Re: TRANSFORM = s,x,x,

[Hongyi Zhao]

On Sun, Nov 14, 2021 at 4:52 PM Kévin Le Gouguec
<kevin.legouguec@gmail.com> wrote:
>
> Hongyi Zhao <hongyi.zhao@gmail.com> writes:
>
> > Any hints for this problem?
>
> Not sure about actual use-cases, but if you dig into Makefile.in, you'll
> see that TRANSFORM is set from program_transform_name.  Jumping into the
> configure script, this seems to be set only when --program-prefix or
> --program-suffix are provided.

I confirmed your statement with the following supplementary information:

emacs.git$ rg -A1 -uu  'test.*program_(pre|suf)fix'  configure
4352:test "$program_prefix" != NONE &&
4353-  program_transform_name="s&^&$program_prefix&;$program_transform_name"
--
4355:test "$program_suffix" != NONE &&
4356-  program_transform_name="s&\$&$program_suffix&;$program_transform_name"


> No idea if this is generic autotools stuff, and/or if this is relevant
> to Emacs 🤷