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What happens if I push all of nixpkgs
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Nix
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970{ stdenv, lib, python3, cmake, libllvm, ocaml, findlib, ctypes,}:
let version = lib.getVersion libllvm;in
stdenv.mkDerivation { pname = "ocaml-llvm"; inherit version;
inherit (libllvm) src;
nativeBuildInputs = [ cmake python3 ocaml findlib ]; buildInputs = [ ctypes ]; propagatedBuildInputs = [ libllvm ];
strictDeps = true;
preConfigure = lib.optionalString (lib.versionAtLeast version "13.0.0") '' cd llvm '';
cmakeFlags = [ "-DBUILD_SHARED_LIBS=YES" # fixes bytecode builds "-DLLVM_OCAML_OUT_OF_TREE=TRUE" "-DLLVM_OCAML_INSTALL_PATH=${placeholder "out"}/ocaml" "-DLLVM_OCAML_EXTERNAL_LLVM_LIBDIR=${lib.getLib libllvm}/lib" ];
buildFlags = [ "ocaml_all" ];
installFlags = [ "-C" "bindings/ocaml" ];
postInstall = '' mkdir -p $OCAMLFIND_DESTDIR/ mv $out/ocaml $OCAMLFIND_DESTDIR/llvm mv $OCAMLFIND_DESTDIR/llvm/META{.llvm,} mv $OCAMLFIND_DESTDIR/llvm/stublibs $OCAMLFIND_DESTDIR/stublibs '';
passthru = { inherit libllvm; };
meta = { inherit (libllvm.meta) license homepage; inherit (ocaml.meta) platforms; description = "OCaml bindings distributed with LLVM"; maintainers = with lib.maintainers; [ vbgl ]; };
}