Add libsodium source

libsodium-1.0.18-RELEASE/autogen.sh

@@ -0,0 +1,53 @@
+#! /bin/sh
+
+if glibtoolize --version >/dev/null 2>&1; then
+  LIBTOOLIZE='glibtoolize'
+else
+  LIBTOOLIZE='libtoolize'
+fi
+
+command -v command >/dev/null 2>&1 || {
+  echo "command is required, but wasn't found on this system"
+  exit 1
+}
+
+command -v $LIBTOOLIZE >/dev/null 2>&1 || {
+  echo "libtool is required, but wasn't found on this system"
+  exit 1
+}
+
+command -v autoconf >/dev/null 2>&1 || {
+  echo "autoconf is required, but wasn't found on this system"
+  exit 1
+}
+
+command -v automake >/dev/null 2>&1 || {
+  echo "automake is required, but wasn't found on this system"
+  exit 1
+}
+
+if autoreconf --version >/dev/null 2>&1; then
+  autoreconf -ivf
+else
+  $LIBTOOLIZE &&
+    aclocal &&
+    automake --add-missing --force-missing --include-deps &&
+    autoconf
+fi
+
+[ -z "$DO_NOT_UPDATE_CONFIG_SCRIPTS" ] &&
+  command -v curl >/dev/null 2>&1 && {
+  echo "Downloading config.guess and config.sub..."
+
+  curl -sL -o config.guess \
+    'https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD' &&
+    mv -f config.guess build-aux/config.guess
+
+  curl -sL -o config.sub \
+    'https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD' &&
+    mv -f config.sub build-aux/config.sub
+
+  echo "Done."
+}
+
+rm -f config.guess config.sub