src/CMakeLists.txt Add include dir only for using the target, not building

Signed-off-by: Marcel Marock <[email protected]>

Author: mmarock

src/CMakeLists.txt

@@ -124,7 +124,6 @@ endif()
 target_include_directories(oqs
                            PUBLIC
                            "$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>"
-                           "$<BUILD_INTERFACE:${PROJECT_BINARY_DIR}/include>"
                            "$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>"
 )
 
@@ -147,6 +146,10 @@ set_target_properties(oqs
     # For Windows DLLs
     RUNTIME_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR}/bin")
 
+set_property(TARGET oqs
+    APPEND PROPERTY
+    INTERFACE_INCLUDE_DIRECTORIES "$<BUILD_INTERFACE:${PROJECT_BINARY_DIR}/include>")
+
 set_target_properties(oqs-internal
     PROPERTIES
     C_VISIBILITY_PRESET default