option(LIBIPC_BUILD_SHARED_LIBS 'Build shared libraries (DLLs).' OFF)

Author: mutouyun

CMakeLists.txt

@@ -7,7 +7,7 @@ option(LIBIPC_BUILD_DEMOS "Build all of libipc's own demos." OFF)
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -DNDEBUG")
 if(NOT MSVC)
-  set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O2")
+ set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O2")
 endif()
 
 include_directories(${CMAKE_SOURCE_DIR}/include)
@@ -19,14 +19,14 @@ set(LIBIPC_PROJECT_DIR ${PROJECT_SOURCE_DIR})
 add_subdirectory(src)
 
 if (LIBIPC_BUILD_TESTS)
-  set(GOOGLETEST_VERSION 1.10.0)
-  add_subdirectory(3rdparty/gtest)
-  add_subdirectory(test)
+ set(GOOGLETEST_VERSION 1.10.0)
+ add_subdirectory(3rdparty/gtest)
+ add_subdirectory(test)
 endif()
 
 if (LIBIPC_BUILD_DEMOS)
-  add_subdirectory(demo/chat)
-  add_subdirectory(demo/msg_que)
+ add_subdirectory(demo/chat)
+ add_subdirectory(demo/msg_que)
 endif()
 
 install(

include/libipc/export.h

@@ -44,9 +44,11 @@
 */
 
 #ifndef IPC_EXPORT
-#if defined(__IPC_LIBRARY__)
+#if defined(LIBIPC_LIBRARY_SHARED_BUILDING__)
 # define IPC_EXPORT IPC_DECL_EXPORT
-#else
+#elif defined(LIBIPC_LIBRARY_SHARED_USING__)
 # define IPC_EXPORT IPC_DECL_IMPORT
+#else
+# define IPC_EXPORT
 #endif
 #endif /*IPC_EXPORT*/

src/CMakeLists.txt

@@ -1,6 +1,6 @@
 project(ipc)
 
-add_compile_options(-D__IPC_LIBRARY__)
+option(LIBIPC_BUILD_SHARED_LIBS "Build shared libraries (DLLs)." OFF)
 
 if(NOT MSVC)
  add_compile_options(-fPIC)
@@ -26,11 +26,21 @@ file(GLOB HEAD_FILES
  ${LIBIPC_PROJECT_DIR}/src/libipc/platform/*.h
  ${LIBIPC_PROJECT_DIR}/src/libipc/utility/*.h)
 
-add_library(${PROJECT_NAME} SHARED ${SRC_FILES} ${HEAD_FILES})
+if (LIBIPC_BUILD_SHARED_LIBS)
+ add_library(${PROJECT_NAME} SHARED ${SRC_FILES} ${HEAD_FILES})
+ target_compile_definitions(${PROJECT_NAME}
+ INTERFACE
+ LIBIPC_LIBRARY_SHARED_USING__
+ PRIVATE
+ LIBIPC_LIBRARY_SHARED_BUILDING__)
+else()
+ add_library(${PROJECT_NAME} STATIC ${SRC_FILES} ${HEAD_FILES})
+endif()
+
 if(NOT MSVC)
  target_link_libraries(${PROJECT_NAME} PUBLIC
-  pthread
-  $<$<NOT:$<STREQUAL:${CMAKE_SYSTEM_NAME},Windows>>:rt>)
+ pthread
+ $<$<NOT:$<STREQUAL:${CMAKE_SYSTEM_NAME},Windows>>:rt>)
 endif()
 
 install(