nixpkgs/pkgs/development/tools/build-managers/meson/boost-Do-not-add-system-paths-on-nix.patch

From 536108b10271f2f42d41c7d9ddb4ce2ea1851f4f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Niklas=20Hamb=C3=BCchen?= <mail@nh2.me>
Date: Sat, 17 Oct 2020 19:27:08 +0200
Subject: [PATCH] boost: Do not add system paths on nix

---
 mesonbuild/dependencies/boost.py | 17 +----------------
 1 file changed, 1 insertion(+), 16 deletions(-)

diff --git a/mesonbuild/dependencies/boost.py b/mesonbuild/dependencies/boost.py
index 907c0c275..ecaf11b18 100644
--- a/mesonbuild/dependencies/boost.py
+++ b/mesonbuild/dependencies/boost.py
@@ -643,22 +643,7 @@ class BoostDependency(ExternalDependency):
             roots += [x for x in candidates if x.name.lower().startswith('boost') and x.is_dir()]
         else:
             tmp = []  # type: T.List[Path]
-
-            # Homebrew
-            brew_boost = Path('/usr/local/Cellar/boost')
-            if brew_boost.is_dir():
-                tmp += [x for x in brew_boost.iterdir()]
-
-            # Add some default system paths
-            tmp += [Path('/opt/local')]
-            tmp += [Path('/usr/local/opt/boost')]
-            tmp += [Path('/usr/local')]
-            tmp += [Path('/usr')]
-
-            # Cleanup paths
-            tmp = [x for x in tmp if x.is_dir()]
-            tmp = [x.resolve() for x in tmp]
-            roots += tmp
+            # Do not add any non-explicit paths on nix
 
         return roots
 
-- 
2.25.4