diff -urN kopete-0.12.0.orig/kopete/protocols/jabber/jingle/configure.in.in kopete-0.12.0/kopete/protocols/jabber/jingle/configure.in.in
--- kopete-0.12.0.orig/kopete/protocols/jabber/jingle/configure.in.in	2006-05-31 04:24:01 +0400
+++ kopete-0.12.0/kopete/protocols/jabber/jingle/configure.in.in	2006-06-11 09:18:45 +0400
@@ -78,7 +78,36 @@
 # AC_SUBST(SPEEX_LIBS)
 # CPPFLAGS=$CPPFLAGS_save
 # LDFLAGS=$LDFLAGS_save
-ilbc_found="no"
+
+AC_ARG_WITH( ilbc,
+      [  --with-ilbc      Set prefix where ilbc headers and libs can be found (ex:/usr, /usr/local, none to disable ilbc support) [default=/usr] ],
+      [ ilbc_prefix=${withval}],[ ilbc_prefix="/usr" ])
+                                                                                                                                     
+if test "$ilbc_prefix" = "none" ; then
+        AC_MSG_NOTICE([iLBC codec support disabled. ])
+else
+        ILBC_CFLAGS=" -I${ilbc_prefix}/include/ilbc"
+        ILBC_LIBS="-L${ilbc_prefix}/lib -lilbc -lm"
+        CPPFLAGS_save=$CPPFLAGS
+        CPPFLAGS=$ILBC_CFLAGS
+        LDFLAGS_save=$LDFLAGS
+        LDFLAGS=$ILBC_LIBS
+        AC_CHECK_HEADERS(iLBC_decode.h,[AC_CHECK_LIB(ilbc,iLBC_decode,ilbc_found=yes,ilbc_found=no,[-lm])
+        ],ilbc_found=no)
+                                                                                                                                     
+        CPPFLAGS=$CPPFLAGS_save
+        LDFLAGS=$LDFLAGS_save
+                                                                                                                                     
+        if test "$ilbc_found" = "no" ; then
+                AC_MSG_WARN([Could not find ilbc headers or libs. Please install ilbc package from http://www.linphone.org if you want iLBC codec support in Kopete Jabber plugin.])
+                ILBC_CFLAGS=
+                ILBC_LIBS=
+        else
+                AC_DEFINE(HAVE_ILBC,1,[Defined when we have ilbc codec lib])
+                AC_SUBST(ILBC_CFLAGS)
+                AC_SUBST(ILBC_LIBS)
+        fi
+fi
 
 AM_CONDITIONAL(include_jingle, test "$with_jingle" = "yes")