One of my build aliases doesn't play nice with USE_MINGW=1, so my build lied to me. Will revert until I fix it up.
This reverts commit 459df8f3a1.
Change-Id: I7905c5ae5ee85fb2d228ce63d81c79f140998c18
Apparently there are two classes of this warning in clang.
-Wformat-security is only emitted for cases of
`func(nonliteral_fmt_string)` (no args), and -Wformat-nonliteral is
emitted for cases *with* arguments. For whatever reason, the latter
isn't included in -Wextra and must be manually enabled.
To make this more easily portable to Windows, move the existing
gnu_printf/__printf__ decision into base/macros.h as ATTRIBUTE_FORMAT.
Change-Id: I3b0990e1d1f0a2e9c13b32f5cd60478946cb5fc6