https://github.com/intel/media-driver/pull/1785
Index: media_driver/cmake/linux/media_compile_flags_linux.cmake
--- media_driver/cmake/linux/media_compile_flags_linux.cmake.orig
+++ media_driver/cmake/linux/media_compile_flags_linux.cmake
@@ -92,7 +92,6 @@ endif()
 if(NOT ${PLATFORM} STREQUAL "android")
     set(MEDIA_COMPILER_FLAGS_COMMON
         ${MEDIA_COMPILER_FLAGS_COMMON}
-        -D__linux__
             -fno-tree-pre
         -fPIC
             -Wl,--no-as-needed
