diff --git a/CMakeLists.txt b/CMakeLists.txt
index 23b4ff3..547fe4d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -10,7 +10,16 @@ set (STATIC_BUILD true)
 
 # It's an hack in order to be able to link statically planetblupi on darwin.
 if (APPLE)
-  set (CMAKE_LDFLAGS "-L${CMAKE_BINARY_DIR}/lib -framework AudioToolBox -framework CoreAudio -framework CoreFoundation -framework Cocoa -framework OpenGL -framework IOKit -framework CoreVideo -framework Carbon")
+  set (CMAKE_LDFLAGS "-L${CMAKE_BINARY_DIR}/lib -framework AudioToolBox -framework AudioUnit -framework CoreAudio -framework CoreFoundation -framework Cocoa -framework OpenGL -framework IOKit -framework CoreVideo -framework Carbon")
+
+  if (OLD_SDK)
+    set (OSX_SDK_VERSION 10.9)
+    set (CMAKE_OSX_SYSROOT "/Developer/SDKs/MacOSX${OSX_SDK_VERSION}.sdk/")
+    set (CMAKE_OSX_DEPLOYMENT_TARGET ${OSX_SDK_VERSION})
+    set (CMAKE_CXX_FLAGS "--sysroot ${CMAKE_OSX_SYSROOT} -mmacosx-version-min=${OSX_SDK_VERSION} ${CMAKE_CXX_FLAGS}")
+    set (CMAKE_C_FLAGS "--sysroot ${CMAKE_OSX_SYSROOT} -mmacosx-version-min=${OSX_SDK_VERSION} ${CMAKE_C_FLAGS}")
+  endif ()
+  set (CMAKE_CPP_FLAGS "-I${CMAKE_BINARY_DIR}/include")
 endif ()
 
 configure_file (cmd.sh.in cmd.sh @ONLY)
diff --git a/cmd.sh.in b/cmd.sh.in
index e0b620b..078d923 100755
--- a/cmd.sh.in
+++ b/cmd.sh.in
@@ -5,6 +5,9 @@ export INCLUDE_PATH="@CMAKE_BINARY_DIR@/include"
 export LIBRARY_PATH="@CMAKE_BINARY_DIR@/lib"
 export BINARY_PATH="@CMAKE_BINARY_DIR@/bin"
 export LDFLAGS="@CMAKE_LDFLAGS@"
+export CXXFLAGS="@CMAKE_CXX_FLAGS@"
+export CFLAGS="@CMAKE_C_FLAGS@"
+export CPPFLAGS="@CMAKE_CPP_FLAGS@"
 
 cmd=$1
 shift