On Tue, 2013-01-08 at 22:37 -0500, Tom Lane wrote:
> We could try adding an AC_TRY_LINK test using perl_embed_ldflags,
> but given the weird stuff happening to redefine that value on Windows
> in plperl/GNUmakefile I think there's a serious risk of breaking
> Cygwin builds. Since I lack access to either Cygwin or a platform on
> which there's a problem today, I'm not going to be the one to mess
> with it.
For these and similar reasons, I think it's best not to mess with this
too much. It should fail where it actually fails. We shouldn't be
duplicating that logic in a remote place to predict that something will
fail later. In some cases, this is rather safe and easy and useful as a
service to the user, but once it gets slightly complicated, it can only
go wrong.