake
@@ -407,7 +407,7 @@ if (Ruby_EXECUTABLE AND NOT Ruby_EXECUTABLE STREQUAL "${_Ruby_EXECUTABLE_LAST_QU
   _RUBY_CONFIG_VAR("sitelibdir" Ruby_SITELIB_DIR)
 
   # vendor_ruby - TODO - Not relevant and should be removed.
-  execute_process(COMMAND "${Ruby_EXECUTABLE}" -r vendor-specific -e "print 'true'"
+  execute_process(COMMAND ${Ruby_EXECUTABLE} -r rbconfig -e "print 'true' unless RbConfig::CONFIG['vendorarchdir'].nil?"
                   OUTPUT_VARIABLE Ruby_HAS_VENDOR_RUBY ERROR_QUIET)
 
   if (Ruby_HAS_VENDOR_RUBY)
-- 
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