# Allow more config/external/ libs built against system-wide version.

diff --git config/Makefile.in config/Makefile.in
index 5383399..0410004 100644
--- config/Makefile.in
+++ config/Makefile.in
@@ -79,6 +79,13 @@ export:: $(export-preqs)
 		-DMOZ_NATIVE_ICU=$(MOZ_NATIVE_ICU) \
 		-DMOZ_NATIVE_GRAPHITE2=$(MOZ_NATIVE_GRAPHITE2) \
 		-DMOZ_NATIVE_HARFBUZZ=$(MOZ_NATIVE_HARFBUZZ) \
+		-DMOZ_NATIVE_OGG=$(MOZ_NATIVE_OGG) \
+		-DMOZ_NATIVE_THEORA=$(MOZ_NATIVE_THEORA) \
+		-DMOZ_NATIVE_VORBIS=$(MOZ_NATIVE_VORBIS) \
+		-DMOZ_NATIVE_TREMOR=$(MOZ_NATIVE_TREMOR) \
+		-DMOZ_NATIVE_OPUS=$(MOZ_NATIVE_OPUS) \
+		-DMOZ_NATIVE_SPEEX=$(MOZ_NATIVE_SPEEX) \
+		-DMOZ_NATIVE_SOUNDTOUCH=$(MOZ_NATIVE_SOUNDTOUCH) \
 		$(srcdir)/system-headers | $(PERL) $(topsrcdir)/nsprpub/config/make-system-wrappers.pl system_wrappers
 	$(INSTALL) system_wrappers $(DIST)
 
diff --git config/external/moz.build config/external/moz.build
index f67c5c7..eb909ce 100644
--- config/external/moz.build
+++ config/external/moz.build
@@ -15,13 +15,13 @@ if CONFIG['MOZ_UPDATER']:
     if not CONFIG['MOZ_NATIVE_BZ2']:
         external_dirs += ['modules/libbz2']
 
-if CONFIG['MOZ_VORBIS']:
+if CONFIG['MOZ_VORBIS'] and not CONFIG['MOZ_NATIVE_VORBIS']:
     external_dirs += ['media/libvorbis']
 
-if CONFIG['MOZ_TREMOR']:
+if CONFIG['MOZ_TREMOR'] and not CONFIG['MOZ_NATIVE_TREMOR']:
     external_dirs += ['media/libtremor']
 
-if CONFIG['MOZ_OPUS']:
+if CONFIG['MOZ_OPUS'] and not CONFIG['MOZ_NATIVE_OPUS']:
     external_dirs += ['media/libopus']
 
 if CONFIG['MOZ_WEBM']:
@@ -34,16 +34,23 @@ if CONFIG['MOZ_VPX'] and not CONFIG['MOZ
     external_dirs += ['media/libvpx']
 
 if CONFIG['MOZ_OGG']:
-    external_dirs += ['media/libogg', 'media/libtheora']
+    if not CONFIG['MOZ_NATIVE_OGG']:
+        external_dirs += ['media/libogg']
+    if not CONFIG['MOZ_NATIVE_THEORA']:
+        external_dirs += ['media/libtheora']
 
 if not CONFIG['MOZ_NATIVE_PNG']:
     external_dirs += ['media/libpng']
 
+if not CONFIG['MOZ_NATIVE_SPEEX']:
+    external_dirs += ['media/libspeex_resampler']
+
+if not CONFIG['MOZ_NATIVE_SOUNDTOUCH']:
+    external_dirs += ['media/libsoundtouch']
+
 external_dirs += [
     'media/kiss_fft',
     'media/libcubeb',
-    'media/libspeex_resampler',
-    'media/libsoundtouch',
 ]
 
 PARALLEL_DIRS += ['../../' + i for i in external_dirs]
diff --git config/system-headers config/system-headers
index bef567c..9807c29 100644
--- config/system-headers
+++ config/system-headers
@@ -1050,8 +1050,6 @@ X11/Xutil.h
 xpt_struct.h
 xpt_xdr.h
 zmouse.h
-speex/speex_resampler.h
-soundtouch/SoundTouch.h
 #if MOZ_NATIVE_PNG==1
 png.h
 #endif
@@ -1119,6 +1117,8 @@ ogg/ogg.h
 ogg/os_types.h
 nestegg/nestegg.h
 cubeb/cubeb.h
+speex/speex_resampler.h
+soundtouch/SoundTouch.h
 #endif
 gst/gst.h
 gst/app/gstappsink.h
@@ -1155,3 +1155,29 @@ graphite2/Segment.h
 harfbuzz/hb-ot.h
 harfbuzz/hb.h
 #endif
+#if MOZ_NATIVE_OGG==1
+ogg/ogg.h
+ogg/os_types.h
+#endif
+#if MOZ_NATIVE_THEORA==1
+theora/theoradec.h
+#endif
+#if MOZ_NATIVE_VORBIS==1
+vorbis/codec.h
+vorbis/vorbisenc.h
+#endif
+#if MOZ_NATIVE_TREMOR==1
+tremor/ivorbiscodec.h
+#endif
+#if MOZ_NATIVE_OPUS==1
+opus.h
+opus_multistream.h
+opus/opus.h
+opus/opus_multistream.h
+#endif
+#if MOZ_NATIVE_SPEEX==1
+speex/speex_resampler.h
+#endif
+#if MOZ_NATIVE_SOUNDTOUCH==1
+soundtouch/SoundTouch.h
+#endif
diff --git configure.in configure.in
index 87db361..7947626 100644
--- configure.in
+++ configure.in
@@ -5211,6 +5211,57 @@ if test "${ac_cv_c_attribute_aligned}" != "0"; then
 fi
 
