Official releases are built by Golang toolchain with CGO disabled.
For packagers who need to cross-compile with CGO, use "build" target
with proper TAGS/LDFLAGS/CGO_CFLAGS to make "$(EXECUTABLE)" target run
the "go build" command.
By the way, drop i386 arch support
---------
Signed-off-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
