From b9a9f28dadfb23e99ec9f1333e969af631ce7376 Mon Sep 17 00:00:00 2001
From: Symphorien Gibol <symphorien+git@xlumurb.eu>
Date: Fri, 25 Jan 2019 22:20:12 +0100
Subject: [PATCH] neovim: remove spurious references to compilation flags

---
 pkgs/applications/editors/neovim/default.nix | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/pkgs/applications/editors/neovim/default.nix b/pkgs/applications/editors/neovim/default.nix
index a3580b1afa7..2cd1b277377 100644
--- a/pkgs/applications/editors/neovim/default.nix
+++ b/pkgs/applications/editors/neovim/default.nix
@@ -46,6 +46,13 @@ let
 
     lualibs = [ luaPackages.mpack luaPackages.lpeg luaPackages.luabitop ];
 
+    # nvim --version output retains compilation flags and references to build tools
+    postPatch = ''
+      substituteInPlace src/nvim/version.c --replace NVIM_VERSION_CFLAGS "";
+    '';
+    # check that the above patching actually works
+    disallowedReferences = [ stdenv.cc ];
+
     cmakeFlags = [
       "-DLUA_PRG=${luaPackages.lua}/bin/lua"
       "-DGPERF_PRG=${gperf}/bin/gperf"