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/utility.hxx | 29 +++++++++++++++++++----------
 1 file changed, 19 insertions(+), 10 deletions(-)

(limited to 'libbuild2/utility.hxx')

diff --git a/libbuild2/utility.hxx b/libbuild2/utility.hxx
index beacd2f..0422786 100644
--- a/libbuild2/utility.hxx
+++ b/libbuild2/utility.hxx
@@ -607,23 +607,32 @@ namespace build2
   //
   template <typename T>
   bool
-  find_options (initializer_list<const char*>,
+  find_options (const initializer_list<const char*>&,
                 T&,
                 const variable&,
                 bool = false);
 
   template <typename T>
   bool
-  find_options (initializer_list<const char*>, T&, const char*, bool = false);
+  find_options (const initializer_list<const char*>&,
+                T&,
+                const char*,
+                bool = false);
 
   LIBBUILD2_SYMEXPORT bool
-  find_options (initializer_list<const char*>, const lookup&, bool = false);
+  find_options (const initializer_list<const char*>&,
+                const lookup&,
+                bool = false);
 
   LIBBUILD2_SYMEXPORT bool
-  find_options (initializer_list<const char*>, const strings&, bool = false);
+  find_options (const initializer_list<const char*>&,
+                const strings&,
+                bool = false);
 
   LIBBUILD2_SYMEXPORT bool
-  find_options (initializer_list<const char*>, const cstrings&, bool = false);
+  find_options (const initializer_list<const char*>&,
+                const cstrings&,
+                bool = false);
 
   // As above but look for an option that has the specified prefix. Return the
   // pointer to option or NULL if not found (thus can be used as bool).
@@ -651,29 +660,29 @@ namespace build2
   //
   template <typename T>
   const string*
-  find_option_prefixes (initializer_list<const char*>,
+  find_option_prefixes (const initializer_list<const char*>&,
                         T&,
                         const variable&,
                         bool = false);
 
   template <typename T>
   const string*
-  find_option_prefixes (initializer_list<const char*>,
+  find_option_prefixes (const initializer_list<const char*>&,
                         T&,
                         const char*,
                         bool = false);
 
   LIBBUILD2_SYMEXPORT const string*
-  find_option_prefixes (initializer_list<const char*>,
+  find_option_prefixes (const initializer_list<const char*>&,
                         const lookup&, bool = false);
 
   LIBBUILD2_SYMEXPORT const string*
-  find_option_prefixes (initializer_list<const char*>,
+  find_option_prefixes (const initializer_list<const char*>&,
                         const strings&,
                         bool = false);
 
   LIBBUILD2_SYMEXPORT const char*
-  find_option_prefixes (initializer_list<const char*>,
+  find_option_prefixes (const initializer_list<const char*>&,
                         const cstrings&,
                         bool = false);
 
-- 
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