diff --git a/CMakeLists.txt b/CMakeLists.txt
index 62e448e..e5d6913 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -62,17 +62,15 @@ ENDIF(BUILD_STATIC_LIB)
 
 set_target_properties(${PROJECT_NAME} PROPERTIES PUBLIC_HEADER ${SOURCE_HEADS})
 
-# PLATFORM-SPECIFIC SETTING
-if (UNIX)
-    find_library(M_LIB m)
-    set(CMAKE_C_FLAGS "-lm")
-else ()
-    set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)
-endif ()
-
 # ADD DEFAULT COMPILER FLAGS
 include(CompilerFlags)
 
+find_package(OpenMP REQUIRED)
+if (OPENMP_FOUND)
+    set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${OpenMP_C_FLAGS}") 
+    set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${OpenMP_EXE_LINKER_FLAGS}")
+endif()
+
 # Link include file
 target_include_directories( ${PROJECT_NAME} PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}/include")
 
diff --git a/cmake/CompilerFlags.cmake b/cmake/CompilerFlags.cmake
index 86a7fd1..29cf75b 100644
--- a/cmake/CompilerFlags.cmake
+++ b/cmake/CompilerFlags.cmake
@@ -32,7 +32,7 @@
 # PLATFORM-SPECIFIC SETTING
 if (UNIX)
     find_library(M_LIB m)
-    set(CMAKE_C_FLAGS "-lm")
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -lm")
 else ()
     set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)
 endif ()