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-rw-r--r--pkgs/development/ocaml-modules/lablgtk/default.nix6
1 files changed, 3 insertions, 3 deletions
diff --git a/pkgs/development/ocaml-modules/lablgtk/default.nix b/pkgs/development/ocaml-modules/lablgtk/default.nix
index 96dbd071fdefe..6b35bb423e3bc 100644
--- a/pkgs/development/ocaml-modules/lablgtk/default.nix
+++ b/pkgs/development/ocaml-modules/lablgtk/default.nix
@@ -12,7 +12,7 @@ let param =
       rev = version;
       sha256 = "sha256-69Svno0qLaUifMscnVuPUJlCo9d8Lee+1qiYx34G3Po=";
     };
-    NIX_CFLAGS_COMPILE = null;
+    env.NIX_CFLAGS_COMPILE = null;
     buildInputs = [ camlp-streams ];
   } else if check "3.12" then {
     version = "2.18.5";
@@ -24,13 +24,13 @@ let param =
     # gcc-10. Otherwise build fails as:
     #   ld: ml_gtktree.o:(.bss+0x0): multiple definition of
     #     `ml_table_extension_events'; ml_gdkpixbuf.o:(.bss+0x0): first defined here
-    NIX_CFLAGS_COMPILE = "-fcommon";
+    env.NIX_CFLAGS_COMPILE = "-fcommon";
   } else throw "lablgtk is not available for OCaml ${ocaml.version}";
 in
 
 stdenv.mkDerivation {
   pname = "ocaml${ocaml.version}-lablgtk";
-  inherit (param) version src NIX_CFLAGS_COMPILE;
+  inherit (param) version src env;
 
   # gnumake42: https://github.com/garrigue/lablgtk/issues/162
   nativeBuildInputs = [ pkg-config ocaml findlib gnumake42 ];