Issue a warning if no sound system was found.
diff --git a/configure.ac b/configure.ac
index 600393c..84c42fb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1787,6 +1787,15 @@
echo "*** enable Wine to use TrueType fonts."
fi
+if test -z "$ALSALIBS" -a -z "$ARTSC_LIBS" -a -z "$AUDIOIOLIBS" -a \
+ -z "$ac_cv_lib_soname_jack" -a -z "$NASLIBS" -a \
+ "$ac_cv_c_opensoundsystem" = "no"
+then
+ echo "*** No sound system was found. Windows applications will be silent."
+ echo "*** The currently supported sound systems are:"
+ echo "*** ALSA, ARTS, AudioIO, Jack, NAS and OSS"
+fi
+
echo
echo "Configure finished. Do '${ac_make} depend && ${ac_make}' to compile Wine."
echo
