Expose sndio as a build option for any supporting system.

build/moz.configure/old.configure

@@ -215,6 +215,7 @@ def old_configure_options(*options):
     '--enable-pref-extensions',
     '--enable-private-build',
     '--enable-pulseaudio',
+    '--enable-sndio',
     '--enable-raw',
     '--enable-readline',
     '--enable-reflow-perf',

config/system-headers

@@ -910,7 +910,9 @@ signal.h
 SimpleGameSound.h
 SIOUX.h
 size_t.h
+#ifdef MOZ_SNDIO
 sndio.h
+#endif
 someincludefile.h
 Sound.h
 soundcard.h

media/libcubeb/src/moz.build

@@ -39,7 +39,7 @@ if CONFIG['MOZ_JACK']:
     ]
     DEFINES['USE_JACK'] = True
 
-if CONFIG['OS_ARCH'] == 'OpenBSD':
+if CONFIG['MOZ_SNDIO']:
     SOURCES += [
         'cubeb_sndio.c',
     ]

media/libcubeb/tests/moz.build

@@ -68,7 +68,7 @@ elif CONFIG['MOZ_WIDGET_TOOLKIT'] == 'uikit':
       '-framework CoreFoundation',
       '-framework AudioToolbox',
     ]
-elif CONFIG['OS_TARGET'] == 'OpenBSD':
+elif CONFIG['MOZ_SNDIO']:
     OS_LIBS += [
         'sndio',
     ]

old-configure.in

@@ -3153,6 +3153,23 @@ fi
 
 AC_SUBST(MOZ_PULSEAUDIO)
 
+dnl ========================================================
+dnl = Enable sndio
+dnl ========================================================
+MOZ_ARG_ENABLE_BOOL(sndio,
+[  --enable-sndio       Enable sndio support],
+    MOZ_SNDIO=1,
+    MOZ_SNDIO= )
+
+if test -n "$MOZ_SNDIO"; then
+    AC_DEFINE(MOZ_SNDIO)
+    MOZ_CHECK_HEADER([sndio.h], [],
+        AC_MSG_ERROR(
+            [--enable-sndio specified but it requires sndio development headers]))
+    AC_DEFINE(MOZ_SNDIO)
+fi
+AC_SUBST(MOZ_SNDIO)
+
 dnl ========================================================
 dnl NegotiateAuth
 dnl ========================================================

toolkit/library/moz.build

@@ -241,7 +241,7 @@ OS_LIBS += CONFIG['ICONV_LIBS']
 if CONFIG['MOZ_WIDGET_TOOLKIT'] in ('cocoa', 'uikit'):
     OS_LIBS += CONFIG['TK_LIBS']
 
-if CONFIG['OS_ARCH'] == 'OpenBSD':
+if CONFIG['MOZ_SNDIO']:
     OS_LIBS += [
         'sndio',
     ]