# When doing debug build, -D_FORTIFY_SOURCE=2 gives this error:
# /home/builder/.termux-build/_cache/19b-aarch64-24-v5/bin/../sysroot/usr/include/bits/fortify/stdio.h:51:53: error: use of undeclared identifier '__USE_FORTIFY_LEVEL'
# return __builtin___vsnprintf_chk(dest, size, 0, __bos(dest), format, ap);
# ^
# lib/cdefs.h:123:48: note: expanded from macro '__bos'