Allow IAX to be built with globally installed libiax

src/Makefile.am

@@ -12,11 +12,16 @@ ZEROCONFFLAGS =
 endif
 
 if USE_IAX
-IAX_LIBS = $(top_builddir)/libs/libiax2/src/libiax.la
+# Use the global instead of locally built
+#IAX_LIBS = $(top_builddir)/libs/libiax2/src/libiax.la
+IAX_LIBS =
 IAX_FLAGS = -DUSE_IAX
-IAX_CFLAGS = -I$(top_srcdir)/libs/libiax2/src/
-IAXSOURCES = iaxaccount.cpp iaxvoiplink.cpp iaxcall.cpp
-IAXHEADERS = iaxaccount.h iaxvoiplink.h iaxcall.h
+#IAX_CFLAGS = -I$(top_srcdir)/libs/libiax2/src/
+IAX_CFLAGS =
+#IAXSOURCES = iaxaccount.cpp iaxvoiplink.cpp iaxcall.cpp
+IAXSOURCES = 
+#IAXHEADERS = iaxaccount.h iaxvoiplink.h iaxcall.h
+IAXHEADERS =
 else
 IAX_LIBS = 
 IAX_FLAGS =