From 149d68268dc698fb1689f1336aa4c38e38616c63 Mon Sep 17 00:00:00 2001
From: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
Date: Fri, 4 Mar 2022 21:04:19 -0500
Subject: [PATCH] root: fix ROOTConfig.cmake.in patching

---
 pkgs/applications/science/misc/root/default.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/applications/science/misc/root/default.nix b/pkgs/applications/science/misc/root/default.nix
index f8037c01e087..872438158d66 100644
--- a/pkgs/applications/science/misc/root/default.nix
+++ b/pkgs/applications/science/misc/root/default.nix
@@ -107,7 +107,7 @@ stdenv.mkDerivation rec {
 
     # Hardcode path to fix use with cmake
     sed -i cmake/scripts/ROOTConfig.cmake.in \
-      -e 'iset(nlohmann_json_DIR "${nlohmann_json}/lib/cmake/nlohmann_json/")'
+      -e '1iset(nlohmann_json_DIR "${nlohmann_json}/lib/cmake/nlohmann_json/")'
 
     patchShebangs build/unix/
   '' + lib.optionalString noSplash ''