VxWork Lib blocks cannot be used with IDE Link component?

It is about Simulink code generation for VxWorks on x86/Pentium target.

I used "Async Interrupt" block and "Task Sync" block with system target file "idelink_ert.tlc"

In Target preference, Operating system: VxWorks IDE/Tool Chain: Wind River Diab/GCC

When I try to generate code I got error, "Error: Simulink Coder Error: VxWork Lib blocks cannot be used with IDE Link component of the Embedded Coder product."

Question: 1. Is there any way to fix it? 2. If I cannot use "Async Interrupt" block and "Task Sync", how can I model interrupt? (without those two blocks, code is generated fine)