# C library options

menu "C-library"

config LIBC

    string

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"

config LIBC_SUPPORT_THREADS_ANY

    bool

    default n

config LIBC_SUPPORT_NPTL

    bool

    default n

    select LIBC_SUPPORT_THREADS_ANY

config LIBC_SUPPORT_LINUXTHREADS

    bool

    default n

    select LIBC_SUPPORT_THREADS_ANY

config LIBC_SUPPORT_WIN32THREADS

    bool

    default n

    select LIBC_SUPPORT_THREADS_ANY

config THREADS

    string

    default "nptl"          if THREADS_NPTL

    default "linuxthreads"  if THREADS_LINUXTHREADS

    default "win32"         if THREADS_WIN32THREADS

    default "none"          if THREADS_NONE || LIBC_none

#                              No C library, no threads!

if ! LIBC_none

comment "Common C library options"

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_WIN32          if LIBC_SUPPORT_WIN32THREADS

    default THREADS_NONE           if ! LIBC_SUPPORT_THREADS_ANY

config THREADS_NPTL

    bool

    prompt "nptl"

    depends on LIBC_SUPPORT_NPTL

config THREADS_LINUXTHREADS

    bool

    prompt "linuxthreads"

    depends on LIBC_SUPPORT_LINUXTHREADS

config THREADS_WIN32THREADS

    bool

    prompt "win32"

    depends on LIBC_SUPPORT_WIN32THREADS

config THREADS_NONE

    bool

    prompt "none"

endchoice

config LIBC_XLDD

    bool

    prompt "Install a cross ldd-like helper"

    depends on ! BARE_METAL

    default y

    help

      Say 'Y' here if you want to have a ldd-like helper that

      you can run on your build system, and that will (try to)

      resolve shared libraries dependencies as if run on the

      target.

      Note that the cross-ldd helper is not a full replacement

      for the native ldd. Please see the help, by running it

      with '--help' for more explanations.

source "config.gen/libc.in.2"

endif # ! LIBC_none

endmenu