From 421d0a4d1a7786e90407072b378cc060d325907d Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Fri, 23 Aug 2019 09:46:11 +0200
Subject: Variables

---
 libbuild2/target.cxx | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

(limited to 'libbuild2/target.cxx')

diff --git a/libbuild2/target.cxx b/libbuild2/target.cxx
index 5e6db5a..9d81dee 100644
--- a/libbuild2/target.cxx
+++ b/libbuild2/target.cxx
@@ -290,6 +290,34 @@ namespace build2
     }
   }
 
+  // include()
+  //
+  include_type
+  include_impl (action a,
+                const target& t,
+                const string& v,
+                const prerequisite& p,
+                const target* m)
+  {
+    context& ctx (t.ctx);
+
+    include_type r (false);
+
+    if      (v == "false") r = include_type::excluded;
+    else if (v == "adhoc") r = include_type::adhoc;
+    else if (v == "true")  r = include_type::normal;
+    else
+      fail << "invalid " << ctx.var_include->name << " variable value "
+           << "'" << v << "' specified for prerequisite " << p;
+
+    // Call the meta-operation override, if any (currently used by dist).
+    //
+    if (auto f = ctx.current_mif->include)
+      r = f (a, t, prerequisite_member {p, m}, r);
+
+    return r;
+  }
+
   // target_set
   //
   const target* target_set::
-- 
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