new fixes 2

core/CMakeLists.txt

@@ -10,6 +10,10 @@ else()
 endif (MSVC)
 add_definitions(-DSDRPP_IS_CORE)
 
+if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
+    include_directories("/usr/include")
+endif()
+
 # Set the install prefix
 add_compile_definitions(INSTALL_PREFIX="${CMAKE_INSTALL_PREFIX}")