+AX_DEFINE_DIR(PA_SYSTEM_STATE_PATH, PA_SYSTEM_STATE_PATH, [System state dir])
+
+PA_BINARY=${bindir}/pulseaudio${EXEEXT}
+AX_DEFINE_DIR(PA_BINARY, PA_BINARY, [Location of pulseaudio binary])
+
+PACTL_BINARY=${bindir}/pactl${EXEEXT}
+AX_DEFINE_DIR(PACTL_BINARY, PACTL_BINARY, [Location of pactl binary])
+
+AC_SUBST(PA_SOEXT, [.so])
+AC_DEFINE(PA_SOEXT, [".so"], [Shared object extension])
+
+AC_SUBST(pulseconfdir, ["${sysconfdir}/pulse"])
+AX_DEFINE_DIR(PA_DEFAULT_CONFIG_DIR, pulseconfdir, [Location of configuration files])
+
+#### Mac OSX specific stuff #####
+
+AC_ARG_ENABLE(mac-universal,
+ AS_HELP_STRING([--enable-mac-universal], [Build Mac universal binaries]),
+ enable_mac_universal=$enableval, enable_mac_universal="no")
+
+AC_ARG_WITH(mac-version-min,
+ AS_HELP_STRING([--with-mac-version-min=<version>], [Defines the earliest version of MacOS X that the executables will run on.]),
+ mac_version_min=$withval, mac_version_min="10.5")
+
+AC_ARG_WITH(mac-sysroot,
+ AS_HELP_STRING([--with-mac-sysroot=<path>], [SDK basedir to use as the logical root directory for headers and libraries.]),
+ mac_sysroot=$withval, mac_sysroot="/Developer/SDKs/MacOSX10.5.sdk")
+
+if test "x$os_is_darwin" = "x1" ; then
+ LDFLAGS="$LDFLAGS -isysroot $mac_sysroot -mmacosx-version-min=$mac_version_min"
+ CFLAGS="$CFLAGS -isysroot $mac_sysroot -mmacosx-version-min=$mac_version_min"
+
+ if test "x$enable_mac_universal" = "xyes" ; then
+ mac_arches="-arch i386 -arch x86_64"
+ LDFLAGS="$LDFLAGS $mac_arches"
+ CFLAGS="$CFLAGS $mac_arches"
+ fi
+fi
+
+AC_ARG_ENABLE([webrtc-aec],
+ AS_HELP_STRING([--enable-webrtc-aec], [Enable the optional WebRTC-based echo canceller]))
+
+AS_IF([test "x$enable_webrtc_aec" != "xno"],
+ [PKG_CHECK_MODULES(WEBRTC, [ webrtc-audio-processing ], [HAVE_WEBRTC=1], [HAVE_WEBRTC=0])],
+ [HAVE_WEBRTC=0])
+
+AS_IF([test "x$enable_webrtc_aec" = "xyes" && test "x$HAVE_WEBRTC" = "x0"],
+ [AC_MSG_ERROR([*** webrtc-audio-processing library not found])])
+
+AM_CONDITIONAL([HAVE_WEBRTC], [test "x$HAVE_WEBRTC" = "x1"])
+
+AC_ARG_ENABLE([adrian-aec],
+ AS_HELP_STRING([--enable-adrian-aec], [Enable Adrian's optional echo canceller]))
+AS_IF([test "x$enable_adrian_aec" != "xno"],
+ [HAVE_ADRIAN_EC=1])
+AM_CONDITIONAL([HAVE_ADRIAN_EC], [test "x$HAVE_ADRIAN_EC" = "x1"])
+
+