#illumos ld does not support gc-sections and version-script.
--- a/CMakeLists.txt	Sat Oct 26 16:42:34 2024
+++ b/CMakeLists.txt	Sun Apr 27 03:45:46 2025
@@ -191,8 +191,8 @@
 if(BUILD_SHARED_LIBS)
     if(CMAKE_C_COMPILER_ID MATCHES GNU|^Clang)
         target_link_options(libchewing
-            PRIVATE LINKER:-version-script,${PROJECT_SOURCE_DIR}/capi/src/symbols-elf.map
-            PRIVATE LINKER:--gc-sections
+            PRIVATE LINKER:-M,${PROJECT_SOURCE_DIR}/capi/src/symbols-elf.map
+            PRIVATE LINKER:-fvisibility=hidden
             PRIVATE LINKER:-u,chewing_new
             PRIVATE LINKER:-u,chewing_version
         )