feat: 新增GITEA工作流，新建工具链文件

CMakeLists.txt

@@ -3,17 +3,25 @@ project(DataRouter C)
 
 set(CMAKE_C_STANDARD 11)
 
+# ======== 静态库 ========
 add_library(DataRouter STATIC datarouter.c)
-
-# 将库源码目录暴露给使用者，使其可通过 #include <datarouter_config.h>
-# 从自身 include path 覆盖默认配置。如果使用者未提供，则回退到库自带版本。
 target_include_directories(DataRouter PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
 
+# ======== 共享库（可选，通过 BUILD_SHARED 控制） ========
+option(BUILD_SHARED "Build shared library" ON)
+if(BUILD_SHARED)
+    add_library(DataRouter_shared SHARED datarouter.c)
+    target_include_directories(DataRouter_shared PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
+    set_target_properties(DataRouter_shared PROPERTIES OUTPUT_NAME DataRouter)
+endif()
+
+# ======== 示例程序 ========
 if(BUILD_EXAMPLES OR NOT DEFINED BUILD_EXAMPLES)
     add_executable(example example.c)
     target_link_libraries(example DataRouter)
 endif()
 
+# ======== 测试 ========
 if(BUILD_TESTING OR NOT DEFINED BUILD_TESTING)
     enable_testing()
     add_executable(test_datarouter tests/test_datarouter.c)