Workspace rules (Nixpkgs)
Macros and Functions
haskell_register_ghc_nixpkgs
Register a package from Nixpkgs as a toolchain.
Toolchains can be used to compile Haskell code. To have this
toolchain selected during toolchain
resolution, set a host platform that
includes the
@io_tweag_rules_nixpkgs//nixpkgs/constraints:support_nix
constraint value.
Examples
haskell_register_ghc_nixpkgs(
locale_archive = "@glibc_locales//:locale-archive",
atttribute_path = "haskellPackages.ghc",
version = "1.2.3", # The version of GHC
)
Setting the host platform can be done on the command-line like in the following:
--host_platform=@io_tweag_rules_nixpkgs//nixpkgs/platforms:host
version
is_static
Deprecated. The functionality it previously gated (supporting GHC versions with static runtime systems) now sits under static_runtime, a name chosen to avoid confusion with the new flag fully_static_link, which controls support for fully-statically-linked binaries. During the deprecation period, we rewrite is_static to static_runtime in this macro as long as the new attributes aren't also used. This argument and supporting code should be removed in a future release.
static_runtime
True if and only if a static GHC runtime is to be used. This is required in order to use statically-linked Haskell libraries with GHCi and Template Haskell.
fully_static_link
True if and only if fully-statically-linked binaries are to be built.
build_file
build_file_content
compiler_flags
compiler_flags_select
temporary workaround to pass conditional arguments. See https://github.com/bazelbuild/bazel/issues/9199 for details.
haddock_flags
repl_ghci_args
cabalopts
locale_archive
attribute_path
sh_posix_attributes
List of attribute paths to extract standard Unix shell tools from. Passed to nixpkgs_sh_posix_configure.