Implement support for importing installed libraries

1 files changed, 35 insertions, 0 deletions

diff --git a/build/cxx/utility.txx b/build/cxx/utility.txx
new file mode 100644
index 0000000..7d9d686
--- /dev/null
+++ b/build/cxx/utility.txx
@@ -0,0 +1,35 @@
+// file      : build/cxx/utility.txx -*- C++ -*-
+// copyright : Copyright (c) 2014-2015 Code Synthesis Ltd
+// license   : MIT; see accompanying LICENSE file
+
+using namespace std;
+
+namespace build
+{
+  namespace cxx
+  {
+    template <typename T>
+    void
+    append_std (cstrings& args, T& t, std::string& s)
+    {
+      if (auto val = t["cxx.std"])
+      {
+        const std::string& v (val.template as<const string&> ());
+
+        // Translate 11 to 0x and 14 to 1y for compatibility with
+        // older versions of the compiler.
+        //
+        s = "-std=c++";
+
+        if (v == "11")
+          s += "0x";
+        else if (v == "14")
+          s += "1y";
+        else
+          s += v;
+
+        args.push_back (s.c_str ());
+      }
+    }
+  }
+}