dune: added package for NECSAVE.

rules/dune/default.bash

@@ -0,0 +1,37 @@
+version=\
+(
+    'master'
+)
+
+requires=\
+(
+    'cmake/host'
+)
+
+download()
+{
+    git clone "git@github.com:LSTS/dune.git" dune &&
+        cd dune && git checkout "$version" && cd - &&
+        git clone "git@git.lsts.pt:dune-private.git" dune/private &&
+        cd dune/private && git checkout "$version" && cd -
+}
+
+configure()
+{
+    $cmd_mkdir build &&
+        cd build &&
+        cmake \
+            -DCMAKE_INSTALL_PREFIX="$cfg_dir_toolchain_sysroot/usr" \
+            -DCROSS="$cmd_target_cc" \
+            ../dune
+}
+
+build()
+{
+    $cmd_make -C build
+}
+
+host_install()
+{
+    $cmd_make -C build install
+}