chore: add alternative script

.github/workflows/master.yml

@@ -137,8 +137,8 @@ jobs:
 
       - name: Compile openssl 1.0.2p from source
         run: |
-          chmod +x ./docker/cross-compilation/openssl.sh
-          sh ./docker/cross-compilation/openssl.sh linux-aarch64 aarch64-linux-gnu-
+          chmod +x ./docker/cross-compilation/openssl-macos.sh
+          sh ./docker/cross-compilation/openssl-macos.sh linux-aarch64 aarch64-linux-gnu-
 
       - name: Building Macos Binary
         run: MACOSX_DEPLOYMENT_TARGET=10.14 OPENSSL_STATIC=1 OPENSSL_DIR="/openssl" cargo build --release -p witnet -p witnet_toolkit

docker/cross-compilation/openssl-macos.sh

@@ -0,0 +1,47 @@
+# Copyright 2016-2019 Jorge Aparicio, Marco A L Barbosa & bgermann.
+# 
+# https://github.com/rust-embedded/cross/blob/master/docker/openssl.sh
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+# 
+# 	http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -ex
+
+main() {
+    local version=1.0.2p
+    local os=$1 \
+          triple=$2
+
+    td=$(mktemp -d)
+
+    pushd $td
+    wget https://www.openssl.org/source/openssl-$version.tar.gz
+    tar --strip-components=1 -xzvf openssl-$version.tar.gz
+    AR=${triple}ar CC=${triple}gcc ./Configure \
+      --prefix=/openssl \
+      no-dso \
+      $os \
+      -fPIC \
+      ${@:3}
+    nice make -j$(nproc)
+    make install
+
+    # clean up
+    apt-get purge --auto-remove -y ${purge_list[@]}
+
+    popd
+
+    rm -rf $td
+    rm $0
+}
+
+main "${@}"