More ticket #507: updated GNU build system with the G.722 codec and fixed minor warning about operator precedence

git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@1871 74dad513-b988-da41-8d7b-12977e46ad98
diff --git a/pjmedia/build/os-darwinos.mak b/pjmedia/build/os-darwinos.mak
index f76d340..1126bc3 100644
--- a/pjmedia/build/os-darwinos.mak
+++ b/pjmedia/build/os-darwinos.mak
@@ -23,6 +23,7 @@
 AC_NO_GSM_CODEC=0
 AC_NO_SPEEX_CODEC=0
 AC_NO_ILBC_CODEC=0
+AC_NO_G722_CODEC=0
 
 export CODEC_OBJS=
 
@@ -63,6 +64,12 @@
 export CODEC_OBJS += ilbc.o
 endif
 
+ifeq ($(AC_NO_G722_CODEC),1)
+export CFLAGS += -DPJMEDIA_HAS_G722_CODEC=0
+else
+export CODEC_OBJS += g722.o g722/g722_enc.o g722/g722_dec.o
+endif
+
 
 #
 # PortAudio