In case it helps, here's a patch that at least compiles. It still leaves the declarations in the headers, so you might want to reorganize it. I'm not sure if the reference to CONFIG_SND_SEQUENCER_MODULE is actually required; doesn't that imply CONFIG_SND_SEQUENCER?

diff --git a/sound/drivers/opl3/opl3_synth.c b/sound/drivers/opl3/opl3_synth.c index a7bf7a4..2c0a8fd 100644 --- a/sound/drivers/opl3/opl3_synth.c +++ b/sound/drivers/opl3/opl3_synth.c @@ -178,6 +178,8 @@ int snd_opl3_release(struct snd_hwdep * hw, struct file *file) return 0; }

+#if defined(CONFIG_SND_SEQUENCER) || defined(CONFIG_SND_SEQUENCER_MODULE) + /* * write the device - load patches */ @@ -341,6 +343,25 @@ void snd_opl3_clear_patches(struct snd_opl3 *opl3) } memset(opl3->patch_table, 0, sizeof(opl3->patch_table)); } +#else /* SND_SEQUENCER not configured */ + +/* Stub functions to avoid #ifdef in opl3_lib.c */ +long snd_opl3_write(struct snd_hwdep *hw, const char __user *buf, long count, + loff_t *offset) +{ + (void)hw; + (void)buf; + (void)count; + (void)offset; + return -ENXIO; +} +void snd_opl3_clear_patches(struct snd_opl3 *opl3) +{ + (void)opl3; +} + +#endif +

/* ------------------------------ */