--- configure.in.orig	2014-01-16 09:49:33.000000000 -0800
+++ configure.in	2015-09-23 09:21:26.000000000 -0700
@@ -249,8 +257,14 @@
               elif xcodebuild -version -sdk macosx10.9 Path >/dev/null 2>&1 ; then
                  mac_version_min="-mmacosx-version-min=10.4"
                  mac_sysroot="-isysroot `xcodebuild -version -sdk macosx10.9 Path`"
+              elif xcodebuild -version -sdk macosx10.10 Path >/dev/null 2>&1 ; then
+                 mac_version_min="-mmacosx-version-min=10.4"
+                 mac_sysroot="-isysroot `xcodebuild -version -sdk macosx10.10 Path`"
+              elif xcodebuild -version -sdk macosx10.11 Path >/dev/null 2>&1 ; then
+                 mac_version_min="-mmacosx-version-min=10.4"
+                 mac_sysroot="-isysroot `xcodebuild -version -sdk macosx10.11 Path`"
               else
-                 AC_MSG_ERROR([Couldn't find 10.5, 10.6, 10.7, 10.8 or 10.9 SDK])
+                 AC_MSG_ERROR([Couldn't find 10.5, 10.6, 10.7, 10.8, 10.9, 10.10, or 10.11 SDK])
               fi
            esac

Make build with MacOS SDK > 10.9
LIBPORTAUDIO: Make build with MacOS SDK > 10.9
