[chore] unordered_dense: fix cmake inclusion and bundle-it

Signed-off-by: Caio Oliveira <caiooliveirafarias0@gmail.com>

.patch/unordered-dense/0001-avoid-memset-when-clearing-an-empty-table.patch

@@ -0,0 +1,26 @@
+From b3622608433c183ba868a1dc8dd9cf285eb3b916 Mon Sep 17 00:00:00 2001
+From: Dario Petrillo <dario.pk1@gmail.com>
+Date: Thu, 27 Nov 2025 23:12:38 +0100
+Subject: [PATCH] avoid extra memset when clearing an empty table
+
+---
+ include/ankerl/unordered_dense.h | 6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+diff --git a/include/ankerl/unordered_dense.h b/include/ankerl/unordered_dense.h
+index 0835342..4938212 100644
+--- a/include/ankerl/unordered_dense.h
++++ b/include/ankerl/unordered_dense.h
+@@ -1490,8 +1490,10 @@ class table : public std::conditional_t<is_map_v<T>, base_table_type_map<T>, bas
+     // modifiers //////////////////////////////////////////////////////////////
+ 
+     void clear() {
+-        m_values.clear();
+-        clear_buckets();
++        if (!empty()) {
++            m_values.clear();
++            clear_buckets();
++        }
+     }
+ 
+     auto insert(value_type const& value) -> std::pair<iterator, bool> {

CMakeLists.txt

@@ -576,6 +576,7 @@ add_subdirectory(externals)
 # pass targets from externals
 find_package(enet)
 find_package(MbedTLS)
+find_package(unordered_dense REQUIRED)
 
 if (ARCHITECTURE_x86 OR ARCHITECTURE_x86_64)
     find_package(xbyak)

externals/CMakeLists.txt

@@ -66,6 +66,9 @@ if (NOT TARGET LLVM::Demangle)
     add_library(LLVM::Demangle ALIAS demangle)
 endif()
 
+# unordered_dense
+AddJsonPackage(unordered-dense)
+
 if (YUZU_STATIC_ROOM)
     return()
 endif()
@@ -244,9 +247,6 @@ if (ENABLE_WEB_SERVICE OR ENABLE_UPDATE_CHECKER)
     AddJsonPackage(cpp-jwt)
 endif()
 
-# unordered_dense
-AddJsonPackage(unordered-dense)
-
 # FFMpeg
 if (YUZU_USE_EXTERNAL_FFMPEG OR YUZU_USE_BUNDLED_FFMPEG)
     add_subdirectory(ffmpeg)

externals/cpmfile.json

@@ -94,7 +94,11 @@
         "tag": "v%VERSION%",
         "hash": "b98b5d4d96f8e0081b184d6c4c1181fae4e41723b54bed4296717d7f417348b48fad0bbcc664cac142b8c8a47e95aa57c1eb1cf6caa855fd782fad3e3ab99e5e",
         "find_args": "CONFIG",
-        "git_version": "4.8.1"
+        "git_version": "4.8.1",
+        "bundled": true,
+        "patches": [
+            "0001-avoid-memset-when-clearing-an-empty-table.patch"
+        ]
     },
     "mbedtls": {
         "package": "MbedTLS",

src/common/CMakeLists.txt

@@ -253,11 +253,7 @@ if (lz4_ADDED)
     target_include_directories(common PRIVATE ${lz4_SOURCE_DIR}/lib)
 endif()
 
-if (TARGET unordered_dense::unordered_dense)
-    # weird quirk of system installs
-    target_link_libraries(common PUBLIC unordered_dense::unordered_dense)
-endif()
-target_link_libraries(common PUBLIC fmt::fmt stb::headers Threads::Threads)
+target_link_libraries(common PUBLIC fmt::fmt stb::headers Threads::Threads unordered_dense::unordered_dense)
 target_link_libraries(common PRIVATE lz4::lz4 LLVM::Demangle zstd::zstd)
 
 if(ANDROID)

src/dynarmic/CMakeLists.txt

@@ -118,6 +118,7 @@ endif()
 
 find_package(fmt 8 CONFIG)
 find_package(mcl 0.1.12 REQUIRED)
+find_package(unordered_dense REQUIRED)
 
 if ("arm64" IN_LIST ARCHITECTURE OR DYNARMIC_TESTS)
     find_package(oaknut 2.0.1 CONFIG)

src/dynarmic/src/dynarmic/CMakeLists.txt

@@ -1,4 +1,4 @@
-# SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+# SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
 # SPDX-License-Identifier: GPL-3.0-or-later
 include(TargetArchitectureSpecificSources)
 
@@ -356,20 +356,10 @@ set_target_properties(dynarmic PROPERTIES
     SOVERSION ${dynarmic_VERSION_MAJOR}.${dynarmic_VERSION_MINOR}
 )
 
-if (TARGET unordered_dense::unordered_dense)
-    # weird quirk of system installs
-    target_link_libraries(dynarmic
-    PRIVATE
-        unordered_dense::unordered_dense
-    )
-endif()
-
 target_compile_options(dynarmic PRIVATE ${DYNARMIC_CXX_FLAGS})
-target_link_libraries(dynarmic
-    PUBLIC
-        fmt::fmt
-        merry::mcl
-)
+
+target_link_libraries(dynarmic PRIVATE unordered_dense::unordered_dense)
+target_link_libraries(dynarmic PUBLIC fmt::fmt merry::mcl)
 
 if (BOOST_NO_HEADERS)
     target_link_libraries(dynarmic PRIVATE Boost::variant Boost::icl Boost::pool)