nlohmann_json: backport gcc-13 fix

Without the change `nlohmann_json` build on `gcc-13 `fails as:

    In file included from <<NIX>>-gcc-13.0.0/include/c++/13.0.0/ext/alloc_traits.h:34,
                     from <<NIX>>-gcc-13.0.0/include/c++/13.0.0/bits/basic_string.h:39,
                     from <<NIX>>-gcc-13.0.0/include/c++/13.0.0/string:54,
                     from <<NIX>>-gcc-13.0.0/include/c++/13.0.0/bits/locale_classes.h:40,
                     from <<NIX>>-gcc-13.0.0/include/c++/13.0.0/locale:41,
                     from tests/src/unit-regression2.cpp:19:
    <<NIX>>-gcc-13.0.0/include/c++/13.0.0/bits/alloc_traits.h: In instantiation of 'struct std::__allocator_traits_base::__rebind<my_allocator<unsigned char>, unsigned char, void>':
    <<NIX>>-gcc-13.0.0/include/c++/13.0.0/bits/alloc_traits.h:94:11:   required by substitution of 'template<class _Alloc, class _Up> using std::__alloc_rebind = typename std::__allocator_traits_base::__rebind<_Alloc, _Up>::type [with _Alloc = my_allocator<unsigned char>; _Up = unsigned char]'
    <<NIX>>-gcc-13.0.0/include/c++/13.0.0/bits/alloc_traits.h:228:8:   required by substitution of 'template<class _Alloc> template<class _Tp> using std::allocator_traits< <template-parameter-1-1> >::rebind_alloc = std::__alloc_rebind<_Alloc, _Tp> [with _Tp = unsigned char; _Alloc = my_allocator<unsigned char>]'
    <<NIX>>-gcc-13.0.0/include/c++/13.0.0/ext/alloc_traits.h:126:65:   required from 'struct __gnu_cxx::__alloc_traits<my_allocator<unsigned char>, unsigned char>::rebind<unsigned char>'
    <<NIX>>-gcc-13.0.0/include/c++/13.0.0/bits/stl_vector.h:88:21:   required from 'struct std::_Vector_base<unsigned char, my_allocator<unsigned char> >'
    <<NIX>>-gcc-13.0.0/include/c++/13.0.0/bits/stl_vector.h:423:11:   required from 'class std::vector<unsigned char, my_allocator<unsigned char> >'
    tests/src/unit-regression2.cpp:807:63:   required from here
    <<NIX>>-gcc-13.0.0/include/c++/13.0.0/bits/alloc_traits.h:70:31: error: static assertion failed: allocator_traits<A>::rebind_alloc<A::value_type> must be A
       70 |                         _Tp>::value,
          |                               ^~~~~

1 files changed, 19 insertions, 0 deletions

diff --git a/pkgs/development/libraries/nlohmann_json/default.nix b/pkgs/development/libraries/nlohmann_json/default.nix
index 3c8244c755320..29c7ca2c690bf 100644
--- a/pkgs/development/libraries/nlohmann_json/default.nix
+++ b/pkgs/development/libraries/nlohmann_json/default.nix
@@ -1,6 +1,7 @@
 { stdenv
 , lib
 , fetchFromGitHub
+, fetchpatch
 , cmake
 }:
 let
@@ -21,6 +22,24 @@ in stdenv.mkDerivation (finalAttrs: {
     hash = "sha256-SUdhIV7tjtacf5DkoWk9cnkfyMlrkg8ZU7XnPZd22Tw=";
   };
 
+  patches = [
+    # Backport fix for gcc-13:
+    #   https://github.com/nlohmann/json/pull/3895
+    (fetchpatch {
+      name = "gcc-13-rebind.patch";
+      url = "https://github.com/nlohmann/json/commit/a5b09d50b786638ed9deb09ef13860a3cb64eb6b.patch";
+      hash = "sha256-Jbi0VwZP+ZHTGbpIwgKCVc66gOmwjkT5iOUe85eIzM0=";
+    })
+
+    # Backport fix for gcc-13:
+    #   https://github.com/nlohmann/json/pull/3950
+    (fetchpatch {
+      name = "gcc-13-eq-op.patch";
+      url = "https://github.com/nlohmann/json/commit/a49829bd984c0282be18fcec070df0c31bf77dd5.patch";
+      hash = "sha256-D+cRtdN6AXr4z3/y9Ui7Zqp3e/y10tp+DOL80ZtPz5E=";
+    })
+  ];
+
   nativeBuildInputs = [ cmake ];
 
   cmakeFlags = [