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-rw-r--r--pkgs/development/ocaml-modules/zarith/default.nix3
1 files changed, 3 insertions, 0 deletions
diff --git a/pkgs/development/ocaml-modules/zarith/default.nix b/pkgs/development/ocaml-modules/zarith/default.nix
index a05ff43a3df..10ac88bcb90 100644
--- a/pkgs/development/ocaml-modules/zarith/default.nix
+++ b/pkgs/development/ocaml-modules/zarith/default.nix
@@ -14,6 +14,9 @@ stdenv.mkDerivation rec {
 
   buildInputs = [ ocaml findlib pkgconfig gmp perl ];
 
+  patchPhase = ''
+    substituteInPlace ./z_pp.pl --replace '/usr/bin/perl' '${perl}/bin/perl'
+  '';
   configurePhase = ''
     ./configure -installdir $out/lib/ocaml/${ocaml_version}/site-lib
   '';