diff --git a/CMakeLists.txt b/CMakeLists.txt
index a263fd4..6134c5e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,7 +5,16 @@ set(CMAKE_MODULE_PATH ${LIBNYQUIST_ROOT}/cmake)
 
 include(CXXhelpers)
 
-option(BUILD_EXAMPLE "Build example application" ON)
+if (CMAKE_OSX_ARCHITECTURES)
+    if(CMAKE_OSX_SYSROOT MATCHES ".*iphoneos.*")
+        # RtAudio is not portable to ios currently
+        option(BUILD_EXAMPLE "Build example application" OFF)
+    else()
+        option(BUILD_EXAMPLE "Build example application" ON)
+    endif()
+else()
+    option(BUILD_EXAMPLE "Build example application" ON)
+endif()
 
 #-------------------------------------------------------------------------------
 
diff --git a/third_party/opus/celt/celt_decoder.c b/third_party/opus/celt/celt_decoder.c
index 830398e..7fc7961 100644
--- a/third_party/opus/celt/celt_decoder.c
+++ b/third_party/opus/celt/celt_decoder.c
@@ -96,12 +96,6 @@ struct OpusCustomDecoder {
    /* opus_val16 backgroundLogE[], Size = 2*mode->nbEBands */
 };
 
-int celt_decoder_get_size(int channels)
-{
-   const CELTMode *mode = opus_custom_mode_create(48000, 960, NULL);
-   return opus_custom_decoder_get_size(mode, channels);
-}
-
 OPUS_CUSTOM_NOSTATIC int opus_custom_decoder_get_size(const CELTMode *mode, int channels)
 {
    int size = sizeof(struct CELTDecoder)
@@ -111,6 +105,12 @@ OPUS_CUSTOM_NOSTATIC int opus_custom_decoder_get_size(const CELTMode *mode, int
    return size;
 }
 
+int celt_decoder_get_size(int channels)
+{
+    const CELTMode *mode = opus_custom_mode_create(48000, 960, NULL);
+    return opus_custom_decoder_get_size(mode, channels);
+}
+
 #ifdef CUSTOM_MODES
 CELTDecoder *opus_custom_decoder_create(const CELTMode *mode, int channels, int *error)
 {
@@ -128,18 +128,6 @@ CELTDecoder *opus_custom_decoder_create(const CELTMode *mode, int channels, int
 }
 #endif /* CUSTOM_MODES */
 
-int celt_decoder_init(CELTDecoder *st, opus_int32 sampling_rate, int channels)
-{
-   int ret;
-   ret = opus_custom_decoder_init(st, opus_custom_mode_create(48000, 960, NULL), channels);
-   if (ret != OPUS_OK)
-      return ret;
-   st->downsample = resampling_factor(sampling_rate);
-   if (st->downsample==0)
-      return OPUS_BAD_ARG;
-   else
-      return OPUS_OK;
-}
 
 OPUS_CUSTOM_NOSTATIC int opus_custom_decoder_init(CELTDecoder *st, const CELTMode *mode, int channels)
 {
@@ -168,6 +156,20 @@ OPUS_CUSTOM_NOSTATIC int opus_custom_decoder_init(CELTDecoder *st, const CELTMod
    return OPUS_OK;
 }
 
+
+int celt_decoder_init(CELTDecoder *st, opus_int32 sampling_rate, int channels)
+{
+    int ret;
+    ret = opus_custom_decoder_init(st, opus_custom_mode_create(48000, 960, NULL), channels);
+    if (ret != OPUS_OK)
+        return ret;
+    st->downsample = resampling_factor(sampling_rate);
+    if (st->downsample==0)
+        return OPUS_BAD_ARG;
+    else
+        return OPUS_OK;
+}
+
 #ifdef CUSTOM_MODES
 void opus_custom_decoder_destroy(CELTDecoder *st)
 {
diff --git a/third_party/opus/celt/celt_encoder.c b/third_party/opus/celt/celt_encoder.c
index ffff077..f4525c1 100644
--- a/third_party/opus/celt/celt_encoder.c
+++ b/third_party/opus/celt/celt_encoder.c
@@ -126,12 +126,6 @@ struct OpusCustomEncoder {
    /* opus_val16 oldLogE2[],     Size = channels*mode->nbEBands */
 };
 
-int celt_encoder_get_size(int channels)
-{
-   CELTMode *mode = opus_custom_mode_create(48000, 960, NULL);
-   return opus_custom_encoder_get_size(mode, channels);
-}
-
 OPUS_CUSTOM_NOSTATIC int opus_custom_encoder_get_size(const CELTMode *mode, int channels)
 {
    int size = sizeof(struct CELTEncoder)
@@ -143,6 +137,12 @@ OPUS_CUSTOM_NOSTATIC int opus_custom_encoder_get_size(const CELTMode *mode, int
    return size;
 }
 
+int celt_encoder_get_size(int channels)
+{
+    CELTMode *mode = opus_custom_mode_create(48000, 960, NULL);
+    return opus_custom_encoder_get_size(mode, channels);
+}
+
 #ifdef CUSTOM_MODES
 CELTEncoder *opus_custom_encoder_create(const CELTMode *mode, int channels, int *error)
 {