From 07340b8be742e08f1a000475eb1f389d5525d6c8 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <e.dolstra@tudelft.nl>
Date: Sat, 6 Aug 2011 18:23:38 +0000
Subject: [PATCH] * Add the Nix corepkgs to the end of the search path.  This
 makes it   possible for other Nix expressions to use corepkgs (mostly useful 
  for the buildenv function).

---
 src/libexpr/eval.cc                  | 2 ++
 tests/lang/eval-okay-search-path.nix | 4 ++--
 tests/lang/eval-okay-search-path.out | 2 +-
 3 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/libexpr/eval.cc b/src/libexpr/eval.cc
index 674fa96f0..ed5486f5b 100644
--- a/src/libexpr/eval.cc
+++ b/src/libexpr/eval.cc
@@ -186,6 +186,8 @@ EvalState::EvalState()
     searchPathInsertionPoint = searchPath.end();
     Strings paths = tokenizeString(getEnv("NIX_PATH", ""), ":");
     foreach (Strings::iterator, i, paths) addToSearchPath(*i);
+    printMsg(lvlError, nixDataDir);
+    addToSearchPath("nix=" + nixDataDir + "/nix/corepkgs");
     searchPathInsertionPoint = searchPath.begin();
 }
 
diff --git a/tests/lang/eval-okay-search-path.nix b/tests/lang/eval-okay-search-path.nix
index 02920149b..21485dbbf 100644
--- a/tests/lang/eval-okay-search-path.nix
+++ b/tests/lang/eval-okay-search-path.nix
@@ -1,3 +1,3 @@
+assert builtins.pathExists <nix/buildenv>;
+
 import <a.nix> + import <b.nix> + import <c.nix> + import <dir5/c.nix>
-
-
diff --git a/tests/lang/eval-okay-search-path.out b/tests/lang/eval-okay-search-path.out
index d1cc1b4e5..d0bc8c5e8 100644
--- a/tests/lang/eval-okay-search-path.out
+++ b/tests/lang/eval-okay-search-path.out
@@ -1 +1 @@
-"abc"
+"abcc"