From 0d6f835ffb582296d24a8d1dd479e2703e075ee3 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Fri, 18 Oct 2019 14:05:03 +0200
Subject: Add ability to specify "compiler mode" options as part of
 config.{c,cxx}

Such options are (normally) not overridden by buildfiles and are passed
last (after cc.coptions and {c,cxx}.coptions) in the resulting command
lines. They are also cross-hinted between config.c and config.cxx. For
example:

$ b config.cxx="g++ -m64"
---
 libbuild2/cc/init.cxx | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'libbuild2/cc/init.cxx')

diff --git a/libbuild2/cc/init.cxx b/libbuild2/cc/init.cxx
index f45a1bf..ac5823b 100644
--- a/libbuild2/cc/init.cxx
+++ b/libbuild2/cc/init.cxx
@@ -105,6 +105,7 @@ namespace build2
       v.insert<string>         ("config.cc.id");
       v.insert<string>         ("config.cc.hinter"); // Hinting module.
       v.insert<string>         ("config.cc.pattern");
+      v.insert<strings>        ("config.cc.mode");
       v.insert<target_triplet> ("config.cc.target");
 
       // Compiler runtime and C standard library.
@@ -209,6 +210,15 @@ namespace build2
           cast_empty<string> (h["config.cc.pattern"]);
       }
 
+      // config.cc.mode
+      //
+      {
+        // This value could be hinted.
+        //
+        rs.assign<strings> ("cc.mode") =
+          cast_empty<strings> (h["config.cc.mode"]);
+      }
+
       // cc.runtime
       // cc.stdlib
       //
-- 
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