From a14daf38475a414e462708d9b0f4d651e5119b58 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Wed, 21 Nov 2018 11:03:37 +0200
Subject: Add support for target and prerequisite specific variable blocks

For example, now instead of:

lib{foo}: cxx.loptions += -static
lib{foo}: cxx.libs += -lpthread

We can write:

lib{foo}:
{
  cxx.loptions += -static
  cxx.libs += -lpthread
}

The same works for prerequisites as well as target type/patterns. For
example:

exe{*.test}:
{
  test = true
  install = false
}
---
 build2/variable.hxx | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'build2/variable.hxx')

diff --git a/build2/variable.hxx b/build2/variable.hxx
index e45914a..9688944 100644
--- a/build2/variable.hxx
+++ b/build2/variable.hxx
@@ -1227,6 +1227,9 @@ namespace build2
       size_t version = 0; // Incremented on each modification (variable_cache).
     };
 
+    // Note that we guarantee ascending iteration order (e.g., for predictable
+    // dump output in tests).
+    //
     using map_type = butl::prefix_map<reference_wrapper<const variable>,
                                       value_data,
                                       '.'>;
-- 
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