depends: Update Qt to 6.8.4

diff --git a/depends/packages/qt.mk b/depends/packages/qt.mk
index 500a2729..fdc39696 100644
--- a/depends/packages/qt.mk
+++ b/depends/packages/qt.mk
@@ -14,7 +14,6 @@ $(package)_patches_path := $(qt_details_patches_path)
 $(package)_patches := cocoa_compat.patch
 $(package)_patches += dont_hardcode_pwd.patch
 $(package)_patches += qtbase_avoid_qmain.patch
-$(package)_patches += qtbase_platformsupport.patch
 $(package)_patches += qtbase_plugins_cocoa.patch
 $(package)_patches += qtbase_skip_tools.patch
 $(package)_patches += rcc_hardcode_timestamp.patch
@@ -181,7 +180,11 @@ $(package)_cmake_opts += --log-level=STATUS
 endif
 
 $(package)_cmake_opts += -DQT_USE_DEFAULT_CMAKE_OPTIMIZATION_FLAGS=ON
-$(package)_cmake_opts += -DCMAKE_C_FLAGS="$$($(package)_cppflags) $$($$($(package)_type)_CFLAGS) -ffile-prefix-map=$$($(package)_extract_dir)=/usr"
+# The bundled libpng 1.6.49 in Qt 6.8.4 introduced support for
+# the RISC-V Vector Extension (RVV). However, the resulting library
+# fails to link when cross-compiling for riscv64-linux-gnu.
+# Disable this feature for now.
+$(package)_cmake_opts += -DCMAKE_C_FLAGS="$$($(package)_cppflags) -DPNG_RISCV_RVV_OPT=0 $$($$($(package)_type)_CFLAGS) -ffile-prefix-map=$$($(package)_extract_dir)=/usr"
 $(package)_cmake_opts += -DCMAKE_C_FLAGS_RELEASE="$$($$($(package)_type)_release_CFLAGS)"
 $(package)_cmake_opts += -DCMAKE_C_FLAGS_DEBUG="$$($$($(package)_type)_debug_CFLAGS)"
 $(package)_cmake_opts += -DCMAKE_CXX_FLAGS="$$($(package)_cppflags) $$($$($(package)_type)_CXXFLAGS) -ffile-prefix-map=$$($(package)_extract_dir)=/usr"
@@ -277,7 +280,6 @@ define $(package)_preprocess_cmds
   patch -p1 -i $($(package)_patch_dir)/cocoa_compat.patch && \
   patch -p1 -i $($(package)_patch_dir)/dont_hardcode_pwd.patch && \
   patch -p1 -i $($(package)_patch_dir)/qtbase_avoid_qmain.patch && \
-  patch -p1 -i $($(package)_patch_dir)/qtbase_platformsupport.patch && \
   patch -p1 -i $($(package)_patch_dir)/qtbase_plugins_cocoa.patch && \
   patch -p1 -i $($(package)_patch_dir)/qtbase_skip_tools.patch && \
   patch -p1 -i $($(package)_patch_dir)/rcc_hardcode_timestamp.patch && \
diff --git a/depends/packages/qt_details.mk b/depends/packages/qt_details.mk
index e49ac6a2..1808f342 100644
--- a/depends/packages/qt_details.mk
+++ b/depends/packages/qt_details.mk
@@ -1,19 +1,19 @@
-qt_details_version := 6.8.3
+qt_details_version := 6.8.4
 qt_details_download_path := https://download.qt.io/archive/qt/6.8/$(qt_details_version)/submodules
-qt_details_suffix := everywhere-src-$(qt_details_version).tar.xz
+qt_details_suffix := everywhere-opensource-src-$(qt_details_version).tar.xz
 
 qt_details_qtbase_file_name := qtbase-$(qt_details_suffix)
-qt_details_qtbase_sha256_hash := 56001b905601bb9023d399f3ba780d7fa940f3e4861e496a7c490331f49e0b80
+qt_details_qtbase_sha256_hash := 532dfbf3fa3cbc68fa37441ea9e81c5009da044eaecda78ffaeafd8bd125532f
 
 qt_details_qttranslations_file_name := qttranslations-$(qt_details_suffix)
-qt_details_qttranslations_sha256_hash := c3c61d79c3d8fe316a20b3617c64673ce5b5519b2e45535f49bee313152fa531
+qt_details_qttranslations_sha256_hash := 33b1fd1d75598cbf54da12263957f18292c9fb01e42fcc3ab9bd2f8ac79763b7
 
 qt_details_qttools_file_name := qttools-$(qt_details_suffix)
-qt_details_qttools_sha256_hash := 02a4e219248b94f1333df843d25763f35251c1074cdc4fb5bda67d340f8c8b3a
+qt_details_qttools_sha256_hash := c6030ea66d7be1ca7e3b40578beb35b0f4ff4014277d8e051d3219759f6ab399
 
