webrtc/third_party/libvpx/source/config/mac/ia32/vpx_config.c

static const char* const cfg = "--target=x86-darwin9-gcc --enable-pic --enable-error-concealment --disable-install-docs --disable-install-srcs --disable-examples --disable-internal-stats";
const char *vpx_codec_build_config(void) {return cfg;}