diff --git a/CMakeLists.txt b/CMakeLists.txt
index 932b14b..e2d39ec 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -124,8 +124,8 @@ set(CMAKE_CXX_FLAGS_RELEASE "-O3 -flto -mtune=native \
 -fdata-sections -ffunction-sections -fomit-frame-pointer -finline-functions")
 
 if(NOT ${RPI})
-    set(CMAKE_C_FLAGS_RELEASE ${CMAKE_C_FLAGS_RELEASE} -mfpmath=sse -march=x86-64)
-    set(CMAKE_CXX_FLAGS_RELEASE ${CMAKE_C_FLAGS_RELEASE} -mfpmath=sse -march=x86-64)
+    set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -mfpmath=sse -march=x86-64")
+    set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -mfpmath=sse -march=x86-64")
 endif()
 set(CMAKE_CXX_FLAGS_DEBUG "-O0 -g -Wall ")
 
diff --git a/third_party/portaudio b/third_party/portaudio
index daaf637..88ab584 160000
--- a/third_party/portaudio
+++ b/third_party/portaudio
@@ -1 +1 @@
-Subproject commit daaf637f6f9fce670031221abfd7dfde92e5cce3
+Subproject commit 88ab584e7bf4358599744cd662cfbc978f41efbf