From e9a3f9e5688f6a7456bea00b469a00c30776c47b Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <slyich@gmail.com>
Date: Wed, 7 Feb 2024 22:37:37 +0000
Subject: [PATCH 1/2] wxSVG: fix build failure against `gcc-13`

Without the change `wxSVG` fails the build in `master` as
https://hydra.nixos.org/build/248172755:

    libwx_gtk3u_xrc-3.2.so: undefined reference to `std::ios_base_library_init()@GLIBCXX_3.4.32'
    collect2: error: ld returned 1 exit status
    make[1]: *** [Makefile:416: svgview] Error 1

This happens due to mix of `gcc-12` / `gcc-13` `libstdc++` libraries.

THe fix just applies upstream fix for `wxSVG` for `gcc-13`.
---
 pkgs/development/libraries/wxSVG/default.nix | 6 ++++++
 pkgs/top-level/all-packages.nix              | 1 -
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/libraries/wxSVG/default.nix b/pkgs/development/libraries/wxSVG/default.nix
index 5e9b9f2fcb72..51b60282cd35 100644
--- a/pkgs/development/libraries/wxSVG/default.nix
+++ b/pkgs/development/libraries/wxSVG/default.nix
@@ -23,6 +23,12 @@ stdenv.mkDerivation rec {
     hash = "sha256-rkcykfjQpf6voGzScMgmxr6tS86yud1vzs8tt8JeJII=";
   };
 
+  postPatch = ''
+    # Apply upstream patch for gcc-13 support:
+    #   https://sourceforge.net/p/wxsvg/git/ci/7b17fe365fb522618fb3520d7c5c1109b138358f/
+    sed -i src/cairo/SVGCanvasCairo.cpp -e '1i #include <cstdint>'
+  '';
+
   nativeBuildInputs = [
     pkg-config
   ];
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 366091870825..dff6afdffc2b 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -25506,7 +25506,6 @@ with pkgs;
 
   wxSVG = callPackage ../development/libraries/wxSVG {
     wxGTK = wxGTK32;
-    stdenv = gcc12Stdenv;
   };
 
   wtk = callPackage ../development/libraries/wtk { };

From 0d1390ecc81a34cf965b166ca4ef435d93b284d1 Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <slyich@gmail.com>
Date: Wed, 7 Feb 2024 22:41:08 +0000
Subject: [PATCH 2/2] wxSVG: enable build parallelism

---
 pkgs/development/libraries/wxSVG/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/development/libraries/wxSVG/default.nix b/pkgs/development/libraries/wxSVG/default.nix
index 51b60282cd35..0119a2c03776 100644
--- a/pkgs/development/libraries/wxSVG/default.nix
+++ b/pkgs/development/libraries/wxSVG/default.nix
@@ -42,6 +42,8 @@ stdenv.mkDerivation rec {
     wxGTK
   ] ++ lib.optional stdenv.isDarwin Cocoa;
 
+  enableParallelBuilding = true;
+
   meta = with lib; {
     homepage = "https://wxsvg.sourceforge.net/";
     description = "A SVG manipulation library built with wxWidgets";