Include c header

src/eggdrop.h

@@ -89,13 +89,6 @@
 #define PASSWORDMAX 30 /* highest value compatible to older eggdrop */
 #define PASSWORDLEN PASSWORDMAX + 1
 
-
-/* We have to generate compiler errors in a weird way since not all compilers
- * support the #error preprocessor directive. */
-#ifndef STDC_HEADERS
-#  include "Error: Your system must have standard ANSI C headers."
-#endif
-
 #ifdef HAVE_UNISTD_H
 #  include <unistd.h>
 #endif

src/main.h

@@ -57,12 +57,7 @@
 #  define TCL_CONST86
 #endif
 
-#ifdef HAVE_STDARG_H
-#  include <stdarg.h>
-#else
-#  error "Must have stdarg.h"
-#endif
-
+#include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>

src/mod/zig.mod/Makefile

@@ -13,7 +13,7 @@ static: ../zig.o
 modules: ../../../zig.$(MOD_EXT)
 
 ../zig.o:
-	zig build-lib -fPIC zig.zig
+	zig build-lib -fPIC -lc -isystem ../../.. zig.zig
 	mv libzig.a.o ../zig.o
 
 ../../../zig.$(MOD_EXT): ../zig.o

src/mod/zig.mod/zig.zig

@@ -4,10 +4,19 @@
 //
 // Copyright (c) 2024 Michael Ortmann
 
+const MODULE_NAME: []u8 = "zig";
+
+const c = @cImport({
+    // See https://github.com/ziglang/zig/issues/515
+    @cDefine("_NO_CRT_STDIO_INLINE", "1");
+    @cInclude("src/mod/module.h");
+});
+
 const std = @import("std");
 
-export fn zig_start() ?[*]const u8 {
-  const stdout = std.io.getStdOut().writer();
-  stdout.print("Hello, {s}!\n", .{"world"}) catch return null;
-  return "WIP".ptr;
+export fn zig_start(global_funcs: c.global) ?[*]const u8 {
+    _ = global_funcs;
+
+    std.io.getStdOut().writer().print("hello from zig.mod zig_start()\n", .{}) catch return null;
+    return "WIP".ptr;
 }