add --disable-resample configure option to build without resampler support

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@4783 d0543943-73ff-0310-b7d9-9358b9ac24b2

Makefile.am

@@ -80,12 +80,12 @@ CORE_CFLAGS    += -I$(switch_srcdir)/libs/sqlite
 CORE_CFLAGS    += -I$(switch_srcdir)/libs/pcre
 CORE_CFLAGS    += -I$(switch_srcdir)/libs/srtp/include
 CORE_CFLAGS    += -I$(switch_srcdir)/libs/srtp/crypto/include
-CORE_CFLAGS    += -I$(switch_srcdir)/libs/libresample/include
+CORE_CFLAGS    += $(RESAMPLE_CFLAGS)
 CORE_CFLAGS    += -I$(switch_srcdir)/libs/libteletone/src
 
 CORE_LIBS      = libs/apr/libapr-1.la libs/apr-util/libaprutil-1.la
 CORE_LIBS     += libs/sqlite/libsqlite3.la libs/pcre/libpcre.la
-CORE_LIBS     += libs/srtp/libsrtp.la libs/libresample/libresample.la
+CORE_LIBS     += libs/srtp/libsrtp.la $(RESAMPLE_LIB)
 
 lib_LTLIBRARIES	          = libfreeswitch.la
 libfreeswitch_la_CFLAGS   = $(CORE_CFLAGS) $(AM_CFLAGS)
@@ -171,9 +171,11 @@ libs/srtp/libsrtp.la: libs/srtp libs/srtp/.update
 	@cd libs/srtp && $(MAKE)
 	@$(TOUCH_TARGET)
 
+if USE_INTREE_RESAMPLE
 libs/libresample/libresample.la: libs/libresample libs/libresample/.update
 	@cd libs/libresample && $(MAKE)
 	@$(TOUCH_TARGET)
+endif
 
 core:  libfreeswitch.la