only @cImport once to work around ziglang/zig#23963

Author: scheibo

src/lib/bindings/node.zig

@@ -9,6 +9,22 @@ const c = @cImport({
     @cInclude("node_api.h");
 });
 
+const Strong = if (@hasField(std.builtin.GlobalLinkage, "strong")) .strong else .Strong;
+
+pub fn exports() type {
+    @export(napi_register_module_v1, .{ .name = "napi_register_module_v1", .linkage = Strong });
+
+    return struct {};
+}
+
+pub fn napi_register_module_v1(env: c.napi_env, exports_: c.napi_value) callconv(.C) c.napi_value {
+    const properties = [_]c.napi_property_descriptor{
+        js.Property.init("engine", .{ .value = register(env) }),
+    };
+    assert(c.napi_define_properties(env, exports_, properties.len, &properties) == c.napi_ok);
+    return exports_;
+}
+
 pub fn register(env: c.napi_env) c.napi_value {
     const object = js.Object.init(env);
     const properties = [_]c.napi_property_descriptor{

src/lib/node.zig

@@ -4,15 +4,8 @@ const std = @import("std");
 
 const assert = std.debug.assert;
 
-const c = @cImport({
-    @cDefine("NAPI_VERSION", "8");
-    @cInclude("node_api.h");
-});
+const exportable = @hasDecl(std.zig, "Zir") and !@hasField(std.zig.Zir.Inst.Tag, "export_value");
 
-export fn napi_register_module_v1(env: c.napi_env, exports: c.napi_value) c.napi_value {
-    const properties = [_]c.napi_property_descriptor{
-        js.Property.init("engine", .{ .value = node.register(env) }),
-    };
-    assert(c.napi_define_properties(env, exports, properties.len, &properties) == c.napi_ok);
-    return exports;
-}
+usingnamespace if (exportable) struct {
+    export const napi_register_module_v1 = node.napi_register_module_v1;
+} else node.exports();