authorgravatar for anthonyem@gmail.comantme0 <anthonyem@gmail.com> 2026-02-08 18:48:54+01:00
committergravatar for andrew@ziglang.orgAndrew Kelley <andrew@ziglang.org> 2026-02-09 07:58:13+01:00
logfb18f2096aaff3a26c309da635472a2fb8b303cd
tree83957d3a1926e44f14b6351b6338dd032500f39c
parentf061c0dc2851e5fab34dca1991ebe64cfd156bd5

Allow build.zig scripts to define module definition files (.def) when building win32 dlls.

3 files changed, 24 insertions(+), 1 deletions(-)

lib/std/Build.zig+3
......@@ -832,6 +832,8 @@ pub const LibraryOptions = struct {
832832 /// Can be set regardless of target. The `.manifest` file will be ignored
833833 /// if the target object format does not support embedded manifests.
834834 win32_manifest: ?LazyPath = null,
835 /// Win32 module definition file (.def).
836 win32_module_definition: ?LazyPath = null,
835837};
836838
837839pub fn addLibrary(b: *Build, options: LibraryOptions) *Step.Compile {
......@@ -846,6 +848,7 @@ pub fn addLibrary(b: *Build, options: LibraryOptions) *Step.Compile {
846848 .use_lld = options.use_lld,
847849 .zig_lib_dir = options.zig_lib_dir,
848850 .win32_manifest = options.win32_manifest,
851 .win32_module_definition = options.win32_module_definition,
849852 });
850853}
851854
lib/std/Build/Step/Compile.zig+17
......@@ -79,6 +79,10 @@ rc_includes: std.zig.RcIncludes = .any,
7979/// Set via options; intended to be read-only after that.
8080win32_manifest: ?LazyPath = null,
8181
82/// (Windows) .def file to embed in the compilation (dll)
83/// Set via options; intended to be read-only after that.
84win32_module_definition: ?LazyPath = null,
85
8286installed_path: ?[]const u8,
8387
8488/// Base address for an executable image.
......@@ -284,6 +288,8 @@ pub const Options = struct {
284288 /// Can be set regardless of target. The `.manifest` file will be ignored
285289 /// if the target object format does not support embedded manifests.
286290 win32_manifest: ?LazyPath = null,
291 /// Win32 module definition file.
292 win32_module_definition: ?LazyPath = null,
287293};
288294
289295pub const Kind = enum {
......@@ -467,6 +473,13 @@ pub fn create(owner: *std.Build, options: Options) *Compile {
467473 compile.win32_manifest = lp.dupe(compile.step.owner);
468474 lp.addStepDependencies(&compile.step);
469475 }
476 if (compile.kind == .lib and compile.linkage != null and compile.linkage.? == .dynamic) {
477 // Building a Win32 DLL, check for win32 .def file.
478 if (options.win32_module_definition) |lp| {
479 compile.win32_module_definition = lp.dupe(compile.step.owner);
480 lp.addStepDependencies(&compile.step);
481 }
482 }
470483 }
471484
472485 if (compile.kind == .lib) {
......@@ -1332,6 +1345,10 @@ fn getZigArgs(compile: *Compile, fuzz: bool) ![][]const u8 {
13321345 try zig_args.append(manifest_file.getPath2(b, step));
13331346 }
13341347
1348 if (compile.win32_module_definition) |module_file| {
1349 try zig_args.append(module_file.getPath2(b, step));
1350 }
1351
13351352 if (compile.image_base) |image_base| {
13361353 try zig_args.append("--image-base");
13371354 try zig_args.append(b.fmt("0x{x}", .{image_base}));
src/main.zig+4-1
......@@ -1809,6 +1809,9 @@ fn buildOutputType(
18091809 fatal("only one manifest file can be specified, found '{s}' after '{s}'", .{ arg, other });
18101810 } else manifest_file = arg;
18111811 },
1812 .def => {
1813 linker_module_definition_file = arg;
1814 },
18121815 .assembly, .assembly_with_cpp, .c, .cpp, .h, .hpp, .hm, .hmm, .ll, .bc, .m, .mm => {
18131816 dev.check(.c_compiler);
18141817 try create_module.c_source_files.append(arena, .{
......@@ -1834,7 +1837,7 @@ fn buildOutputType(
18341837 fatal("found another zig file '{s}' after root source file '{s}'", .{ arg, other });
18351838 } else root_src_file = arg;
18361839 },
1837 .def, .unknown => {
1840 .unknown => {
18381841 if (std.ascii.eqlIgnoreCase(".xml", fs.path.extension(arg))) {
18391842 warn("embedded manifest files must have the extension '.manifest'", .{});
18401843 }