[Feature]: libffi-3.4.6 to get past undefined variable error.

[LeonG71]

Feature description

libffi-3.4.4 causes undefined variable error.

use libffi-3.4.6 to get past undefined variable error.

Want resolve what problem

When using Xuantie-900-gcc-linux-6.6.0-glibc-x86_64-V2.10.1,

libffi-3.4.4 causes implicit declaration error

tmp-libffi-x86_64-pc-linux-gnu/libffi-3.4.3/src/tramp.c: In function 'ffi_tramp_get_temp_file':
tmp-libffi-x86_64-pc-linux-gnu/libffi-3.4.3/src/tramp.c:262:22: error: implicit declaration of function 'open_temp_exec_file' [-Wimplicit-function-declaration] 262 | tramp_globals.fd = open_temp_exec_file ();

use libffi-3.4.6 to get past implicit declaration error

Anything else

No response