Backed out -rdynamic linker option. It seems to be GNU ld specific.

Need a platform independant way of exporting symbols for dlopen().
Perhaps this is only needed for certain platforms anyway...

source/configure.in

@@ -228,7 +228,8 @@ AC_CHECK_TYPE(wchar_t, unsigned short)
 AC_CHECK_LIB(cups,httpConnect)
 
 # we need libdl for PAM and the new VFS code
-AC_CHECK_LIB(dl,main, [LDFLAGS="$LDFLAGS -rdynamic"; LIBS="$LIBS -ldl"])
+AC_CHECK_LIB(dl, dlopen, [LIBS="$LIBS -ldl";
+	AC_DEFINE(HAVE_LIBDL)])
 
 AC_CACHE_CHECK([for sig_atomic_t type],samba_cv_sig_atomic_t, [
     AC_TRY_COMPILE([