testsurround: Add surround sound channel tester

test/Makefile.in

@@ -62,6 +62,7 @@ TARGETS = \
 	testsprite2$(EXE) \
 	testspriteminimal$(EXE) \
 	teststreaming$(EXE) \
+	testsurround$(EXE) \
 	testthread$(EXE) \
 	testtimer$(EXE) \
 	testurl$(EXE) \
@@ -95,6 +96,9 @@ loopwave$(EXE): $(srcdir)/loopwave.c
 loopwavequeue$(EXE): $(srcdir)/loopwavequeue.c
 	$(CC) -o $@ $^ $(CFLAGS) $(LIBS)
 
+testsurround$(EXE): $(srcdir)/testsurround.c
+	$(CC) -o $@ $^ $(CFLAGS) $(LIBS)
+
 testresample$(EXE): $(srcdir)/testresample.c
 	$(CC) -o $@ $^ $(CFLAGS) $(LIBS)