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zigler

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Zig nif library

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zigler lib zig templates build.zig.eex
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lib/zig/templates/build.zig.eex 

const std = @import("std");

const Builder = std.build.Builder;

<% target = target_struct(@compiler_target, zig_tree) %>

const for_wasm = true;

pub fn build(b: *Builder) void {

    const mode = b.standardReleaseOptions();

    const target = b.standardTargetOptions(<%= to_structdef target %>);

    //const cflags = [_][]const u8{};

    const lib = b.addSharedLibrary(

        "<%= @module_spec.module %>",

        "<%= @code_file %>",

        .{ .versioned = .{.major = <%= @module_spec.version.major %>,

                          .minor = <%= @module_spec.version.minor %>,

                          .patch = <%= @module_spec.version.patch %>}});

    lib.addSystemIncludeDir("<%= :code.root_dir %>/erts-<%= :erlang.system_info(:version) %>/include");

    <%= for dir <- dirs_for(target) do %>

    lib.addSystemIncludeDir("<%= Path.join(zig_tree, dir) %>");

    <% end %>

    <%= for system_include_dir <- @module_spec.system_include_dirs do %>

    lib.addSystemIncludeDir("<%= system_include_dir %>");

    <% end %>

    <%= for include_dir <- @module_spec.include_dirs do %>

    lib.addIncludeDir("<%= include_dir %>");

    <% end %>

    lib.setBuildMode(mode);

    lib.setTarget(target);

    <%= if @module_spec.link_libc do %>

    // use libc if it has been asked for

    lib.linkLibC();

    <% end %>

    <%= if @module_spec.link_libcpp do %>

    // use libcpp if it has been asked for

    lib.linkLibCpp();

    <% end %>

    <%= for system_lib <- @module_spec.system_libs do %>

    lib.linkSystemLibrary("<%= system_lib %>");

    <% end %>

    <%= for source <- @module_spec.sources do %>

    <%= case source do %>

      <% {file, opts} -> %>

        lib.addCSourceFile("<%= file %>", &[_][]const u8{<%= Enum.map_join(opts, ", ", &~s("#{&1}")) %>});

      <% file -> %>

        lib.addCSourceFile("<%= file %>", &[_][]const u8{});

    <% end %>

    <% end %>

    <%= for lib <- @module_spec.libs do %>

    <%= cond do %>

      <% String.ends_with?(lib, ".so") -> %>

    lib.linkSystemLibrary("<%= Path.basename(lib) %>");

      <% String.ends_with?(lib, ".dll") -> %>

    lib.linkSystemLibrary("<%= Path.basename(lib) %>");

      <% String.ends_with?(lib, ".dylib") -> %>

    lib.linkSystemLibrary("<%= Path.basename(lib) %>");

      <% String.ends_with?(lib, ".a") -> %>

    lib.addObjectFile("<%= Path.basename(lib) %>");

      <% true -> %>

        <% raise "invalid library file" %>

    <% end %>

    <% end %>

    lib.linker_allow_shlib_undefined = true;

    // strip_symbols option?

    lib.strip = <%= Mix.env() == :prod %>;

    // future feature

    //

    // c files

    // for (cfiles) |c_file| {

    //     lib.addCSourceFile(c_file, &cflags);

    // }

    lib.install();

}