postgresql_jit: fix build

Failing Hydra build: https://hydra.nixos.org/build/239477682/nixlog/1

This got fixed upstream already in the release branches, applying the
patches here solves the issue.

This skips v11 since there's no patch available and it will be dropped
soon anyways[1].

[1] #264250

pkgs/servers/sql/postgresql/default.nix

@@ -37,6 +37,8 @@ let
     pname = "postgresql";
 
     stdenv' = if jitSupport then llvmPackages.stdenv else stdenv;
+
+    majorVersion = lib.versions.major version;
   in stdenv'.mkDerivation (finalAttrs: {
     inherit pname version;
 
@@ -110,8 +112,36 @@ let
         src = ./locale-binary-path.patch;
         locale = "${if stdenv.isDarwin then darwin.adv_cmds else lib.getBin stdenv.cc.libc}/bin/locale";
       })
-
-    ] ++ lib.optionals stdenv'.hostPlatform.isMusl (
+    ] ++ (let
+      llvmJITPatches = {
+        "12" = {
+          rev = "15ddc9725eb73d97a16652c7c90d993302773544";
+          hash = "sha256-3dsaN/YTmc9JfIO/eXTr6tUqxMXHih58yhhtCW6Cz4E=";
+        };
+        "13" = {
+          rev = "f28956b239f19858e7c429d3065678ce79c5104b";
+          hash = "sha256-C31RF6sPYr0iSmGBjKWIq9oPMpLkZ1FIkPGhGANJecU=";
+        };
+        "14" = {
+          rev = "82d9a782a29633a7d2c8c0785e4162a46f93d23b";
+          hash = "sha256-qDStZ2fQyTnng3sjf502aNLIsqRsa59bpaZLY3cE2BY=";
+        };
+        "15" = {
+          rev = "eed1feb3fee1a558b67b04cbd709f31142f071d5";
+          hash = "sha256-IflqFi93Pyr/VfgS+jMdI/lYu4ISrgVlInWKueYqpZc=";
+        };
+        "16" = {
+          rev = "74d19ec096dfbda5782e62892de7e86a104f8265";
+          hash = "sha256-VB1Uc5waS8u5LjtvjLfeZcrHPSxmP2PyRVpMhK9+Xgc=";
+        };
+      };
+    in lib.optional
+      (jitSupport && llvmJITPatches?${majorVersion})
+      (fetchpatch {
+        url = "https://github.com/postgres/postgres/commit/${llvmJITPatches.${majorVersion}.rev}.patch";
+        inherit (llvmJITPatches.${majorVersion}) hash;
+      })
+    ) ++ lib.optionals stdenv'.hostPlatform.isMusl (
       let
         self = {
           "12" = {
@@ -151,7 +181,7 @@ let
           };
         };
 
-        patchesForVersion = self.${lib.versions.major version} or (throw "no musl patches for postgresql ${version}");
+        patchesForVersion = self.${majorVersion} or (throw "no musl patches for postgresql ${version}");
       in
         lib.attrValues patchesForVersion
     ) ++ lib.optionals stdenv'.isLinux  [