diff --git a/external/fcitx5_qt/CMakeLists.txt b/external/fcitx5_qt/CMakeLists.txt
index 0d76b46..bfca166 100644
--- a/external/fcitx5_qt/CMakeLists.txt
+++ b/external/fcitx5_qt/CMakeLists.txt
@@ -22,11 +22,6 @@ set(FCITX5_QT_EXTRA_PLUGIN_NAME "")
 
 configure_file("${fcitx5_qt_src}/fcitx5.json.in" "${CMAKE_CURRENT_BINARY_DIR}/fcitx5.json")
 
-nice_target_sources(external_fcitx5_qt ${CMAKE_CURRENT_SOURCE_DIR}
-PRIVATE
-    init.cpp
-)
-
 nice_target_sources(external_fcitx5_qt ${fcitx5_qt_src}
 PRIVATE
     qfcitxplatforminputcontext.cpp
@@ -84,3 +79,23 @@ else()
         xkbcommon
     )
 endif()
+
+add_library(external_fcitx5_qt_init OBJECT)
+add_library(desktop-app::external_fcitx5_qt_init ALIAS external_fcitx5_qt_init)
+init_target(external_fcitx5_qt_init "(external)")
+
+nice_target_sources(external_fcitx5_qt_init ${CMAKE_CURRENT_SOURCE_DIR}
+PRIVATE
+    init.cpp
+)
+
+target_link_libraries(external_fcitx5_qt_init
+PRIVATE
+    desktop-app::external_qt
+)
+
+target_link_libraries(external_fcitx5_qt
+INTERFACE
+    external_fcitx5_qt_init
+    $<TARGET_OBJECTS:external_fcitx5_qt_init>
+)
diff --git a/external/fcitx_qt5/CMakeLists.txt b/external/fcitx_qt5/CMakeLists.txt
index 76337c8..8945c84 100644
--- a/external/fcitx_qt5/CMakeLists.txt
+++ b/external/fcitx_qt5/CMakeLists.txt
@@ -19,11 +19,6 @@ set(fcitx_qt5_src ${fcitx_qt5_loc}/qt${QT_VERSION_MAJOR}/platforminputcontext)
 
 set_target_properties(external_fcitx_qt5 PROPERTIES AUTOMOC ON)
 
-nice_target_sources(external_fcitx_qt5 ${CMAKE_CURRENT_SOURCE_DIR}
-PRIVATE
-    init.cpp
-)
-
 nice_target_sources(external_fcitx_qt5 ${fcitx_qt5_src}
 PRIVATE
     fcitxinputcontextproxy.cpp
@@ -80,3 +75,23 @@ else()
         xkbcommon
     )
 endif()
+
+add_library(external_fcitx_qt5_init OBJECT)
+add_library(desktop-app::external_fcitx_qt5_init ALIAS external_fcitx_qt5_init)
+init_target(external_fcitx_qt5_init "(external)")
+
+nice_target_sources(external_fcitx_qt5_init ${CMAKE_CURRENT_SOURCE_DIR}
+PRIVATE
+    init.cpp
+)
+
+target_link_libraries(external_fcitx_qt5_init
+PRIVATE
+    desktop-app::external_qt
+)
+
+target_link_libraries(external_fcitx_qt5
+INTERFACE
+    external_fcitx_qt5_init
+    $<TARGET_OBJECTS:external_fcitx_qt5_init>
+)
diff --git a/external/hime_qt/CMakeLists.txt b/external/hime_qt/CMakeLists.txt
index 562f0d7..6f8d744 100644
--- a/external/hime_qt/CMakeLists.txt
+++ b/external/hime_qt/CMakeLists.txt
@@ -19,11 +19,6 @@ set(hime_qt_src ${hime_loc}/src/qt5-im)
 
 set_target_properties(external_hime_qt PROPERTIES AUTOMOC ON)
 