 qt_details_patches_path := $(PATCHES_PATH)/qt
 
-qt_details_top_download_path := https://raw.githubusercontent.com/qt/qt5/refs/heads/$(qt_details_version)
+qt_details_top_download_path := https://raw.githubusercontent.com/qt/qt5/refs/tags/v$(qt_details_version)-lts-lgpl
 qt_details_top_cmakelists_file_name := CMakeLists.txt
 qt_details_top_cmakelists_download_file := $(qt_details_top_cmakelists_file_name)
 qt_details_top_cmakelists_sha256_hash := 54e9a4e554da37792446dda4f52bc308407b01a34bcc3afbad58e4e0f71fac9b
diff --git a/depends/patches/qt/fix-gcc16-qcompare.patch b/depends/patches/qt/fix-gcc16-qcompare.patch
index e56f610a..c2c1100a 100644
--- a/depends/patches/qt/fix-gcc16-qcompare.patch
+++ b/depends/patches/qt/fix-gcc16-qcompare.patch
@@ -105,7 +105,7 @@ index d82cf5ab4a4e..7eee69db66a3 100644
  namespace Qt {
  
  class weak_ordering;
-@@ -157,12 +183,18 @@ public:
+@@ -156,12 +182,18 @@ public:
      constexpr Q_IMPLICIT operator std::partial_ordering() const noexcept
      {
          static_assert(sizeof(*this) == sizeof(std::partial_ordering));
@@ -127,7 +127,7 @@ index d82cf5ab4a4e..7eee69db66a3 100644
          switch (m_order) {
          case qToUnderlying(O::Less):        return R::less;
          case qToUnderlying(O::Greater):     return R::greater;
-@@ -170,7 +202,6 @@ public:
+@@ -169,7 +201,6 @@ public:
          case qToUnderlying(U::Unordered):   return R::unordered;
          }
          Q_UNREACHABLE_RETURN(R::unordered);
@@ -135,7 +135,7 @@ index d82cf5ab4a4e..7eee69db66a3 100644
      }
  
      friend constexpr bool operator==(partial_ordering lhs, std::partial_ordering rhs) noexcept
-@@ -349,18 +380,18 @@ public:
+@@ -347,18 +378,18 @@ public:
      constexpr Q_IMPLICIT operator std::weak_ordering() const noexcept
      {
          static_assert(sizeof(*this) == sizeof(std::weak_ordering));
@@ -158,7 +158,7 @@ index d82cf5ab4a4e..7eee69db66a3 100644
      }
  
      friend constexpr bool operator==(weak_ordering lhs, std::weak_ordering rhs) noexcept
-@@ -547,18 +578,18 @@ public:
+@@ -542,18 +573,18 @@ public:
      constexpr Q_IMPLICIT operator std::strong_ordering() const noexcept
      {
          static_assert(sizeof(*this) == sizeof(std::strong_ordering));
@@ -181,7 +181,7 @@ index d82cf5ab4a4e..7eee69db66a3 100644
      }
  
      friend constexpr bool operator==(strong_ordering lhs, std::strong_ordering rhs) noexcept
-@@ -625,6 +656,8 @@ inline constexpr strong_ordering strong_ordering::greater(QtPrivate::Ordering::G
+@@ -620,6 +651,8 @@ inline constexpr strong_ordering strong_ordering::greater(QtPrivate::Ordering::G
  
  } // namespace Qt
  
diff --git a/depends/patches/qt/fix-gcc16-sfinae-qanystringview.patch b/depends/patches/qt/fix-gcc16-sfinae-qanystringview.patch
index 11c27949..42f13ebb 100644
--- a/depends/patches/qt/fix-gcc16-sfinae-qanystringview.patch
+++ b/depends/patches/qt/fix-gcc16-sfinae-qanystringview.patch
@@ -19,7 +19,7 @@ diff --git a/qtbase/src/corelib/text/qanystringview.cpp b/qtbase/src/corelib/tex
 index 7bf8a3fa1fd..3c993ff1da0 100644
 --- a/qtbase/src/corelib/text/qanystringview.cpp
 +++ b/qtbase/src/corelib/text/qanystringview.cpp
-@@ -243,6 +243,10 @@ QT_BEGIN_NAMESPACE
+@@ -355,6 +355,10 @@ QT_BEGIN_NAMESPACE
      \sa isNull(), isEmpty()
  */
  
