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# C library options

config LIBC
    string
    default "none" if BARE_METAL

menu "C-library"

config LIBC_VERSION
    string
    help
      Enter the date of the snapshot you want to use in the form: YYYYMMDD
      where YYYY is the 4-digit year, MM the 2-digit month and DD the 2-digit
      day in the month.
      
      Please note:
      - glibc has snapshots done every monday, and only the last ten are kept.
      - uClibc has daily snapshots, and only the last 30-or-so are kept.
      
      So if you want to be able to re-build your toolchain later, you will
      have to save your C library tarball by yourself.

source config.gen/libc.in

comment "Common C library options"

config LIBC_SUPPORT_NPTL
    bool
    default n

config LIBC_SUPPORT_LINUXTHREADS
    bool
    default n

config THREADS
    string
    default "nptl"          if THREADS_NPTL
    default "linuxthreads"  if THREADS_LINUXTHREADS
    default "none"          if THREADS_NONE

choice
    bool
    prompt "Threading implementation to use:"
    default THREADS_NPTL           if LIBC_SUPPORT_NPTL
    default THREADS_LINUXTHREADS   if LIBC_SUPPORT_LINUXTHREADS && ! LIBC_SUPPORT_NPTL
    default THREADS_NONE           if ! LIBC_SUPPORT_LINUXTHREADS && ! LIBC_SUPPORT_NPTL

config THREADS_NPTL
    bool
    prompt "nptl"
    depends on LIBC_SUPPORT_NPTL

config THREADS_LINUXTHREADS
    bool
    prompt "linuxthreads"
    depends on LIBC_SUPPORT_LINUXTHREADS

config THREADS_NONE
    bool
    prompt "none"

endchoice

endmenu