2 files changed, 13 insertions, 14 deletions

diff --git a/build/cxx/module.cxx b/build/cxx/module.cxx
index 846e324..3e0101f 100644
--- a/build/cxx/module.cxx
+++ b/build/cxx/module.cxx
@@ -108,6 +108,8 @@ namespace build
       // is important to distinguish between the "configured as
       // unspecified" and "not configured" cases).
       //
+      // We also merge them into the corresponding cxx.* variables.
+      //
       {
         auto v (root["config.cxx.poptions"]);
 
@@ -115,6 +117,8 @@ namespace build
         {
           if (v.belongs (*global_scope))
             root.assign ("config.cxx.poptions") = v;
+
+          root.append ("cxx.poptions") += v;
         }
         else
           root.assign ("config.cxx.poptions") = nullptr;
@@ -127,6 +131,8 @@ namespace build
         {
           if (v.belongs (*global_scope))
             root.assign ("config.cxx.coptions") = v;
+
+          root.append ("cxx.coptions") += v;
         }
         else
           root.assign ("config.cxx.coptions") = nullptr;
@@ -139,6 +145,8 @@ namespace build
         {
           if (v.belongs (*global_scope))
             root.assign ("config.cxx.loptions") = v;
+
+          root.append ("cxx.loptions") += v;
         }
         else
           root.assign ("config.cxx.loptions") = nullptr;
@@ -151,6 +159,8 @@ namespace build
         {
           if (v.belongs (*global_scope))
             root.assign ("config.cxx.libs") = v;
+
+          root.append ("cxx.libs") += v;
         }
         else
           root.assign ("config.cxx.libs") = nullptr;
diff --git a/build/cxx/rule.cxx b/build/cxx/rule.cxx
index 963ecb1..65616f8 100644
--- a/build/cxx/rule.cxx
+++ b/build/cxx/rule.cxx
@@ -203,19 +203,16 @@ namespace build
 
       vector<const char*> args {cxx.c_str ()};
 
-      append_options (args, rs, "config.cxx.poptions");
       append_options (args, t, "cxx.poptions");
 
       // @@ Some C++ options (e.g., -std, -m) affect the preprocessor.
       // Or maybe they are not C++ options? Common options?
       //
-      append_options (args, rs, "config.cxx.coptions");
+      append_options (args, t, "cxx.coptions");
 
       string std; // Storage.
       append_std (args, t, std);
 
-      append_options (args, t, "cxx.coptions");
-
       if (t.is_a<objso> ())
         args.push_back ("-fPIC");
 
@@ -362,16 +359,12 @@ namespace build
 
       vector<const char*> args {cxx.c_str ()};
 
-      append_options (args, rs, "config.cxx.poptions");
       append_options (args, t, "cxx.poptions");
-
-      append_options (args, rs, "config.cxx.coptions");
+      append_options (args, t, "cxx.coptions");
 
       string std; // Storage.
       append_std (args, t, std);
 
-      append_options (args, t, "cxx.coptions");
-
       if (t.is_a<objso> ())
         args.push_back ("-fPIC");
 
@@ -717,20 +710,17 @@ namespace build
 
       vector<const char*> args {cxx.c_str ()};
 
-      append_options (args, rs, "config.cxx.coptions");
+      append_options (args, t, "cxx.coptions");
 
       string std; // Storage.
       append_std (args, t, std);
 
-      append_options (args, t, "cxx.coptions");
-
       if (so)
         args.push_back ("-shared");
 
       args.push_back ("-o");
       args.push_back (relt.string ().c_str ());
 
-      append_options (args, rs, "config.cxx.loptions");
       append_options (args, t, "cxx.loptions");
 
       for (target* pt: t.prerequisites)
@@ -753,7 +743,6 @@ namespace build
         args.push_back (relo.back ().string ().c_str ());
       }
 
-      append_options (args, rs, "config.cxx.libs");
       append_options (args, t, "cxx.libs");
 
       args.push_back (nullptr);