From f3562be2bbdcf4bd4ccf17bf453dcc23dc25c639 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lucio=20Andr=C3=A9s=20Illanes=20Albornoz=20=28arab=2C=20vx?=
 =?UTF-8?q?p=29?= <lucio@lucioillanes.de>
Date: Tue, 30 May 2017 20:41:26 +0000
Subject: build.sh, etc/build.usage: adds -[46]: force IPv[46] when
 downloading. subr/pre_setup_env.subr: prepend -4 or -6 to ${WGET_ARGS} when
 -[46] was specified.

---
 subr/pre_setup_env.subr | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'subr')

diff --git a/subr/pre_setup_env.subr b/subr/pre_setup_env.subr
index b8e1faa6..d5de2772 100644
--- a/subr/pre_setup_env.subr
+++ b/subr/pre_setup_env.subr
@@ -11,6 +11,11 @@ pre_setup_env() {
 	for __ in ${HOME}/midipix_build.vars ../midipix_build.vars ./vars/build.vars; do
 		[ -e ${__} ] && . ${__};
 	done;
+	if [ ${ARG_IPV4_ONLY:-0} -eq 1 ]; then
+		WGET_ARGS="-4${WGET_ARGS:+ ${WGET_ARGS}}";
+	elif [ ${ARG_IPV6_ONLY:-0} -eq 1 ]; then
+		WGET_ARGS="-6${WGET_ARGS:+ ${WGET_ARGS}}";
+	fi;
 	for __ in $(export | sed -e 's/^export //' -e 's/=.*$//'); do
 		if ! lmatch "${CLEAR_ENV_VARS_EXCEPT}" " " "${__}"; then
 			unset "${__}";
-- 
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