尝试修复linux编译失败的问题

api/CMakeLists.txt

@@ -2,6 +2,10 @@
 file(GLOB api_src_list include/*.h source/*.cpp source/*.h source/*.c)
 add_library(api SHARED ${api_src_list})
 
+if (CMAKE_SYSTEM_NAME MATCHES "Linux")
+    add_compile_options(-fPIC)
+endif()
+
 if(WIN32)
     add_definitions(-DMediaKitApi_EXPORTS)
 endif()