Use libspeexdsp only if available version 2

configure.ac

@@ -223,7 +223,6 @@ AC_ARG_WITH([speex],
   [],
   [with_speex=yes])
 
-LIBSPEEX=
 AS_IF([test "x$with_speex" != xno],
   [AC_CHECK_HEADER([speex/speex.h], , AC_MSG_FAILURE([Unable to find the libspeex headers (you may need to install the dev package).  You may use --without-speex to compile without speex codec support.]))]
   [AC_CHECK_HEADER([speex/speex_preprocess.h], , AC_MSG_FAILURE([Unable to find the libspeexdsp headers (you may need to install the libspeexdsp-dev package).  You may use --without-speex to compile without speex codec support.]))]
@@ -234,12 +233,17 @@ AS_IF([test "x$with_speex" != xno],
        )
     ]
 dnl More advanced check in case the libspeexdsp is not installed
-AC_CHECK_LIB(speex, speex_preprocess_run, [AC_DEFINE(HAVE_SPEEX_DSP)])
+AC_CHECK_LIB(speex, speex_preprocess_run, HAVE_SPEEXDSP=true, HAVE_SPEEXDSP=false)
+
+if test $HAVE_SPEEXDSP = false; then
+ AC_MSG_WARN([The silence detection in speex could not have been enabled])
+fi
+
 )
-    
+
 AC_DEFINE([HAVE_SPEEX], test "x$with_speex" = "xyes", [Define if you have libspeex])
 AM_CONDITIONAL(BUILD_SPEEX, test "x$with_speex" = "xyes" )
-AM_CONDITIONAL(HAVE_SPEEX_DSP, $(HAVE_SPEEX_DSP))
+AM_CONDITIONAL(ENABLE_SPEEXDSP, $HAVE_SPEEXDSP)
 
 dnl Check for ilbc support
 AC_ARG_WITH([ilbc],

src/audio/codecs/Makefile.am

@@ -9,16 +9,16 @@ libcodec_gsm_so_LDFLAGS = --shared -lc -lgsm
 INSTALL_GSM_RULE = install-libcodec_gsm_so
 endif
 
+if ENABLE_SPEEXDSP
+SPEEXDSP_LIB = -lspeexdsp
+endif
+
 if BUILD_SPEEX
 SPEEX_LIB = libcodec_speex.so
-SPEEX_DSP_LIB=
-if HAVE_SPEEX_DSP
-SPEEX_DSP_LIB = -lspeexdsp
-endif
 libcodec_speex_so_SOURCES = speexcodec.cpp
 libcodec_speex_so_CFLAGS = -fPIC -g -Wall
 libcodec_speex_so_CXXFLAGS = -fPIC -g -Wall
-libcodec_speex_so_LDFLAGS = --shared -lc -lspeex $(SPEEX_DSP_LIB) -lm
+libcodec_speex_so_LDFLAGS = --shared -lc -lspeex $(SPEEXDSP_LIB) -lm
 INSTALL_SPEEX_RULE = install-libcodec_speex_so
 endif
 

src/audio/codecs/speexcodec.cpp

@@ -59,7 +59,7 @@ class Speex : public AudioCodec{
             speex_bits_init(&_speex_enc_bits);
             _speex_enc_state = speex_encoder_init(_speexModePtr);
 
-#ifdef HAVE_SPEEX_DSP
+#if ENABLE_SPEEXDSP
 
             int enable = 1;
             int quality = 10;
@@ -114,7 +114,7 @@ class Speex : public AudioCodec{
         {
             speex_bits_reset(&_speex_enc_bits);
 
-#ifdef HAVE_SPEEX_DSP
+#if ENABLE_SPEEXDSP
             speex_encoder_ctl(_speex_enc_state,SPEEX_SET_SAMPLING_RATE,&_clockRate);
             speex_preprocess_run(_preprocess_state, src);
 #endif