diff --git a/CMakeLists.txt b/CMakeLists.txt
index ee08591..c8c6b61 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -185,12 +185,14 @@ if(NOT USE_SYSTEM_MARISA)
   message(STATUS "Use bundled marisa library.")
   add_subdirectory(deps/marisa-0.2.6)
 else()
-  find_library(LIBMARISA NAMES marisa)
-  if (LIBMARISA)
-    message(STATUS "libmarisa found: ${LIBMARISA}")
-  else()
-    message(FATAL_ERROR "libmarisa not found.")
-  endif()
+  find_package(PkgConfig REQUIRED)
+  pkg_check_modules(marisa REQUIRED IMPORTED_TARGET marisa)
+  # find_library(LIBMARISA NAMES marisa)
+  # if (LIBMARISA)
+    # message(STATUS "libmarisa found: ${LIBMARISA}")
+  # else()
+    # message(FATAL_ERROR "libmarisa not found.")
+  # endif()
 endif()
 
 ######## Subdirectories
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index c0a0b10..91b4037 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -114,7 +114,7 @@ configure_file(
 add_library(libopencc ${LIBOPENCC_SOURCES} ${LIBOPENCC_HEADERS})
 set_target_properties(libopencc PROPERTIES POSITION_INDEPENDENT_CODE ON)
 source_group(libopencc FILES ${LIBOPENCC_SOURCES} ${LIBOPENCC_HEADERS})
-target_link_libraries(libopencc marisa)
+target_link_libraries(libopencc PkgConfig::marisa)
 
 GENERATE_EXPORT_HEADER(
   libopencc
@@ -137,6 +137,21 @@ set_target_properties(
       ${OPENCC_VERSION_MAJOR}.${OPENCC_VERSION_MINOR}
 )
 
+if(USE_SYSTEM_RAPIDJSON)
+  find_package(RapidJSON CONFIG REQUIRED)
+  target_link_libraries(libopencc rapidjson)
+endif()
+
+if(USE_SYSTEM_TCLAP)
+  find_path(TCLAP_INCLUDE_DIRS "tclap/Arg.h")
+  target_include_directories(libopencc PUBLIC ${TCLAP_INCLUDE_DIRS})
+endif()
+
+if(USE_SYSTEM_DARTS)
+  find_path(DARTS_INCLUDE_DIRS "darts.h")
+  target_include_directories(libopencc PUBLIC ${DARTS_INCLUDE_DIRS})
+endif()
+
 # Installation
 
 install(