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builder.addBuildOption

master
Josh Wolfe 2018-07-08 00:00:05 -04:00
parent ced3aae3b2
commit 410b4d9bdf
1 changed files with 18 additions and 0 deletions
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18
std/build.zig
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@ -814,6 +814,7 @@ pub const LibExeObjStep = struct {
out_h_filename: []const u8,
assembly_files: ArrayList([]const u8),
packages: ArrayList(Pkg),
build_options_contents: std.Buffer,
// C only stuff
source_files: ArrayList([]const u8),
@ -905,6 +906,7 @@ pub const LibExeObjStep = struct {
.lib_paths = ArrayList([]const u8).init(builder.allocator),
.object_src = undefined,
.disable_libc = true,
.build_options_contents = std.Buffer.initSize(builder.allocator, 0) catch unreachable,
};
self.computeOutFileNames();
return self;
@ -945,6 +947,7 @@ pub const LibExeObjStep = struct {
.out_h_filename = undefined,
.assembly_files = undefined,
.packages = undefined,
.build_options_contents = undefined,
};
self.computeOutFileNames();
return self;
@ -1096,6 +1099,12 @@ pub const LibExeObjStep = struct {
self.include_dirs.append(self.builder.cache_root) catch unreachable;
}
pub fn addBuildOption(self: *LibExeObjStep, comptime T: type, name: []const u8, value: T) void {
assert(self.is_zig);
const out = &std.io.BufferOutStream.init(&self.build_options_contents).stream;
out.print("pub const {} = {};\n", name, value) catch unreachable;
}
pub fn addIncludeDir(self: *LibExeObjStep, path: []const u8) void {
self.include_dirs.append(path) catch unreachable;
}
@ -1155,6 +1164,15 @@ pub const LibExeObjStep = struct {
zig_args.append(builder.pathFromRoot(root_src)) catch unreachable;
}
if (self.build_options_contents.len() > 0) {
const build_options_file = try os.path.join(builder.allocator, builder.cache_root, builder.fmt("{}_build_options.zig", self.name));
try std.io.writeFile(builder.allocator, build_options_file, self.build_options_contents.toSliceConst());
try zig_args.append("--pkg-begin");
try zig_args.append("build_options");
try zig_args.append(builder.pathFromRoot(build_options_file));
try zig_args.append("--pkg-end");
}
for (self.object_files.toSliceConst()) |object_file| {
zig_args.append("--object") catch unreachable;
zig_args.append(builder.pathFromRoot(object_file)) catch unreachable;