explicit link against the library target

CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required (VERSION 2.8.11)
+cmake_minimum_required (VERSION 3.2)
 project (libADLMIDI)
 
 #===========================================================================================
@@ -266,6 +266,13 @@ if(NOT libADLMIDI_STATIC AND NOT libADLMIDI_SHARED)
 You must enable at least one of them!")
 endif()
 
+add_library(ADLMIDI INTERFACE)
+if(libADLMIDI_SHARED)
+  target_link_libraries(ADLMIDI INTERFACE ADLMIDI_shared)
+else()
+  target_link_libraries(ADLMIDI INTERFACE ADLMIDI_static)
+endif()
+
 if(WITH_MIDIPLAY)
     if(NOT MSDOS AND NOT DJGPP AND NOT MIDIPLAY_WAVE_ONLY)
         find_library(SDL2_LIBRARY SDL2 REQUIRED)