Re: [PATCH] Makefile: fix misdetection of relative pathnames

[Johannes Sixt <j.sixt@viscovery.net>]

Junio C Hamano schrieb:
> -ifeq ($(abspath $(template_dir)),$(template_dir))
> +ifneq ($(filter /%,$(firstword $(template_dir))),)

> -ifeq ($(abspath $(gitexecdir)),$(gitexecdir))
> +ifneq ($(filter /%,$(firstword $(gitexecdir))),)

No, this does not work on Windows for the use-case that this check is
intended for, namely when the user specifies an *absolute* path for
gitexecdir and/or template_dir in config.mak [*].

Neither does the version that uses $(abspath ...)! Because $(abspath ...)
does not work in our msysgit environment (that has GNU make 3.79.1).

That said, I don't think it's worth to cater for this use-case, precisely
because we want to *avoid* absolute paths on Windows anyway, and apply the
change that you proposed here.

[*] The reason it does not work is that we cannot use MSYS-style absolute
paths /c/Foo/Bar because the paths will be interpreted by git, which does
not understand them; the user must specify drive-letter absolute paths
c:/Foo/Bar, but the check does not catch them.

-- Hannes