php 4.3 build system changes

I'm updating swig (www.swig.org) to honour the new php build system, namely lack of makefile.in etc. I can't get a config.m4 though that will build a .so, only build a .a or .la Here is a sample config.m4 swig will generate in the next release: PHP_ARG_ENABLE(example, [whether to enable example support], [ --enable-example Enable example support]) if test "no" != "$PHP_EXAMPLE" ; then PHP_SUBST(EXAMPLE_SHARED_LIBADD) AC_DEFINE(HAVE_EXAMPLE, 1, [Define to 1 if you have the example library.]) dnl AC_DEFINE_UNQUOTED(PHP_EXAMPLE_DIR, ["$EXAMPLE_DIR"], [ ]) dnl PHP_EXTENSION(example, [$ext_shared]) PHP_NEW_EXTENSION([example],[example_wrap.c example.c ],[$ext_shared]) PHP_ADD_MAKEFILE_FRAGMENT fi (the makefile fragment adds .SUFFIX support for .cxx and a testmodule: target which loads the module into php to see if it will) I've compared my config.m4 to php's ext/bz2 and find no significant difference, but if I: phpize ./configure make to the bz2 module I find it also only makes .la and .a So what am I doing wrong? Sam