Add patch to fix building Abseil with CMake 3.30.0

Fixes #158

Rakefile

@@ -16,6 +16,9 @@ re2_archive = File.join("ports/archives", File.basename(re2_recipe.files[0][:url
 
 re2_gemspec.files << abseil_archive
 re2_gemspec.files << re2_archive
+Dir[File.join("patches/**/*.patch")].each do |patch|
+  re2_gemspec.files << patch
+end
 
 cross_platforms = %w[
   aarch64-linux
@@ -39,7 +42,7 @@ Rake::ExtensionTask.new('re2', re2_gemspec) do |e|
   e.config_options << '--disable-system-libraries'
   e.cross_platform = cross_platforms
   e.cross_compiling do |spec|
-    spec.files.reject! { |path| File.fnmatch?('ports/*', path) }
+    spec.files.reject! { |path| File.fnmatch?('ports/*', path) || File.fnmatch?('patches/*', path) }
     spec.dependencies.reject! { |dep| dep.name == 'mini_portile2' }
   end
 end

ext/re2/recipes.rb

@@ -20,6 +20,7 @@ def load_recipes
       url: "https://github.com/abseil/abseil-cpp/archive/refs/tags/#{recipe.version}.tar.gz",
       sha256: dependencies['abseil']['sha256']
     }]
+    recipe.patch_files = Dir[File.join(PACKAGE_ROOT_DIR, "patches/abseil/*.patch")].sort
   end
 
   re2_recipe = build_recipe('libre2', dependencies['libre2']['version']) do |recipe|

patches/abseil/0001-Avoid-export-of-testonly-target-absl-test_allocator-.patch

@@ -0,0 +1,29 @@
+From 779a3565ac6c5b69dd1ab9183e500a27633117d5 Mon Sep 17 00:00:00 2001
+From: Derek Mauro <[email protected]>
+Date: Tue, 30 Jan 2024 10:13:25 -0800
+Subject: [PATCH] Avoid export of testonly target absl::test_allocator in CMake
+ builds
+
+Closes #1536
+
+PiperOrigin-RevId: 602764437
+Change-Id: Ia5c20a3874262a2ddb8797f608af17d7e86dd6d6
+---
+ absl/container/CMakeLists.txt | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/absl/container/CMakeLists.txt b/absl/container/CMakeLists.txt
+index 449a2cad..ee9ca9c3 100644
+--- a/absl/container/CMakeLists.txt
++++ b/absl/container/CMakeLists.txt
+@@ -213,6 +213,7 @@ absl_cc_library(
+   DEPS
+     absl::config
+     GTest::gmock
++  TESTONLY
+ )
+
+ absl_cc_test(
+-- 
+2.45.2
+