Re: [Qemu-devel] [PATCH] iotests: Use configured python

[Markus Armbruster]

Markus Armbruster <address@hidden> writes:

[...]
> The problem is including generated bits, namely results of configure,
> into source files.
>
> The Autoconf way is to substitute placeholders in FOO.in producing FOO.
>
> When you want to limit .in contents as much as possible, you factor out
> the stuff that needs substitutions into some SUB.in, which you then
> include into FOO.  Requires a suitable include mechanism.  In shell,
> builtin source.
>
> But then you need to find SUB from FOO.  I've seen two ways used:
>
> 1. Assume SUB is in the current directory.  Link FOO into the build tree
> to make it so.
>
> 2. Require FOO to be run in a way that lets it find its source
> directory.  If whatever runs FOO puts the full path into argv[0], you
> can use that.  Else, require a suitable argument or environment
> variable.

Uh, I left out some "obvious" details here.  Revert the role of FOO and
SUB.  Generate FOO from FOO.in into the build tree, include the real
meat from SUB.