I applied this patch:

diff --git i/pkgs/package-overrides.nix w/pkgs/package-overrides.nix
index 6cd988d..1691c5e 100644
--- i/pkgs/package-overrides.nix
+++ w/pkgs/package-overrides.nix
@@ -507,17 +507,21 @@ in
         in
         ourPatches ++ upstreamPatches;
 
-      buildInputs =
-        let
-          replaceOpenssl = pkg:
-            if pkg == pkgs.openssl && lib.versionOlder prev.php.version "8.1" then
-              pkgs.openssl_1_1.overrideAttrs (old: {
-                meta = builtins.removeAttrs old.meta [ "knownVulnerabilities" ];
-              })
-            else
-              pkg;
-        in
-        builtins.map replaceOpenssl attrs.buildInputs;
+      buildInputs =let
+        a =
+          let
+            replaceOpenssl = pkg:
+              if pkg == pkgs.openssl && lib.versionOlder prev.php.version "8.1" then
+                pkgs.openssl_1_1.overrideAttrs (old: {
+                  meta = builtins.removeAttrs old.meta [ "knownVulnerabilities" ];
+                })
+              else
+                pkg;
+          in
+            builtins.map replaceOpenssl attrs.buildInputs;
+        b = (lib.elemAt a 0).name
+      in
+        builtins.trace b a;
     });
 
     openswoole =

And then I run: nix build .#php74.extensions.openssl -L

I can see: openssl-1.1.1u, so the replacement works. But it seems it is not on Darwin... any available to verify ?

It would be nice to do the same on a Darwin machine.

In reply to @lstrojny:matrix.org
But still pecl package complains about missing zlib

In reply to @drupol:matrix.org
Can I have a look at this command ?