diff -X excl -rduNp qemu.oorig/configure qemu/configure
--- qemu.oorig/configure	2005-11-26 20:04:12.000000000 +0100
+++ qemu/configure	2005-12-01 19:49:56.000000000 +0100
@@ -445,6 +475,15 @@ fi # kqemu
 
 fi # kqemu and linux
 
+# sound support libraries
+# alsa
+if test "$alsa" = "yes" ; then
+    cat > $TMPC << EOF
+#include <alsa/asoundlib.h>
+int main(void) { snd_pcm_t **handle; return snd_pcm_close(*handle); }
+EOF
+    $cc -o $TMPE $TMPC -lasound 2> /dev/null || alsa="no"
+fi # alsa
 
 echo "Install prefix    $prefix"
 echo "BIOS directory    $datadir"