diff --git a/depends/patches/qt/fix-gcc16-sfinae-qchar.patch b/depends/patches/qt/fix-gcc16-sfinae-qchar.patch
index 888e128c..e8afea81 100644
--- a/depends/patches/qt/fix-gcc16-sfinae-qchar.patch
+++ b/depends/patches/qt/fix-gcc16-sfinae-qchar.patch
@@ -37,7 +37,7 @@ diff --git a/qtbase/src/corelib/kernel/qmetatype.cpp b/qtbase/src/corelib/kernel
 index e70583404a46..54a0fe671fe0 100644
 --- a/qtbase/src/corelib/kernel/qmetatype.cpp
 +++ b/qtbase/src/corelib/kernel/qmetatype.cpp
-@@ -1212,7 +1212,7 @@ QT_WARNING_DISABLE_CLANG("-Wtautological-compare")
+@@ -1230,7 +1230,7 @@ QT_WARNING_DISABLE_CLANG("-Wtautological-compare")
              return true;
          );
          QMETATYPE_CONVERTER(QString, Char32,
diff --git a/depends/patches/qt/qtbase_platformsupport.patch b/depends/patches/qt/qtbase_platformsupport.patch
deleted file mode 100644
index 45ccaea5..00000000
--- a/depends/patches/qt/qtbase_platformsupport.patch
+++ /dev/null
@@ -1,34 +0,0 @@
-CMake: Prevent creation of empty InputSupportPrivate module
-
-The combination of
-    -no-feature-evdev
-    -no-feature-tslib
-    -no-feature-libinput
-led to the creation of the InputSupportPrivate module without source
-files.
-
-This triggered CMake upstream issue 23464 when using CMake < 3.25.
-
-Fix this by adjusting the inexact condition that decides whether to
-build InputSupportPrivate.
-
-
-See: https://codereview.qt-project.org/c/qt/qtbase/+/633612
-
-
---- a/qtbase/src/platformsupport/CMakeLists.txt
-+++ b/qtbase/src/platformsupport/CMakeLists.txt
-@@ -3,7 +3,12 @@
- 
- add_subdirectory(devicediscovery)
- add_subdirectory(fbconvenience)
--if(QT_FEATURE_evdev OR QT_FEATURE_integrityhid OR QT_FEATURE_libinput OR QT_FEATURE_tslib OR QT_FEATURE_xkbcommon)
-+if(QT_FEATURE_evdev
-+    OR QT_FEATURE_vxworksevdev
-+    OR QT_FEATURE_integrityhid
-+    OR QT_FEATURE_libinput
-+    OR QT_FEATURE_tslib
-+    OR (QT_FEATURE_libinput AND QT_FEATURE_xkbcommon))
-     add_subdirectory(input)
- endif()
- if(QT_FEATURE_kms)
diff --git a/depends/patches/qt/qtbase_plugins_cocoa.patch b/depends/patches/qt/qtbase_plugins_cocoa.patch
index 2b0cc509..1f055353 100644
--- a/depends/patches/qt/qtbase_plugins_cocoa.patch
+++ b/depends/patches/qt/qtbase_plugins_cocoa.patch
@@ -8,7 +8,7 @@ See: https://codereview.qt-project.org/c/qt/qtbase/+/634002
 
 --- a/qtbase/src/plugins/platforms/cocoa/CMakeLists.txt
 +++ b/qtbase/src/plugins/platforms/cocoa/CMakeLists.txt
-@@ -107,3 +107,10 @@ qt_internal_extend_target(QCocoaIntegrationPlugin CONDITION QT_FEATURE_sessionma
+@@ -108,3 +108,10 @@ qt_internal_extend_target(QCocoaIntegrationPlugin CONDITION QT_FEATURE_sessionma
      SOURCES
          qcocoasessionmanager.cpp qcocoasessionmanager.h
  )
diff --git a/depends/patches/qt/qtbase_skip_tools.patch b/depends/patches/qt/qtbase_skip_tools.patch
index eef65425..77cb3e3f 100644
--- a/depends/patches/qt/qtbase_skip_tools.patch
+++ b/depends/patches/qt/qtbase_skip_tools.patch
@@ -9,7 +9,7 @@ Skip building/installing unneeded tools:
 
 --- a/qtbase/cmake/QtBaseGlobalTargets.cmake
 +++ b/qtbase/cmake/QtBaseGlobalTargets.cmake
-@@ -118,9 +118,6 @@ qt_generate_global_module_pri_file()
+@@ -128,9 +128,6 @@ qt_generate_global_module_pri_file()
  qt_generate_global_device_pri_file()
  qt_generate_qmake_and_qtpaths_wrapper_for_target()
  
@@ -19,7 +19,7 @@ Skip building/installing unneeded tools:
  
  qt_internal_add_platform_internal_target(GlobalConfigPrivate)
  target_link_libraries(GlobalConfigPrivate INTERFACE GlobalConfig)
-@@ -390,12 +387,3 @@ elseif(WASM)
+@@ -400,12 +397,3 @@ elseif(WASM)
      qt_install(PROGRAMS "${QT_BUILD_DIR}/${INSTALL_LIBEXECDIR}/qt-wasmtestrunner.py"
          DESTINATION "${INSTALL_LIBEXECDIR}")
  endif()