Fix lcms detection

Thanks to Francois Andriot for the patch

chalk/configure.in.in

@@ -48,7 +48,7 @@ else
 fi
 
 
-ac_link='$LIBTOOL_SHELL --mode=link ${CXX-g++} -o conftest $CXXFLAGS $all_includes $CPPFLAGS $LDFLAGS $all_libraries -ltqt conftest.$ac_ext -llcms 1>&5'
+ac_link='$LIBTOOL_SHELL --mode=link --tag=LD ${CXX-g++} -o conftest $CXXFLAGS $all_includes $CPPFLAGS $LDFLAGS $all_libraries -ltqt conftest.$ac_ext -llcms 1>&5'
 
 if AC_TRY_EVAL(ac_link) && test -s conftest; then
     	AC_MSG_RESULT(yes)