-nice_target_sources(external_hime_qt ${CMAKE_CURRENT_SOURCE_DIR}
-PRIVATE
-    init.cpp
-)
-
 nice_target_sources(external_hime_qt ${hime_qt_src}
 PRIVATE
     hime-imcontext-qt.cpp
@@ -48,3 +43,23 @@ PRIVATE
     desktop-app::external_hime_im_client
     desktop-app::external_qt
 )
+
+add_library(external_hime_qt_init OBJECT)
+add_library(desktop-app::external_hime_qt_init ALIAS external_hime_qt_init)
+init_target(external_hime_qt_init "(external)")
+
+nice_target_sources(external_hime_qt_init ${CMAKE_CURRENT_SOURCE_DIR}
+PRIVATE
+    init.cpp
+)
+
+target_link_libraries(external_hime_qt_init
+PRIVATE
+    desktop-app::external_qt
+)
+
+target_link_libraries(external_hime_qt
+INTERFACE
+    external_hime_qt_init
+    $<TARGET_OBJECTS:external_hime_qt_init>
+)
diff --git a/external/kimageformats/CMakeLists.txt b/external/kimageformats/CMakeLists.txt
index 121eed5..d501ac5 100644
--- a/external/kimageformats/CMakeLists.txt
+++ b/external/kimageformats/CMakeLists.txt
@@ -30,10 +30,6 @@ DEPENDS
     ${kimageformats_src}/jxl.json
 )
 
-nice_target_sources(external_kimageformats ${CMAKE_CURRENT_SOURCE_DIR}
-PRIVATE
-    init.cpp
-)
 nice_target_sources(external_kimageformats ${kimageformats_src}
 PRIVATE
     avif.cpp
@@ -109,3 +105,23 @@ else()
         lcms2
     )
 endif()
+
+add_library(external_kimageformats_init OBJECT)
+add_library(desktop-app::external_kimageformats_init ALIAS external_kimageformats_init)
+init_target(external_kimageformats_init "(external)")
+
+nice_target_sources(external_kimageformats_init ${CMAKE_CURRENT_SOURCE_DIR}
+PRIVATE
+    init.cpp
+)
+
+target_link_libraries(external_kimageformats_init
+PRIVATE
+    desktop-app::external_qt
+)
+
+target_link_libraries(external_kimageformats
+INTERFACE
+    external_kimageformats_init
+    $<TARGET_OBJECTS:external_kimageformats_init>
+)
diff --git a/external/nimf_qt5/CMakeLists.txt b/external/nimf_qt5/CMakeLists.txt
index 53b0803..d4b0524 100644
--- a/external/nimf_qt5/CMakeLists.txt
+++ b/external/nimf_qt5/CMakeLists.txt
@@ -20,11 +20,6 @@ set(nimf_qt5_src ${nimf_loc}/modules/clients/qt5)
 
 set_target_properties(external_nimf_qt5 PROPERTIES AUTOMOC ON)
 
-nice_target_sources(external_nimf_qt5 ${CMAKE_CURRENT_SOURCE_DIR}
-PRIVATE
-    init.cpp
-)
-
 nice_target_sources(external_nimf_qt5 ${nimf_qt5_src}
 PRIVATE
     im-nimf-qt5.cpp
@@ -53,3 +48,23 @@ target_link_libraries(external_nimf_qt5
 PRIVATE
     desktop-app::external_qt
 )
+
+add_library(external_nimf_qt5_init OBJECT)
+add_library(desktop-app::external_nimf_qt5_init ALIAS external_nimf_qt5_init)
+init_target(external_nimf_qt5_init "(external)")
+
+nice_target_sources(external_nimf_qt5_init ${CMAKE_CURRENT_SOURCE_DIR}
+PRIVATE
+    init.cpp
+)
+
+target_link_libraries(external_nimf_qt5_init
+PRIVATE
+    desktop-app::external_qt
+)
+
+target_link_libraries(external_nimf_qt5
+INTERFACE
+    external_nimf_qt5_init
+    $<TARGET_OBJECTS:external_nimf_qt5_init>
+)