esp-idf-svc 0.53.0

Implementation of the embedded-svc traits for ESP-IDF (Espressif's IoT Development Framework)
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use core::ffi;

// TODO: Figure out which library references this
// picolibc already provides timegm, only define stub for newlib
#[cfg(not(esp_idf_libc_picolibc))]
#[no_mangle]
pub extern "C" fn timegm(_: ffi::c_void) -> ffi::c_int {
    // Not supported but don't crash just in case
    0
}

// Called by the rand crate
#[no_mangle]
pub extern "C" fn pthread_atfork(
    _: *const ffi::c_void,
    _: *const ffi::c_void,
    _: *const ffi::c_void,
) -> ffi::c_int {
    0
}