Fix include dirs

CMakeLists.txt

@@ -37,9 +37,9 @@ else()
   )
   target_link_libraries(asyncmsg PRIVATE Boost::system)
   target_include_directories(asyncmsg PUBLIC
-    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/asyncmsg>
-    $<INSTALL_INTERFACE:asyncmsg>
-)
+    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
+    $<INSTALL_INTERFACE:>
+  )
 
   # Generate and install the package configuration file
   include(CMakePackageConfigHelpers)