Add my helper build scripts for building custom binaries.

Allows building Kore with several different component versions.

Eg:
	$ ./build-kore.sh 1.1.1h 3.9.0 7.72.0 1.41.0

	Will build Kore with OpenSSL 1.1.1h, Python 3.9.0, Curl 7.72.0
	and nghttp2 (for curl) 1.41.0

misc/kore-build/build-curl.sh

@@ -0,0 +1,19 @@
+#!/bin/sh
+
+set -e
+
+. ./env.sh
+
+if [ $# -ne 3 ]; then
+	echo "Usage: build-curl.sh [release] [openssl] [nghttp2]"
+	exit 1
+fi
+
+export PKG_CONFIG="pkg-config --static"
+export PKG_CONFIG_PATH="$FAKEROOT/openssl-$2/lib/pkgconfig:$FAKEROOT/nghttp2-$3/lib/pkgconfig"
+
+NAME=curl-$1
+
+fetch "https://curl.haxx.se/download/$NAME.tar.gz" $NAME
+
+default_build $NAME --enable-shared=no

misc/kore-build/build-kodev.sh

@@ -0,0 +1,16 @@
+#!/bin/sh
+
+set -e
+
+. /home/build/env.sh
+
+if [ $# -ne 4 ]; then
+	echo "Usage: build-kore.sh [openssl] [python] [curl] [nghttp2]"
+	exit 1
+fi
+
+export PATH=$FAKEROOT/Python-$2/bin:$FAKEROOT/curl-$3/bin:$PATH
+export OPENSSL_PATH=$FAKEROOT/openssl-$1
+
+kodev clean
+kodev build

misc/kore-build/build-kore.sh

@@ -0,0 +1,67 @@
+#!/bin/sh
+
+set -e
+
+if [ $# -ne 4 ]; then
+	echo "Usage: build-kore.sh [openssl] [python] [curl] [nghttp2]"
+	exit 1
+fi
+
+# Set ROOT based on the versions given.
+VERSION=kore_ossl-$1_python-$2_curl-$3_nghttp2-$4
+ROOT=`pwd`/$VERSION
+
+# Pull in the rest of the functions.
+. ./helpers.sh
+
+OPENSSL=openssl-$1
+PYTHON=Python-$2
+CURL=curl-$3
+NGHTTP2=nghttp2-$4
+
+# Build OpenSSL
+echo "Building $OPENSSL"
+fetch "https://www.openssl.org/source/$OPENSSL.tar.gz" $OPENSSL
+build $OPENSSL ./config no-shared --prefix=$FAKEROOT/$OPENSSL
+
+# Build Python
+echo "Building $PYTHON"
+fetch "https://www.python.org/ftp/python/$2/$PYTHON.tgz" $PYTHON
+default_build $PYTHON
+
+# Build nghttp2
+echo "Building $NGHTTP2"
+fetch \
+    "https://github.com/nghttp2/nghttp2/releases/download/v$4/$NGHTTP2.tar.gz" \
+    $NGHTTP2
+
+default_build $NGHTTP2 --enable-lib-only --prefix=$FAKEROOT/$NGHTTP2 \
+    --enable-shared=no
+
+# Build curl
+echo "Building $CURL"
+export PKG_CONFIG="pkg-config --static"
+export PKG_CONFIG_PATH="$FAKEROOT/$OPENSSL/lib/pkgconfig:$FAKEROOT/$NGHTTP2/lib/pkgconfig"
+
+fetch "https://curl.haxx.se/download/$CURL.tar.gz" $CURL
+default_build $CURL --enable-shared=no
+
+# Now we can build kore.
+unset PKG_CONFIG
+unset PKG_CONFIG_PATH
+
+export PATH=$FAKEROOT/bin:$PATH
+export OPENSSL_PATH=$FAKEROOT/$OPENSSL
+
+cd $ROOT
+
+if [ ! -d kore ]; then
+	git clone https://git.kore.io/kore.git
+fi
+
+pushd kore
+make clean
+LDFLAGS=-L$FAKEROOT/$NGHTTP2/lib make PYTHON=1 CURL=1 ACME=1
+
+mv kore $ROOT/kore.bin
+popd

misc/kore-build/build-nghttp2.sh

@@ -0,0 +1,16 @@
+#!/bin/sh
+
+set -e
+
+. ./env.sh
+
+if [ $# -ne 1 ]; then
+	echo "Usage: build-nghttp2.sh [release]"
+	exit 1
+fi
+
+NAME=nghttp2-$1
+
+fetch "https://github.com/nghttp2/nghttp2/releases/download/v$1/$NAME.tar.gz" $NAME
+
+default_build $NAME --enable-lib-only --prefix=$FAKEROOT/$NAME --enable-shared=no

misc/kore-build/build-openssl.sh

@@ -0,0 +1,16 @@
+#!/bin/sh
+
+set -e
+
+. ./env.sh
+
+if [ $# -ne 1 ]; then
+	echo "Usage: build-openssl.sh [release]"
+	exit 1
+fi
+
+NAME=openssl-$1
+
+fetch "https://www.openssl.org/source/$NAME.tar.gz" $NAME
+
+build $NAME ./config no-shared --prefix=$FAKEROOT/$NAME

misc/kore-build/build-python.sh

@@ -0,0 +1,17 @@
+#!/bin/sh
+
+set -e
+set -x
+
+. ./env.sh
+
+if [ $# -ne 1 ]; then
+	echo "Usage: build-python.sh [release]"
+	exit 1
+fi
+
+NAME=Python-$1
+
+fetch "https://www.python.org/ftp/python/$1/$NAME.tgz" $NAME
+
+default_build $NAME

misc/kore-build/helpers.sh

@@ -0,0 +1,72 @@
+if [ -z "$ROOT" ]; then
+	echo "No ROOT set"
+	exit 1
+fi
+
+SOURCES=sources
+BUILD=$ROOT/build
+FAKEROOT=$ROOT/fakeroot
+
+LASTDIR=`pwd`
+
+pushd() {
+	LASTDIR=`pwd`
+	cd $1
+}
+
+popd() {
+	cd $LASTDIR
+}
+
+fetch() {
+	url=$1
+	name=$2
+
+	if [ -f $SOURCES/$name.tar.gz ]; then
+		return
+	fi
+
+	curl -L "$url" > $SOURCES/$name.tar.gz
+}
+
+default_build() {
+	name=$1
+	shift
+	config=$*
+
+	build $name ./configure --prefix=$FAKEROOT/$NAME $config
+}
+
+build() {
+	name=$1
+	shift
+	configcmd=$*
+
+	if [ -f $BUILD/$name/.built ]; then
+		return
+	fi
+
+	rm -rf $BUILD/$name
+	rm -rf $FAKEROOT/$name
+
+	tar -zvxf $SOURCES/$name.tar.gz -C $BUILD
+
+	pushd $BUILD/$name
+	mkdir -p $FAKEROOT/$name
+
+	$configcmd
+
+	make -j
+	make install
+	popd
+
+	touch $BUILD/$name/.built
+}
+
+setup() {
+	mkdir -p $BUILD
+	mkdir -p $SOURCES
+	mkdir -p $FAKEROOT
+}
+
+setup