build.zig: fix single-threaded option

Instead of defaulting to false, just keep the option as optional to
communicate default to the build system.

Fixes one problem with building the compiler for single-threaded
targets.
This commit is contained in:
Andrew Kelley 2022-01-28 17:16:51 -07:00
parent 68fc26cd08
commit cd5b25c5ae

View File

@ -16,7 +16,7 @@ pub fn build(b: *Builder) !void {
b.setPreferredReleaseMode(.ReleaseFast);
const mode = b.standardReleaseOptions();
const target = b.standardTargetOptions(.{});
const single_threaded = b.option(bool, "single-threaded", "Build artifacts that run in single threaded mode") orelse false;
const single_threaded = b.option(bool, "single-threaded", "Build artifacts that run in single threaded mode");
const use_zig_libcxx = b.option(bool, "use-zig-libcxx", "If libc++ is needed, use zig's bundled version, don't try to integrate with the system") orelse false;
var docgen_exe = b.addExecutable("docgen", "doc/docgen.zig");