From 5cb43631debbebb413de54b770118b13482a6176 Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Tue, 8 Mar 2022 15:37:56 +0300
Subject: Fix operator<<(ostream,target_state)

---
 libbuild2/target-state.hxx | 3 +++
 libbuild2/target.cxx       | 1 +
 2 files changed, 4 insertions(+)

diff --git a/libbuild2/target-state.hxx b/libbuild2/target-state.hxx
index 48d683d..ea7015c 100644
--- a/libbuild2/target-state.hxx
+++ b/libbuild2/target-state.hxx
@@ -20,6 +20,9 @@ namespace build2
   //
   // Note also that value 0 is available to indicate absent/invalid state.
   //
+  // NOTE: don't forget to also update operator<<(ostream,target_state) if
+  //       changing anything here.
+  //
   enum class target_state: uint8_t
   {
     unknown = 1,
diff --git a/libbuild2/target.cxx b/libbuild2/target.cxx
index 7ab0abd..c3c03d7 100644
--- a/libbuild2/target.cxx
+++ b/libbuild2/target.cxx
@@ -69,6 +69,7 @@ namespace build2
   //
   static const char* const target_state_[] =
   {
+    "<invalid>", // Absent/invalid (see target_state for details).
     "unknown",
     "unchanged",
     "postponed",
-- 
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