1. optionally use libSDL for wxSound

2. added --enable-plugins for dynamically loadable SDL backend
3. fixed OSS detection to not be Linux specific


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@25457 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

setup.h.in

@@ -197,6 +197,10 @@
  * Use libtiff
  */
 #define wxUSE_LIBTIFF 0
+/*
+ * Use SDL for audio (Unix)
+ */
+#define wxUSE_LIBSDL 0
 /*
  * Use iODBC
  */
@@ -922,6 +926,11 @@
  */
 #define wxUSE_ICO_CUR 0
 
+/* 
+ * Set to 1 if for dynamically loadable plugins support 
+ */
+#define wxUSE_PLUGINS 0
+
 /*
  * Disable this if your compiler can't cope
  * with omission of prototype parameters.
@@ -1167,6 +1176,9 @@
 /* Define if you have the <esd.h> header file.  */
 #undef HAVE_ESD_H
 
+/* Define if you have the <sys/soundcard.h> header file. */
+#undef HAVE_SYS_SOUNDCARD_H
+
 /* Define if you have a CD-ROM interface known to mmedia.  */
 #undef HAVE_KNOWN_CDROM_INTERFACE