audio/alsa: build as module

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20180306074053.22856-5-kraxel@redhat.com

2 files changed, 11 insertions, 3 deletions

diff --git a/audio/Makefile.objs b/audio/Makefile.objs
index f6ce5c6..97f22ec 100644
--- a/audio/Makefile.objs
+++ b/audio/Makefile.objs
@@ -3,7 +3,6 @@ common-obj-$(CONFIG_AUDIO_SDL) += sdlaudio.o
 common-obj-$(CONFIG_AUDIO_OSS) += ossaudio.o
 common-obj-$(CONFIG_SPICE) += spiceaudio.o
 common-obj-$(CONFIG_AUDIO_COREAUDIO) += coreaudio.o
-common-obj-$(CONFIG_AUDIO_ALSA) += alsaaudio.o
 common-obj-$(CONFIG_AUDIO_DSOUND) += dsoundaudio.o
 common-obj-$(CONFIG_AUDIO_PA) += paaudio.o
 common-obj-$(CONFIG_AUDIO_PT_INT) += audio_pt_int.o
@@ -12,8 +11,12 @@ common-obj-y += wavcapture.o
 
 sdlaudio.o-cflags := $(SDL_CFLAGS)
 sdlaudio.o-libs := $(SDL_LIBS)
-alsaaudio.o-libs := $(ALSA_LIBS)
 paaudio.o-libs := $(PULSE_LIBS)
 coreaudio.o-libs := $(COREAUDIO_LIBS)
 dsoundaudio.o-libs := $(DSOUND_LIBS)
 ossaudio.o-libs := $(OSS_LIBS)
+
+# alsa module
+common-obj-$(CONFIG_AUDIO_ALSA) += alsa.mo
+alsa.mo-objs = alsaaudio.o
+alsa.mo-libs := $(ALSA_LIBS)
diff --git a/configure b/configure
index 973dbb9..b150ee8 100755
--- a/configure
+++ b/configure
@@ -5973,7 +5973,12 @@ fi
 echo "CONFIG_AUDIO_DRIVERS=$audio_drv_list" >> $config_host_mak
 for drv in $audio_drv_list; do
     def=CONFIG_AUDIO_$(echo $drv | LC_ALL=C tr '[a-z]' '[A-Z]')
-    echo "$def=y" >> $config_host_mak
+    case "$drv" in
+	alsa)
+	    echo "$def=m" >> $config_host_mak ;;
+	*)
+	    echo "$def=y" >> $config_host_mak ;;
+    esac
 done
 echo "ALSA_LIBS=$alsa_libs" >> $config_host_mak
 echo "PULSE_LIBS=$pulse_libs" >> $config_host_mak