sound/soc/codecs/Makefile - maze/linux - Git at Google

 snd-soc-ac97-objs := ac97.o
 snd-soc-wm8731-objs := wm8731.o
 snd-soc-wm8750-objs := wm8750.o
 snd-soc-wm9712-objs := wm9712.o

 obj-$(CONFIG_SND_SOC_AC97_CODEC)	+= snd-soc-ac97.o
 obj-$(CONFIG_SND_SOC_WM8731)	+= snd-soc-wm8731.o
 obj-$(CONFIG_SND_SOC_WM8750)	+= snd-soc-wm8750.o
 obj-$(CONFIG_SND_SOC_WM9712)	+= snd-soc-wm9712.o
	snd-soc-ac97-objs := ac97.o
	snd-soc-wm8731-objs := wm8731.o
	snd-soc-wm8750-objs := wm8750.o
	snd-soc-wm9712-objs := wm9712.o

	obj-$(CONFIG_SND_SOC_AC97_CODEC) += snd-soc-ac97.o
	obj-$(CONFIG_SND_SOC_WM8731) += snd-soc-wm8731.o
	obj-$(CONFIG_SND_SOC_WM8750) += snd-soc-wm8750.o
	obj-$(CONFIG_SND_SOC_WM9712) += snd-soc-wm9712.o