From 730a9a04facd478381f3911ae668b3b46e349f08 Mon Sep 17 00:00:00 2001
From: Alyssa Ross <hi@alyssa.is>
Date: Sun, 18 Apr 2021 20:12:09 +0000
Subject: [PATCH] stdenv.isBSD: reinit

This was removed in e29b0da9c7492732e0dc5730c3da754baa57a1a2, because
it was felt it was ambiguous whether isBSD should remove Darwin.

I think it should be reintroduced.  Packages sometimes have their own
concepts of "is BSD" e.g. Lua, and these almost never include Darwin,
so let's keep Darwin excluded.

Without a way to say "is this BSD", one has to list all flavours of
BSD seperately, even though fundamentally they're still extremely
similar.  I don't want to have to write the following!

    stdenv.isFreeBSD || stdenv.isNetBSD || stdenv.isOpenBSD || stdenv.isDragonFlyBSD

Additionally, we've had stdenv.hostPlatform.isBSD this whole time, and
it hasn't hurt anything.
---
 pkgs/stdenv/generic/default.nix    | 2 +-
 pkgs/tools/misc/ffsend/default.nix | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkgs/stdenv/generic/default.nix b/pkgs/stdenv/generic/default.nix
index 476fab3eed6..c3582b16677 100644
--- a/pkgs/stdenv/generic/default.nix
+++ b/pkgs/stdenv/generic/default.nix
@@ -137,7 +137,7 @@ let
 
       # Utility flags to test the type of platform.
       inherit (hostPlatform)
-        isDarwin isLinux isSunOS isCygwin isFreeBSD isOpenBSD
+        isDarwin isLinux isSunOS isCygwin isBSD isFreeBSD isOpenBSD
         isi686 isx86_32 isx86_64
         is32bit is64bit
         isAarch32 isAarch64 isMips isBigEndian;
diff --git a/pkgs/tools/misc/ffsend/default.nix b/pkgs/tools/misc/ffsend/default.nix
index 4c92a0be792..4e059725f86 100644
--- a/pkgs/tools/misc/ffsend/default.nix
+++ b/pkgs/tools/misc/ffsend/default.nix
@@ -7,7 +7,7 @@
 }:
 
 let
-  usesX11 = stdenv.isLinux || stdenv.hostPlatform.isBSD;
+  usesX11 = stdenv.isLinux || stdenv.isBSD;
 in
 
 assert (x11Support && usesX11) -> xclip != null || xsel != null;