1 files changed, 17 insertions, 0 deletions
diff --git a/src/libexpr/common-opts.hh b/src/libexpr/common-opts.hh
new file mode 100644
index 000000000..fb9659cdc
--- /dev/null
+++ b/src/libexpr/common-opts.hh
@@ -0,0 +1,17 @@
+#ifndef __COMMON_OPTS_H
+#define __COMMON_OPTS_H
+
+#include "eval.hh"
+
+
+namespace nix {
+
+/* Some common option parsing between nix-env and nix-instantiate. */
+bool parseOptionArg(const string & arg, Strings::iterator & i,
+    const Strings::iterator & argsEnd, EvalState & state,
+    ATermMap & autoArgs);
+    
+}
+
+
+#endif /* !__COMMON_OPTS_H */