From 46c427535a72a3bcd32c2e9ff0eafc0e9e399996 Mon Sep 17 00:00:00 2001
From: Jan Tojnar <jtojnar@gmail.com>
Date: Thu, 27 Jan 2022 17:23:13 +0100
Subject: [PATCH] scribusUnstable: fix build with latest poppler

Poppler 22.01.0 requires std=c++17:

https://gitlab.freedesktop.org/poppler/poppler/-/merge_requests/1027

It will be enforced in next release:

https://github.com/scribusproject/scribus/commit/0b1abeff0891b0907cdccb4ae965541b24b611f8
---
 pkgs/applications/office/scribus/unstable.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pkgs/applications/office/scribus/unstable.nix b/pkgs/applications/office/scribus/unstable.nix
index 6aed41d7f9af..21adb90cab9e 100644
--- a/pkgs/applications/office/scribus/unstable.nix
+++ b/pkgs/applications/office/scribus/unstable.nix
@@ -83,6 +83,11 @@ mkDerivation rec {
     qttools
   ];
 
+  cmakeFlags = [
+    # poppler uses std::optional
+    "-DWANT_CPP17=ON"
+  ];
+
   meta = with lib; {
     maintainers = with maintainers; [
       erictapen