Correct include directories for oai_usrpdevif

cmake_targets/CMakeLists.txt

@@ -50,7 +50,6 @@ include_directories("/usr/local/include/")
 #use native cmake method as this package is not in pkg-config
 if (${RF_BOARD} STREQUAL "OAI_USRP")
   find_package(Boost REQUIRED)
-  include_directories(${LIBBOOST_INCLUDE_DIR})
 
 elseif (${RF_BOARD} STREQUAL "OAI_IRIS")
     include_directories("${OPENAIR_TARGETS}/ARCH/IRIS/USERSPACE/LIB/")
@@ -837,11 +836,14 @@ set (SHLIB_LOADER_SOURCES
 # include RF devices / transport protocols library modules
 ######################################################################
 
-include_directories("${OPENAIR_TARGETS}/ARCH/USRP/USERSPACE/LIB/")
 set(HWLIB_USRP_SOURCE
   ${OPENAIR_TARGETS}/ARCH/USRP/USERSPACE/LIB/usrp_lib.cpp
   )
 add_library(oai_usrpdevif MODULE ${HWLIB_USRP_SOURCE} )
+target_include_directories(oai_usrpdevif PRIVATE
+  "${OPENAIR_TARGETS}/ARCH/USRP/USERSPACE/LIB/"
+  ${Boost_INCLUDE_DIR}
+)
 target_link_libraries(oai_usrpdevif uhd)
 
 include_directories("${OPENAIR_TARGETS}/ARCH/BLADERF/USERSPACE/LIB/")