 dnl ========================================================
+dnl Check for libogg
+dnl ========================================================
+
+MOZ_ARG_WITH_BOOL(system-ogg,
+[  --with-system-ogg       Use system libogg (located with pkgconfig)],
+MOZ_NATIVE_OGG=1,
+MOZ_NATIVE_OGG=)
+
+if test -n "$MOZ_NATIVE_OGG"; then
+    PKG_CHECK_MODULES(MOZ_OGG, ogg >= 1.2.1)
+fi
+
+AC_SUBST(MOZ_NATIVE_OGG)
+AC_SUBST(MOZ_OGG_CFLAGS)
+AC_SUBST(MOZ_OGG_LIBS)
+
+dnl ========================================================
+dnl Check for libvorbis
+dnl ========================================================
+
+MOZ_ARG_WITH_BOOL(system-vorbis,
+[  --with-system-vorbis    Use system libvorbis (located with pkgconfig)],
+MOZ_NATIVE_VORBIS=1,
+MOZ_NATIVE_VORBIS=)
+
+if test -n "$MOZ_NATIVE_VORBIS"; then
+    PKG_CHECK_MODULES(MOZ_VORBIS, vorbis vorbisenc >= 1.3.4)
+fi
+
+AC_SUBST(MOZ_NATIVE_VORBIS)
+AC_SUBST(MOZ_VORBIS_CFLAGS)
+AC_SUBST(MOZ_VORBIS_LIBS)
+
+dnl ========================================================
+dnl Check for integer-only libvorbis aka tremor
+dnl ========================================================
+
+MOZ_ARG_WITH_BOOL(system-tremor,
+[  --with-system-tremor    Use system libtremor (located with pkgconfig)],
+MOZ_NATIVE_TREMOR=1,
+MOZ_NATIVE_TREMOR=)
+
+if test -n "$MOZ_NATIVE_TREMOR"; then
+    PKG_CHECK_MODULES(MOZ_TREMOR, vorbisidec >= 1.2.1)
+fi
+
+AC_SUBST(MOZ_NATIVE_TREMOR)
+AC_SUBST(MOZ_TREMOR_CFLAGS)
+AC_SUBST(MOZ_TREMOR_LIBS)
+
+dnl ========================================================
 dnl = Disable Opus audio codec support
 dnl ========================================================
 MOZ_ARG_DISABLE_BOOL(opus,
@@ -5219,6 +5274,76 @@ MOZ_ARG_DISABLE_BOOL(opus,
     MOZ_OPUS=1)
 
