Hello!

On Tue, Nov 26, 2019 at 04:10:28PM -0500, ptcell wrote:

> If I build a dynamic module against, say nginx 1.12.2 with `--with-compat`,
> will it work with, say nginx 1.12.1 (assuming --with-compat all around)
>
>
> I assume not, because I found this in ngx_module.c, separate from the
> signature check. nginx_version has the minor version in it.

Your assumption is correct.

ABI stability is not guranteed on version changes, even minor,
hence modules build for different versions are not compatible.
Version is checked to explicitly prevent loading of incompatible
modules.

--
Maxim Dounin
http://mdounin.ru/
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