use register_cmu_us_kal instead of register_cmu_us_kal16

Index: configure.ac
--- configure.ac.orig
+++ configure.ac
@@ -526,17 +526,22 @@ AC_ARG_ENABLE(speech, 
 BUILD_SPEECH=
 
 # has flite, for speech synthesis.
+orig_CPPFLAGS="${CPPFLAGS}"
+orig_LDFLAGS="${LDFLAGS}"
+LDFLAGS="-L${TRUEPREFIX}/lib -lsndio"
 AC_CHECK_LIB(flite, new_utterance, have_speech=yes, have_speech=no)
 AC_CHECK_HEADERS(flite/flite.h, have_flite=yes, have_flite=no)
 if test $have_flite = yes -a $have_speech = yes -a $enable_speech = yes; then
    BUILD_SPEECH="speech say"
-   FLITE_BASE_LIBS="-lflite_usenglish -lflite_cmulex -lflite"
-   AC_CHECK_LIB(flite_cmu_us_kal16, register_cmu_us_kal16, have_kal16=yes, have_kal16=no, $FLITE_BASE_LIBS)
-   if test $have_kal16 = no; then
+   FLITE_BASE_LIBS="-lflite_usenglish -lflite_cmulex -lflite -lsndio"
+   AC_CHECK_LIB(flite_cmu_us_kal, register_cmu_us_kal, have_kal=yes, have_kal=no, $FLITE_BASE_LIBS)
+   if test $have_kal = no; then
       BUILD_SPEECH=
    fi
 fi
 AC_SUBST(BUILD_SPEECH)
+CPPFLAGS="${orig_CPPFLAGS}"
+LDFLAGS="${orig_LDFLAGS}"
 
 #--------------------------------------------------------------------
 # NSSpeechRecognizer