From 74a82ccd8e8535d32afb1c3f0db9c97cdc088322 Mon Sep 17 00:00:00 2001
From: "Matthias J. Kannwischer" <matthias@zerorisc.com>
Date: Sat, 30 May 2026 18:03:36 +0800
Subject: [PATCH] camlp5: propagate findlib deps pcre2 and fmt

camlp5's META requires pcre2 and fmt, but they were only buildInputs, so
findlib consumers of camlp5 could not resolve them. Move them to
propagatedBuildInputs.
---
 pkgs/development/tools/ocaml/camlp5/default.nix | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/tools/ocaml/camlp5/default.nix b/pkgs/development/tools/ocaml/camlp5/default.nix
index 4a8cd807a53f..e2931d73ddc3 100644
--- a/pkgs/development/tools/ocaml/camlp5/default.nix
+++ b/pkgs/development/tools/ocaml/camlp5/default.nix
@@ -8,6 +8,7 @@
   makeWrapper,
   rresult,
   bos,
+  fmt,
   pcre2,
   re,
   camlp-streams,
@@ -52,12 +53,15 @@ stdenv.mkDerivation (
 
     buildInputs = lib.optionals recent [
       bos
-      pcre2
       re
       rresult
     ];
 
-    propagatedBuildInputs = lib.optional recent camlp-streams;
+    propagatedBuildInputs = lib.optionals recent [
+      camlp-streams
+      pcre2
+      fmt
+    ];
 
     strictDeps = true;