How to get a Minimal rtems on X86

[Kelvin Lincoln]

Hi.
   I want to get a minimal system on X86..I used the rtems 4.11 on centOS
6.3 Virtual Machine provided on the www.rtems.org.I have seen the
sample/minimum/minimum.exe with objdump -h to seen the size of the test
section and nm to seen the symtable.
   In the symbol table,I found the  functions of File system,Clock
driver.But in the init.c of the sample minimum,It has defined
CONFIGURE_APPLICATION_DOES_NOT_NEED_CLOCK_DRIVER,CONFIGURE_APPLICATION_DISABLE_FILESYSTEM
and so on.
   Why? If I want to strip these modules,What can I do?
   Thank you.

-- 
Kelly Quan
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