 dnl ========================================================
+dnl Check for libopus
+dnl ========================================================
+
+MOZ_ARG_WITH_BOOL(system-opus,
+[  --with-system-opus      Use system libopus (located with pkgconfig)],
+MOZ_NATIVE_OPUS=1,
+MOZ_NATIVE_OPUS=)
+
+if test -n "$MOZ_NATIVE_OPUS"; then
+    PKG_CHECK_MODULES(MOZ_OPUS, opus >= 1.1)
+else
+    MOZ_OPUS_CFLAGS='-I$(topsrcdir)/media/libopus/include'
+fi
+
+AC_SUBST(MOZ_NATIVE_OPUS)
+AC_SUBST(MOZ_OPUS_CFLAGS)
+AC_SUBST(MOZ_OPUS_LIBS)
+
+dnl ========================================================
+dnl Check for libtheora
+dnl ========================================================
+
+MOZ_ARG_WITH_BOOL(system-theora,
+[  --with-system-theora    Use system libtheora (located with pkgconfig)],
+MOZ_NATIVE_THEORA=1,
+MOZ_NATIVE_THEORA=)
+
+if test -n "$MOZ_NATIVE_THEORA"; then
+    PKG_CHECK_MODULES(MOZ_THEORA, theora >= 1.2)
+fi
+
+AC_SUBST(MOZ_NATIVE_THEORA)
+AC_SUBST(MOZ_THEORA_CFLAGS)
+AC_SUBST(MOZ_THEORA_LIBS)
+
+dnl ========================================================
+dnl Check for libspeex resampler
+dnl ========================================================
+
+MOZ_ARG_WITH_BOOL(system-speex,
+[  --with-system-speex     Use system libspeex (located with pkgconfig)],
+MOZ_NATIVE_SPEEX=1,
+MOZ_NATIVE_SPEEX=)
+
+if test -n "$MOZ_NATIVE_SPEEX"; then
+    PKG_CHECK_MODULES(MOZ_SPEEX, speexdsp >= 1.2)
+fi
+
+AC_SUBST(MOZ_NATIVE_SPEEX)
+AC_SUBST(MOZ_SPEEX_CFLAGS)
+AC_SUBST(MOZ_SPEEX_LIBS)
+
+dnl ========================================================
+dnl Check for libsoundtouch
+dnl ========================================================
+
+MOZ_ARG_WITH_BOOL(system-soundtouch,
+[  --with-system-soundtouch Use system libsoundtouch (located with pkgconfig)],
+MOZ_NATIVE_SOUNDTOUCH=1,
+MOZ_NATIVE_SOUNDTOUCH=)
+
+if test -n "$MOZ_NATIVE_SOUNDTOUCH"; then
+    PKG_CHECK_MODULES(MOZ_SOUNDTOUCH, soundtouch >= 1.7.0)
+fi
+
+AC_SUBST(MOZ_NATIVE_SOUNDTOUCH)
+AC_SUBST(MOZ_SOUNDTOUCH_CFLAGS)
+AC_SUBST(MOZ_SOUNDTOUCH_LIBS)
+
+dnl ========================================================
 dnl = Disable VP8 decoder support
 dnl ========================================================
 MOZ_ARG_DISABLE_BOOL(webm,
diff --git content/media/AudioStream.cpp content/media/AudioStream.cpp
index 88c8aa6..6b03288 100644
--- content/media/AudioStream.cpp
+++ content/media/AudioStream.cpp
@@ -13,7 +13,6 @@
 #include "mozilla/Mutex.h"
 #include <algorithm>
 #include "mozilla/Preferences.h"
-#include "soundtouch/SoundTouch.h"
 #include "Latency.h"
 
 namespace mozilla {
diff --git content/media/AudioStream.h content/media/AudioStream.h
index 085676d..00c54fb 100644
--- content/media/AudioStream.h
+++ content/media/AudioStream.h
@@ -15,6 +15,7 @@
 #include "mozilla/StaticMutex.h"
 
 #include "cubeb/cubeb.h"
+#include "soundtouch/SoundTouch.h"
 
 template <>
 class nsAutoRefTraits<cubeb_stream> : public nsPointerRefTraits<cubeb_stream>
diff --git content/media/Makefile.in content/media/Makefile.in
index fd34449..c6c42c8 100644
--- content/media/Makefile.in
+++ content/media/Makefile.in
@@ -6,3 +6,31 @@ include $(topsrcdir)/config/rules.mk
 
