BUILD: extend travis-ci matrix
added openssl-1.0.2, 1.1.0, 1.1.1, libressl-2.7.5, 2.8.3, 2.9.1
added linux-ppc64le image
diff --git a/scripts/build-ssl.sh b/scripts/build-ssl.sh
new file mode 100755
index 0000000..4898724
--- /dev/null
+++ b/scripts/build-ssl.sh
@@ -0,0 +1,77 @@
+#!/bin/sh
+set -eux
+
+download_openssl () {
+ if [ ! -f "download-cache/openssl-${OPENSSL_VERSION}.tar.gz" ]; then
+ wget -P download-cache/ \
+ "https://www.openssl.org/source/openssl-${OPENSSL_VERSION}.tar.gz"
+ fi
+}
+
+build_openssl_linux () {
+ (
+ cd "openssl-${OPENSSL_VERSION}/"
+ ./config shared --prefix="${HOME}/opt" --openssldir="${HOME}/opt" -DPURIFY
+ make all install_sw
+ )
+}
+
+build_openssl_osx () {
+ (
+ cd "openssl-${OPENSSL_VERSION}/"
+ ./Configure darwin64-x86_64-cc shared \
+ --prefix="${HOME}/opt" --openssldir="${HOME}/opt" -DPURIFY
+ make depend all install_sw
+ )
+}
+
+build_openssl () {
+ if [ "$(cat ${HOME}/opt/.openssl-version)" != "${OPENSSL_VERSION}" ]; then
+ tar zxf "download-cache/openssl-${OPENSSL_VERSION}.tar.gz"
+ if [ "${TRAVIS_OS_NAME}" = "osx" ]; then
+ build_openssl_osx
+ elif [ "${TRAVIS_OS_NAME}" = "linux" ]; then
+ build_openssl_linux
+ fi
+ echo "${OPENSSL_VERSION}" > "${HOME}/opt/.openssl-version"
+ fi
+}
+
+download_libressl () {
+ if [ ! -f "download-cache/libressl-${LIBRESSL_VERSION}.tar.gz" ]; then
+ wget -P download-cache/ \
+ "https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-${LIBRESSL_VERSION}.tar.gz"
+ fi
+}
+
+build_libressl() {
+ (
+ cd "libressl-${LIBRESSL_VERSION}/"
+ ./configure --prefix="${HOME}/opt"
+ make all install
+ )
+}
+
+build_libressl () {
+ if [ "$(cat ${HOME}/opt/.libressl-version)" != "${LIBRESSL_VERSION}" ]; then
+ tar zxf "download-cache/libressl-${LIBRESSL_VERSION}.tar.gz"
+ (
+ cd "libressl-${LIBRESSL_VERSION}/"
+ ./configure --prefix="${HOME}/opt"
+ make all install
+ )
+ echo "${LIBRESSL_VERSION}" > "${HOME}/opt/.libressl-version"
+ fi
+}
+
+if [ ! -z ${LIBRESSL_VERSION+x} ]; then
+ download_libressl
+ build_libressl
+fi
+
+if [ ! -z ${OPENSSL_VERSION+x} ]; then
+ download_openssl
+ build_openssl
+fi
+
+