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enhancementNew feature or requestNew feature or request
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Hello there.
Long story short, here's what I've done to override one of the packages with project-specific options inside build.zig
:
// <...>
// Create an option to enable Tracy integration
const tracy_enabled_option = b.option(
bool,
"tracy",
"Enable Tracy integration",
) orelse false;
// Create an option to override Tracy's default call stack capture depth
const tracy_depth_option = b.option(
c_int,
"tracy-depth",
"Override Tracy's default call stack capture depth",
) orelse 0;
// Add these options to a separate group of options
const tracy_options = b.addOptions();
exe.addOptions("tracy_options", tracy_options);
tracy_options.addOption(bool, "tracy", tracy_enabled_option);
tracy_options.addOption(c_int, "tracy_depth", tracy_depth_option);
// Link the Tracy package to the executable
if (deps.pkgs.tracy.pkg) |tracy_pkg| {
// Add the options as a dependency to the Tracy package
exe.addPackage(std.build.Pkg{
.name = "tracy",
.source = .{ .path = tracy_pkg.source.path },
.dependencies = &[_]std.build.Pkg{
.{ .name = "tracy_options", .source = tracy_options.getSource() },
},
});
// If Tracy integration is enabled, link the libraries
if (tracy_enabled_option) {
// Gotta call this snippet until there is a nicer way
inline for (comptime std.meta.declarations(deps.package_data)) |decl| {
const pkg = @as(deps.Package, @field(deps.package_data, decl.name));
for (pkg.system_libs) |item| {
exe.linkSystemLibrary(item);
}
inline for (pkg.c_include_dirs) |item| {
exe.addIncludePath(@field(deps.dirs, decl.name) ++ "/" ++ item);
}
inline for (pkg.c_source_files) |item| {
exe.addCSourceFile(@field(deps.dirs, decl.name) ++ "/" ++ item, pkg.c_source_flags);
}
}
}
}
As you can see, I called the following part of the addAllTo
function manually:
Lines 56 to 80 in b47ad60
\\ var llc = false; | |
\\ var vcpkg = false; | |
\\ inline for (comptime std.meta.declarations(package_data)) |decl| { | |
\\ const pkg = @as(Package, @field(package_data, decl.name)); | |
\\ for (pkg.system_libs) |item| { | |
\\ exe.linkSystemLibrary(item); | |
\\ llc = true; | |
\\ } | |
\\ for (pkg.frameworks) |item| { | |
\\ if (!std.Target.current.isDarwin()) @panic(exe.builder.fmt("a dependency is attempting to link to the framework {s}, which is only possible under Darwin", .{item})); | |
\\ exe.linkFramework(item); | |
\\ llc = true; | |
\\ } | |
\\ inline for (pkg.c_include_dirs) |item| { | |
\\ exe.addIncludePath(@field(dirs, decl.name) ++ "/" ++ item); | |
\\ llc = true; | |
\\ } | |
\\ inline for (pkg.c_source_files) |item| { | |
\\ exe.addCSourceFile(@field(dirs, decl.name) ++ "/" ++ item, pkg.c_source_flags); | |
\\ llc = true; | |
\\ } | |
\\ vcpkg = vcpkg or pkg.vcpkg; | |
\\ } | |
\\ if (llc) exe.linkLibC(); | |
\\ if (builtin.os.tag == .windows and vcpkg) exe.addVcpkgPaths(.static) catch |err| @panic(@errorName(err)); |
I would like to suggest to create a separate function here for linking libraries, so users can call it separately in the case they need to mess around with packages.
nektro
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