 CFLAGS   += $(GSTREAMER_CFLAGS)
 CXXFLAGS += $(GSTREAMER_CFLAGS)
+
+ifdef MOZ_NATIVE_OGG
+CXXFLAGS += $(MOZ_OGG_CFLAGS)
+endif
+
+ifdef MOZ_NATIVE_THEORA
+CXXFLAGS += $(MOZ_THEORA_CFLAGS)
+endif
+
+ifdef MOZ_NATIVE_VORBIS
+CXXFLAGS += $(MOZ_VORBIS_CFLAGS)
+endif
+
+ifdef MOZ_NATIVE_TREMOR
+CXXFLAGS += $(MOZ_TREMOR_CFLAGS)
+endif
+
+ifdef MOZ_NATIVE_OPUS
+CXXFLAGS += $(MOZ_OPUS_CFLAGS)
+endif
+
+ifdef MOZ_NATIVE_SPEEX
+CXXFLAGS += $(MOZ_SPEEX_CFLAGS)
+endif
+
+ifdef MOZ_NATIVE_SOUNDTOUCH
+CXXFLAGS += $(MOZ_SOUNDTOUCH_CFLAGS)
+endif
diff --git media/libcubeb/src/Makefile.in media/libcubeb/src/Makefile.in
index 4c14494..1cb98e2 100644
--- media/libcubeb/src/Makefile.in
+++ media/libcubeb/src/Makefile.in
@@ -9,3 +9,7 @@ CFLAGS += \
         $(MOZ_ALSA_CFLAGS) \
         $(MOZ_PULSEAUDIO_CFLAGS) \
         $(NULL)
+
+ifdef MOZ_NATIVE_SPEEX
+CFLAGS += $(MOZ_SPEEX_CFLAGS)
+endif
diff --git media/libtheora/Makefile.in media/libtheora/Makefile.in
new file mode 100644
index 0000000..1f02dc0
--- /dev/null
+++ media/libtheora/Makefile.in
@@ -0,0 +1,9 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+include $(topsrcdir)/config/rules.mk
+
+ifdef MOZ_NATIVE_OGG
+CFLAGS += $(MOZ_OGG_CFLAGS)
+endif
diff --git media/libtremor/Makefile.in media/libtremor/Makefile.in
new file mode 100644
index 0000000..1f02dc0
--- /dev/null
+++ media/libtremor/Makefile.in
@@ -0,0 +1,9 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+include $(topsrcdir)/config/rules.mk
+
+ifdef MOZ_NATIVE_OGG
+CFLAGS += $(MOZ_OGG_CFLAGS)
+endif
diff --git media/libvorbis/Makefile.in media/libvorbis/Makefile.in
new file mode 100644
index 0000000..1f02dc0
--- /dev/null
+++ media/libvorbis/Makefile.in
@@ -0,0 +1,9 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+include $(topsrcdir)/config/rules.mk
+
+ifdef MOZ_NATIVE_OGG
+CFLAGS += $(MOZ_OGG_CFLAGS)
+endif
diff --git media/webrtc/signaling/test/Makefile.in media/webrtc/signaling/test/Makefile.in
index bbc971c..6ed7e41 100644
--- media/webrtc/signaling/test/Makefile.in
+++ media/webrtc/signaling/test/Makefile.in
@@ -48,6 +48,12 @@ LIBS += \
   $(NULL)
 endif
 
+ifdef MOZ_NATIVE_OPUS
+LIBS += \
+  $(MOZ_OPUS_LIBS) \
+  $(NULL)
+endif
+
 ifdef MOZ_NATIVE_LIBVPX
 LIBS += \
   $(MOZ_LIBVPX_LIBS) \
diff --git media/webrtc/trunk/webrtc/modules/audio_coding/codecs/opus/opus.gypi media/webrtc/trunk/webrtc/modules/audio_coding/codecs/opus/opus.gypi
index 00e77e7..55f48ab 100644
--- media/webrtc/trunk/webrtc/modules/audio_coding/codecs/opus/opus.gypi
+++ media/webrtc/trunk/webrtc/modules/audio_coding/codecs/opus/opus.gypi
@@ -14,9 +14,9 @@
       'conditions': [
         ['build_with_mozilla==1', {
           # Mozilla provides its own build of the opus library.
-          'include_dirs': [
-            '/media/libopus/include',
-           ]
+          'cflags_mozilla': [
+            '$(MOZ_OPUS_CFLAGS)',
+          ],
         }, {
           'dependencies': [
             '<(DEPTH)/third_party/opus/opus.gyp:opus'
diff --git toolkit/library/Makefile.in toolkit/library/Makefile.in
index d42137a..695e75a8 100644
--- toolkit/library/Makefile.in
+++ toolkit/library/Makefile.in
@@ -77,6 +77,34 @@ ifdef MOZ_NATIVE_HUNSPELL
 EXTRA_DSO_LDOPTS += $(MOZ_HUNSPELL_LIBS)
 endif
 
+ifdef MOZ_NATIVE_OGG
+EXTRA_DSO_LDOPTS += $(MOZ_OGG_LIBS)
+endif
+
+ifdef MOZ_NATIVE_THEORA
+EXTRA_DSO_LDOPTS += $(MOZ_THEORA_LIBS)
+endif
+
+ifdef MOZ_NATIVE_VORBIS
+EXTRA_DSO_LDOPTS += $(MOZ_VORBIS_LIBS)
+endif
+
+ifdef MOZ_NATIVE_TREMOR
+EXTRA_DSO_LDOPTS += $(MOZ_TREMOR_LIBS)
+endif
+
+ifdef MOZ_NATIVE_OPUS
+EXTRA_DSO_LDOPTS += $(MOZ_OPUS_LIBS)
+endif
+
+ifdef MOZ_NATIVE_SPEEX
+EXTRA_DSO_LDOPTS += $(MOZ_SPEEX_LIBS)
+endif
+
+ifdef MOZ_NATIVE_SOUNDTOUCH
+EXTRA_DSO_LDOPTS += $(MOZ_SOUNDTOUCH_LIBS)
+endif
+
 ifdef MOZ_NATIVE_LIBEVENT
 EXTRA_DSO_LDOPTS += $(MOZ_LIBEVENT_LIBS)
 endif