Includeded dependencies as system headers.

formats/lv2/CMakeLists.txt

@@ -9,7 +9,7 @@ if(XPLUG_LV2_SUPPORT)
     add_library(lv2  "lv2.cpp" "lv2_ttl_generation.cpp")
     set_target_properties(lv2 PROPERTIES POSITION_INDEPENDENT_CODE  True)
     target_link_libraries(lv2 XPlug)
-    target_include_directories(lv2 PRIVATE ${LV2_INCLUDE_DIRS}  ${CMAKE_CURRENT_LIST_DIR}/../../src)
+    target_include_directories(lv2 SYSTEM PRIVATE ${LV2_INCLUDE_DIRS})
     target_compile_features(lv2 PUBLIC cxx_std_11)
     EXPORT_SYMBOLS(lv2 FUNCTION_NAMES lv2_descriptor lv2_lib_descriptor getTTLFromPlugin getManifestFromMultpleInfos getPluginInfos)
     add_executable(TTLGenerator  "TtlGenerator.cpp")

formats/lv2/tests/CMakeLists.txt

 if(XPLUG_BUILD_TESTS)
-   target_include_directories(XValidate PUBLIC ${LV2_INCLUDE_DIRS} ${PROJECT_SOURCE_DIR}/deps/)
+   target_include_directories(XValidate SYSTEM PUBLIC ${LV2_INCLUDE_DIRS} ${PROJECT_SOURCE_DIR}/deps/)
    target_sources(XValidate PUBLIC  
    ${CMAKE_CURRENT_LIST_DIR}/LV2TestSuite.cpp 
    ${PROJECT_SOURCE_DIR}/deps/lilv.c
    )
-   target_include_directories(regression_tests PUBLIC ${LV2_INCLUDE_DIRS} ${PROJECT_SOURCE_DIR}/deps/)
+   target_include_directories(regression_tests SYSTEM  PUBLIC ${LV2_INCLUDE_DIRS} ${PROJECT_SOURCE_DIR}/deps/)
    target_sources(regression_tests PUBLIC 
    ${CMAKE_CURRENT_LIST_DIR}/LV2RegressionTest.cpp
    ${PROJECT_SOURCE_DIR}/deps/lilv.c)

formats/vst2/CMakeLists.txt

@@ -6,10 +6,10 @@ if(XPLUG_VST2_SUPPORT)
     add_library(vst2 "vestige.cpp" "vst_def.hpp")
     target_compile_features(vst2 PUBLIC cxx_std_11)
     if(VST2_FOUND)
-        target_include_directories(vst2 PRIVATE ${VST2_INCLUDE_DIRS})
+        target_include_directories(vst2 SYSTEM PRIVATE ${VST2_INCLUDE_DIRS})
         target_compile_definitions(vst2 PRIVATE USE_VST2_SDK)
     endif(VST2_FOUND)
-    target_include_directories(vst2 PRIVATE ${CMAKE_CURRENT_LIST_DIR}/../../src ${PROJECT_SOURCE_DIR}/deps/)
+    target_include_directories(vst2 SYSTEM PRIVATE ${PROJECT_SOURCE_DIR}/deps/)
     set_target_properties(vst2 PROPERTIES POSITION_INDEPENDENT_CODE  True)
     target_link_libraries(vst2 XPlug)
     EXPORT_SYMBOLS(vst2 FUNCTION_NAMES VSTPluginMain)

formats/vst2/tests/CMakeLists.txt

 if(XPLUG_BUILD_TESTS)
-    target_include_directories(XValidate PUBLIC ${CMAKE_SOURCE_DIR}/formats/vst2)
+    if(VST2_FOUND)
+        target_include_directories(XValidate SYSTEM PRIVATE ${VST2_INCLUDE_DIRS})
+        target_compile_definitions(XValidate PRIVATE USE_VST2_SDK)
+        target_include_directories(regression_tests SYSTEM PRIVATE ${VST2_INCLUDE_DIRS})
+        target_compile_definitions(regression_tests PRIVATE USE_VST2_SDK)
+    endif(VST2_FOUND)
     target_sources(XValidate PUBLIC  ${CMAKE_CURRENT_LIST_DIR}/VST2TestSuite.cpp)
-    target_include_directories(regression_tests PUBLIC ${CMAKE_CURRENT_LIST_DIR}/..)
+    target_include_directories(XValidate SYSTEM PRIVATE ${PROJECT_SOURCE_DIR}/deps/ ${CMAKE_CURRENT_LIST_DIR}/..)
     target_sources(regression_tests PUBLIC  ${CMAKE_CURRENT_LIST_DIR}/VST2RegressionTest.cpp)
+    target_include_directories(regression_tests SYSTEM PRIVATE ${PROJECT_SOURCE_DIR}/deps/ ${CMAKE_CURRENT_LIST_DIR}/..)
 endif(XPLUG_BUILD_TESTS)
\ No newline at end of file

formats/vst3/CMakeLists.txt

@@ -10,7 +10,7 @@ if(XPLUG_VST3_SUPPORT)
 	add_library(vst3 vst3.cpp Component.cpp VST3AudioProcessorImpl.cpp VST3EditControllerImpl.cpp)
 	set_target_properties(vst3 PROPERTIES POSITION_INDEPENDENT_CODE  True)
 	target_link_libraries(vst3 XPlug ${VST3_LIBRARIES})
-	target_include_directories(vst3 PRIVATE ${VST3_INCLUDE_DIRS} ${CMAKE_CURRENT_LIST_DIR}/../../src)
+	target_include_directories(vst3 SYSTEM PRIVATE ${VST3_INCLUDE_DIRS} )
 
 	target_compile_features(vst3 PUBLIC cxx_std_11)
 	if(WIN32)

formats/vst3/tests/CMakeLists.txt

 if(XPLUG_BUILD_TESTS)
-    target_include_directories(XValidate PUBLIC ${VST3_INCLUDE_DIRS})
+    target_include_directories(XValidate SYSTEM  PUBLIC ${VST3_INCLUDE_DIRS})
     target_sources(XValidate PUBLIC  ${CMAKE_CURRENT_LIST_DIR}/VST3TestSuite.cpp)
     cmake_policy(SET CMP0079 NEW)
     target_link_libraries(XValidate PUBLIC ${VST3_LIBRARIES})
 
 
-    target_include_directories(regression_tests PUBLIC ${VST3_INCLUDE_DIRS})
+    target_include_directories(regression_tests SYSTEM  PUBLIC ${VST3_INCLUDE_DIRS})
     target_sources(regression_tests PUBLIC  ${CMAKE_CURRENT_LIST_DIR}/VST3RegressionTest.cpp)
     #cmake_policy(SET CMP0079 NEW)
     target_link_libraries(regression_tests PUBLIC ${VST3_LIBRARIES})