From e1900dbb63610e54fadd2c2fea6a88b52bb98813 Mon Sep 17 00:00:00 2001
From: Jamie Hewland <jhewland@gmail.com>
Date: Thu, 1 Mar 2018 09:23:41 +0200
Subject: [PATCH] Alpine: Add libs for nis module (Alpine 3.7/Python 3.7 only)

---
 3.7-rc/alpine3.7/Dockerfile | 2 ++
 Dockerfile-alpine.template  | 2 ++
 update.sh                   | 7 +++++++
 3 files changed, 11 insertions(+)

diff --git a/3.7-rc/alpine3.7/Dockerfile b/3.7-rc/alpine3.7/Dockerfile
index e6d111eec..8b57b214b 100644
--- a/3.7-rc/alpine3.7/Dockerfile
+++ b/3.7-rc/alpine3.7/Dockerfile
@@ -46,6 +46,8 @@ RUN set -ex \
 		gdbm-dev \
 		libc-dev \
 		libffi-dev \
+		libnsl-dev \
+		libtirpc-dev \
 		linux-headers \
 		make \
 		ncurses-dev \
diff --git a/Dockerfile-alpine.template b/Dockerfile-alpine.template
index 1d9dc3247..f2b12c510 100644
--- a/Dockerfile-alpine.template
+++ b/Dockerfile-alpine.template
@@ -40,6 +40,8 @@ RUN set -ex \
 		gdbm-dev \
 		libc-dev \
 		libffi-dev \
+		libnsl-dev \
+		libtirpc-dev \
 		linux-headers \
 		make \
 		ncurses-dev \
diff --git a/update.sh b/update.sh
index 6264c53ba..427be67ca 100755
--- a/update.sh
+++ b/update.sh
@@ -158,6 +158,13 @@ for version in "${versions[@]}"; do
 			sed -ri -e 's/libressl/openssl/g' "$dir/Dockerfile"
 		fi
 
+		# Libraries to build the nis module available in Alpine 3.7, but also require this patch:
+		# https://bugs.python.org/issue32521
+		# TODO: Remove Python version check once 2.7 and 3.6 have the patch
+		if [[ "$variant" == alpine* ]] && [[ "$variant" != alpine3.7 || "$version" != 3.7* ]]; then
+			sed -ri -e '/libnsl-dev/d' -e '/libtirpc-dev/d' "$dir/Dockerfile"
+		fi
+
 		case "$v" in
 			wheezy/slim|jessie/slim)
 				sed -ri \