From 1923a6a8ac9f277926e687677aa0ed58e9309615 Mon Sep 17 00:00:00 2001
From: Jan Tojnar <jtojnar@gmail.com>
Date: Wed, 12 Jul 2023 11:30:24 +0200
Subject: [PATCH] qpdfview: Bump C++ standard version
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The build was failing due to missing `std::option`,
reportedly after Poppler 23.02.0 → 23.07.0 bump.
---
 pkgs/applications/office/qpdfview/default.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pkgs/applications/office/qpdfview/default.nix b/pkgs/applications/office/qpdfview/default.nix
index 6cc26c95a05b..dd966433acfb 100644
--- a/pkgs/applications/office/qpdfview/default.nix
+++ b/pkgs/applications/office/qpdfview/default.nix
@@ -52,6 +52,11 @@ mkDerivation rec {
     "APPDATA_INSTALL_PATH=${placeholder "out"}/share/appdata"
   ];
 
+  env = {
+    # Fix build due to missing `std::option`.
+    NIX_CFLAGS_COMPILE = "-std=c++17";
+  };
+
   meta = with lib; {
     description = "A tabbed document viewer";
     license = licenses.gpl2Plus;