From: Junio C Hamano <gitster@pobox.com>
Date: Wed, 18 Jan 2017 23:12:16 +0000 (-0800)
Subject: Merge branch 'bw/realpath-wo-chdir'
X-Git-Tag: v2.12.0-rc0~61
X-Git-Url: https://git.lorimer.id.au/gitweb.git/diff_plain/1c16df23b19e8d37d896e68c92d8341d6e60b4dc?hp=1c16df23b19e8d37d896e68c92d8341d6e60b4dc

Merge branch 'bw/realpath-wo-chdir'

The implementation of "real_path()" was to go there with chdir(2)
and call getcwd(3), but this obviously wouldn't be usable in a
threaded environment.  Rewrite it to manually resolve relative
paths including symbolic links in path components.

* bw/realpath-wo-chdir:
real_path: set errno when max number of symlinks is exceeded
real_path: prevent redefinition of MAXSYMLINKS
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