fix --srcdir builds for mod_sndfile and mod_siren

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@15914 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/codecs/mod_siren/Makefile

 BASE=../../../..
 G722_1_DIR=$(switch_srcdir)/libs/libg722_1
 G722_1_BUILDDIR=$(switch_builddir)/libs/libg722_1
-LOCAL_CFLAGS=-I$(G722_1_DIR)/src 
+LOCAL_CFLAGS=-I$(G722_1_DIR)/src  -I$(G722_1_BUILDDIR)/src
 G722_1_LA=$(G722_1_BUILDDIR)/src/.libs/libg722_1.la
 LOCAL_LIBADD=$(G722_1_LA)
 include $(BASE)/build/modmake.rules

src/mod/formats/mod_sndfile/Makefile

@@ -4,7 +4,7 @@ SNDFILE_DIR=$(switch_srcdir)/libs/libsndfile
 SNDFILE_BUILDDIR=$(switch_builddir)/libs/libsndfile
 SNDFILELA=$(SNDFILE_BUILDDIR)/src/libsndfile.la
 
-LOCAL_CFLAGS=-I$(SNDFILE_DIR)/src
+LOCAL_CFLAGS=-I$(SNDFILE_DIR)/src -I$(SNDFILE_BUILDDIR)/src
 LOCAL_LIBADD=$(SNDFILELA)
 
 include $(BASE)/build/modmake.rules