oggvideotools: fix build on gcc-12

While at it:

- uploaded gcc-10 fix to upstream bugtracker and pulled patch from there
- dropped explicit -O0 from CXXFLAGS to enable default optimisations

pkgs/tools/misc/oggvideotools/default.nix

@@ -1,4 +1,4 @@
-{ lib, stdenv, fetchurl, cmake, pkg-config, boost, gd, libogg, libtheora, libvorbis }:
+{ lib, stdenv, fetchurl, fetchpatch, cmake, pkg-config, boost, gd, libogg, libtheora, libvorbis }:
 
 stdenv.mkDerivation rec {
   pname = "oggvideotools";
@@ -10,9 +10,30 @@ stdenv.mkDerivation rec {
   };
 
   patches = [
-    ./fix-compile.patch
+    # Fix pending upstream inclusion for missing includes:
+    #  https://sourceforge.net/p/oggvideotools/bugs/12/
+    (fetchpatch {
+      name = "gcc-10.patch";
+      url = "https://sourceforge.net/p/oggvideotools/bugs/12/attachment/fix-compile.patch";
+      sha256 = "sha256-mJttoC3jCLM3vmPhlyqh+W0ryp2RjJGIBXd6sJfLJA4=";
+    })
+
+    # Fix pending upstream inclusion for build failure on gcc-12:
+    #  https://sourceforge.net/p/oggvideotools/bugs/13/
+    (fetchpatch {
+      name = "gcc-12.patch";
+      url = "https://sourceforge.net/p/oggvideotools/bugs/13/attachment/fix-gcc-12.patch";
+      sha256 = "sha256-zuDXe86djWkR8SgYZHkuAJJ7Lf2VYsVRBrlEaODtMKE=";
+      # svn patch, rely on prefix added by fetchpatch:
+      extraPrefix = "";
+    })
   ];
 
+  postPatch = ''
+    # Don't disable optimisations
+    substituteInPlace CMakeLists.txt --replace " -O0 " ""
+  '';
+
   nativeBuildInputs = [ cmake pkg-config ];
 
   buildInputs = [ boost gd libogg libtheora libvorbis ];

pkgs/tools/misc/oggvideotools/fix-compile.patch

@@ -1,10 +0,0 @@
---- oggvideotools-0.9.1/src/base/test/decoderTest.cpp	2016-09-05 10:35:14.000000000 +0200
-+++ oggvideotools-0.9.1/src/base/test/decoderTest.cpp	2021-10-22 22:42:48.980473419 +0200
-@@ -5,6 +5,7 @@
- #include "oggDecoder.h"
- #include <vector>
- #include <iostream>
-+#include <cstring>
- 
- int main(int argc, char* argv[])
- {