From 467a87ba1de5b0fc3f714d052552f28dcc27bc85 Mon Sep 17 00:00:00 2001
From: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
Date: Tue, 12 May 2020 18:16:03 -0400
Subject: [PATCH] cmake: compile with _FILE_OFFSET_BITS=64 for 32-bit targets

---
 pkgs/development/tools/build-managers/cmake/default.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pkgs/development/tools/build-managers/cmake/default.nix b/pkgs/development/tools/build-managers/cmake/default.nix
index 0a6335a3eb7..4ca722357c2 100644
--- a/pkgs/development/tools/build-managers/cmake/default.nix
+++ b/pkgs/development/tools/build-managers/cmake/default.nix
@@ -71,6 +71,11 @@ stdenv.mkDerivation rec {
     "--docdir=share/doc/${pname}${version}"
   ] ++ (if useSharedLibraries then [ "--no-system-jsoncpp" "--system-libs" ] else [ "--no-system-libs" ]) # FIXME: cleanup
     ++ lib.optional (useQt4 || withQt5) "--qt-gui"
+    # Workaround https://gitlab.kitware.com/cmake/cmake/-/issues/20568
+    ++ lib.optionals stdenv.hostPlatform.is32bit [
+      "CFLAGS=-D_FILE_OFFSET_BITS=64"
+      "CXXFLAGS=-D_FILE_OFFSET_BITS=64"
+    ]
     ++ [
     "--"
     # We should set the proper `CMAKE_SYSTEM_NAME`.