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fix(build): define LUAJIT_OS for windows to build PE Object #183

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Nov 25, 2025
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fix(build): define LUAJIT_OS for windows to build PE Object #183

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9 changes: 7 additions & 2 deletions build/luajit.zig
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Original file line number Diff line number Diff line change
Expand Up @@ -127,17 +127,22 @@ pub fn configure(b: *Build, target: Build.ResolvedTarget, optimize: std.builtin.

const buildvm_c_flags: []const []const u8 = switch (target.result.cpu.arch) {
.aarch64, .aarch64_be => &.{ "-DLUAJIT_TARGET=LUAJIT_ARCH_arm64", "-DLJ_ARCH_HASFPU=1", "-DLJ_ABI_SOFTFP=0" },
.x86_64 => &.{ "-DLUAJIT_TARGET=LUAJIT_ARCH_X64" },
.x86_64 => &.{"-DLUAJIT_TARGET=LUAJIT_ARCH_X64"},
else => &.{},
};

const buildvm_windows_c_flags: []const []const u8 = if (target.result.os.tag == .windows)
&.{"-DLUAJIT_OS=1"}
else
&.{};

buildvm.addCSourceFiles(.{
.root = .{ .dependency = .{
.dependency = upstream,
.sub_path = "",
} },
.files = &.{ "src/host/buildvm_asm.c", "src/host/buildvm_fold.c", "src/host/buildvm_lib.c", "src/host/buildvm_peobj.c", "src/host/buildvm.c" },
.flags = buildvm_c_flags,
.flags = std.mem.concat(b.allocator, []const u8, &.{ buildvm_c_flags, buildvm_windows_c_flags }) catch @panic("OOM!"),
});

buildvm.addIncludePath(upstream.path("src"));
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