Due reasons explained here:
https://bugs.gentoo.org/show_bug.cgi?id=462052#c1
We would like to start a process of simplifying dotnet maintained
eclasses a lot because they are currently really hard to maintain. As a
start point, we will need a simple eclass simply to export some
variables needed to build most of dotnet packages. That variables are
currently being exported by mono.eclass, the idea would be to split the
"environment exporting" part out of it (and deprecate current
mono.eclass in the future)
# Copyright 1999-2013 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $
# @ECLASS: mono-env.eclass
# @MAINTAINER:
# dot...@gentoo.org
# @BLURB: Set environment variables commonly used by dotnet packages.
# @DESCRIPTION:
# Set environment variables commonly used by dotnet packages.
# >=mono-0.92 versions using mcs -pkg:foo-sharp require shared memory, so we
set the
# shared dir to ${T} so that ${T}/.wapi can be used during the install process.
export MONO_SHARED_DIR="${T}"
# export more variables as needed by other dotnet packages
export MONO_REGISTRY_PATH="${T}/registry"
export XDG_DATA_HOME="${T}/data"
export HOME="${T}/home"
# Building mono, nant and many other dotnet packages is known to fail if LC_ALL
# variable is not set to C. To prevent this all mono related packages will be
# build with LC_ALL=C (see bugs #146424, #149817)
export LC_ALL=C
# Monodevelop-using applications need this to be set or they will try to create
config
# files in the user's ~ dir.
export XDG_CONFIG_HOME="${T}"
# Fix bug 83020:
# "Access Violations Arise When Emerging Mono-Related Packages with
MONO_AOT_CACHE"
unset MONO_AOT_CACHE
