Re: Install-prefix when building should not be hardcoded

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Thanks for the hint to DESTDIR, it helps!

Nevertheless, I would like to point towards the following section in
the [MAKEFILE][1]:
```Makefile
# Among the variables below, these:
# gitexecdir
# ...
# can be specified as a relative path some/where/else;
# this is interpreted as relative to $(prefix) and "git" at
# runtime figures out where they are based on the path to the executable.
# ...
# This can help installing the suite in a relocatable way.
# ...
gitexecdir = libexec/git-core
```

[1]: https://github.com/git/git/blob/master/Makefile#L525-L547

On Tue, Oct 4, 2022 at 9:57 AM Đoàn Trần Công Danh <congdanhqx@xxxxxxxxx> wrote:
>
> On 2022-10-04 09:38:24+0200, darkdragon <darkdragon-001@xxxxxx> wrote:
> > Even though in Makefile, it is stated that git will figure out
> > gitexecdir at runtime based on the path to the executable, there are
> > many output files where $(prefix) will be hardcoded. Even git
> > --exec-path will print out $(compile_prefix)/libexec/git-core instead
> > of using run_prefix.
>
> I'm not sure about this part.
>
> > Example: We are building git in Docker at a separate stage to /deploy
> > (since /usr/local is populated with our compiler toolchain). The final
> > image is assembled by copying the contents of /deploy to /usr/local.
> > Commands like "git submodule" will fail because of the wrong git exec
> > path. Searching via "grep -r /deploy" in /deploy after make install
> > yields many results.
>
> But you may be interested in $(DESTDIR)
>
>         make prefix=/usr/local all
>         make prefix=/usr/local DESTDIR=/deploy install
>
> Does that work for you?
>
> --
> Danh




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