fix: fallback to a known mirror for GNU tools

Author: mayeut

docker/build_scripts/install-autoconf.sh

@@ -30,7 +30,9 @@ if autoconf --version > /dev/null 2>&1; then
 fi
 
 
-fetch_source "${AUTOCONF_ROOT}.tar.gz" "${AUTOCONF_DOWNLOAD_URL}"
+if ! fetch_source "${AUTOCONF_ROOT}.tar.gz" "${AUTOCONF_DOWNLOAD_URL}"; then
+	fetch_source "${AUTOCONF_ROOT}.tar.gz" "${AUTOCONF_DOWNLOAD_URL/ftpmirror.gnu.org/mirrors.ocf.berkeley.edu}";
+fi
 check_sha256sum "${AUTOCONF_ROOT}.tar.gz" "${AUTOCONF_HASH}"
 tar -zxf "${AUTOCONF_ROOT}.tar.gz"
 pushd "${AUTOCONF_ROOT}"

docker/build_scripts/install-automake.sh

@@ -32,7 +32,9 @@ fi
 
 SYSTEM_ACLOCAL="$(which aclocal)"
 
-fetch_source "${AUTOMAKE_ROOT}.tar.gz" "${AUTOMAKE_DOWNLOAD_URL}"
+if ! fetch_source "${AUTOMAKE_ROOT}.tar.gz" "${AUTOMAKE_DOWNLOAD_URL}"; then
+	fetch_source "${AUTOMAKE_ROOT}.tar.gz" "${AUTOMAKE_DOWNLOAD_URL/ftpmirror.gnu.org/mirrors.ocf.berkeley.edu}";
+fi
 check_sha256sum "${AUTOMAKE_ROOT}.tar.gz" "${AUTOMAKE_HASH}"
 tar -zxf "${AUTOMAKE_ROOT}.tar.gz"
 pushd "${AUTOMAKE_ROOT}"

docker/build_scripts/install-libtool.sh

@@ -15,7 +15,9 @@ source "${MY_DIR}/build_utils.sh"
 check_var "${LIBTOOL_ROOT}"
 check_var "${LIBTOOL_HASH}"
 check_var "${LIBTOOL_DOWNLOAD_URL}"
-fetch_source "${LIBTOOL_ROOT}.tar.gz" "${LIBTOOL_DOWNLOAD_URL}"
+if ! fetch_source "${LIBTOOL_ROOT}.tar.gz" "${LIBTOOL_DOWNLOAD_URL}"; then
+	fetch_source "${LIBTOOL_ROOT}.tar.gz" "${LIBTOOL_DOWNLOAD_URL/ftpmirror.gnu.org/mirrors.ocf.berkeley.edu}";
+fi
 check_sha256sum "${LIBTOOL_ROOT}.tar.gz" "${LIBTOOL_HASH}"
 tar -zxf "${LIBTOOL_ROOT}.tar.gz"
 pushd "${LIBTOOL_ROOT}"