Make gcc -Wall happy; remove dummy variable (can't see where it's needed).
diff --git a/Modules/sunaudiodev.c b/Modules/sunaudiodev.c
index d8b04ff..43ccf48 100644
--- a/Modules/sunaudiodev.c
+++ b/Modules/sunaudiodev.c
@@ -39,6 +39,14 @@
#define SOLARIS
#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#ifdef HAVE_FCNTL_H
+#include <fcntl.h>
+#endif
+
#include <stropts.h>
#include <sys/ioctl.h>
#ifdef SOLARIS
@@ -69,8 +77,6 @@
static object *SunAudioError;
-static int dummy_for_dl;
-
#define is_sadobject(v) ((v)->ob_type == &Sadtype)
#define is_sadstatusobject(v) ((v)->ob_type == &Sadstatustype)