diff --git a/lib/CMakeLists.txt b/lib/CMakeLists.txt
index db5f7da..66f6d9f 100644
--- a/lib/CMakeLists.txt
+++ b/lib/CMakeLists.txt
@@ -1,10 +1,17 @@
 # 设置编译选项
-set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O2")
-if(WIN32)
-	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O2")
-else()
-	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} --std=c++11 -O2")
+if(${CMAKE_HOST_SYSTEM_NAME} STREQUAL "Windows")
+	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O2")
 endif()
+
+if(${CMAKE_HOST_SYSTEM_NAME} STREQUAL "Linux")
+	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -lm -O2")
+endif()
+
+if(${CMAKE_HOST_SYSTEM_NAME} STREQUAL "Darwin")
+	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O2")
+endif()
+
+
 # 设置库文件的输出地址
 set(LIBRARY_OUTPUT_PATH ${PROJECT_BINARY_DIR}/lib)
 
@@ -25,6 +32,12 @@ set_target_properties(tess_static PROPERTIES CLEAN_DIRECT_OUTPUT 1)
 # 设置动态库的版本号
 set_target_properties(tess PROPERTIES VERSION 1.6 SOVERSION 1.6)
 
+# 链接动态库
+if(${CMAKE_HOST_SYSTEM_NAME} STREQUAL "Linux")
+	target_link_libraries(tess PUBLIC m)
+	target_link_libraries(tess_static m.a)
+endif()
+
 # 库的安装命令
 if(WIN32)
 	install(TARGETS tess DESTINATION lib)
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 89757e8..9dc8644 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -1,9 +1,14 @@
 # 设置编译选项
-set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O2")
-if(WIN32)
-	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O2")
-else()
-	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} --std=c++11 -O2")
+if(${CMAKE_HOST_SYSTEM_NAME} STREQUAL "Windows")
+	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O2")
+endif()
+
+if(${CMAKE_HOST_SYSTEM_NAME} STREQUAL "Linux")
+	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -lm -O2")
+endif()
+
+if(${CMAKE_HOST_SYSTEM_NAME} STREQUAL "Darwin")
+	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O2")
 endif()
 
 # 设置可执行文件的输出地址
diff --git a/toolkits/CMakeLists.txt b/toolkits/CMakeLists.txt
index 871e31d..fd80b40 100644
--- a/toolkits/CMakeLists.txt
+++ b/toolkits/CMakeLists.txt
@@ -1,9 +1,14 @@
 # 设置编译选项
-set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O2")
-if(WIN32)
-	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O2")
-else()
-	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} --std=c++11 -O2")
+if(${CMAKE_HOST_SYSTEM_NAME} STREQUAL "Windows")
+	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O2")
+endif()
+
+if(${CMAKE_HOST_SYSTEM_NAME} STREQUAL "Linux")
+	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -lm -O2")
+endif()
+
+if(${CMAKE_HOST_SYSTEM_NAME} STREQUAL "Darwin")
+	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O2")
 endif()
 
 # 设置可执行文件的输出地址