From cb8d46b1abb7885c794eeec0fc8e4a3b359ee5e8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Motiejus=20Jak=C5=A1tys?= <motiejus@jakstys.lt>
Date: Tue, 10 Feb 2026 11:35:41 +0000
Subject: [PATCH] fix tcc

---
 ast.c       |  4 ++--
 common.h    | 12 +++++++++++-
 main.c      |  2 ++
 parser.c    |  3 ++-
 tokenizer.c |  3 ++-
 zig0.c      |  2 ++
 6 files changed, 21 insertions(+), 5 deletions(-)

diff --git a/ast.c b/ast.c
index 22079108bd..75afe85fa5 100644
--- a/ast.c
+++ b/ast.c
@@ -1,10 +1,10 @@
+#include "common.h"
+
 #include <stdbool.h>
-#include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
 
 #include "ast.h"
-#include "common.h"
 #include "parser.h"
 
 #define N 1024
diff --git a/common.h b/common.h
index c3b4b0ce96..036a3eee9a 100644
--- a/common.h
+++ b/common.h
@@ -1,7 +1,17 @@
-// common.h
+// common.h — must be included before any system headers.
 #ifndef _ZIG0_COMMON_H__
 #define _ZIG0_COMMON_H__
 
+// tcc doesn't define __GNUC__, causing glibc to #define __attribute__ to
+// nothing.
+#if defined(__TINYC__) && !defined(__GNUC__)
+#define __GNUC__ 2
+#define __GNUC_MINOR__ 0
+#undef __REDIRECT
+#undef __REDIRECT_NTH
+#undef __REDIRECT_NTHNL
+#endif
+
 #include <stdint.h>
 #include <stdlib.h>
 
diff --git a/main.c b/main.c
index e15443cb32..16909955eb 100644
--- a/main.c
+++ b/main.c
@@ -1,3 +1,5 @@
+#include "common.h"
+
 #include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
diff --git a/parser.c b/parser.c
index 0e0ec9d6a6..f0c6a50c1b 100644
--- a/parser.c
+++ b/parser.c
@@ -1,10 +1,11 @@
+#include "common.h"
+
 #include <assert.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
 #include "ast.h"
-#include "common.h"
 #include "parser.h"
 
 const AstNodeIndex null_node = 0;
diff --git a/tokenizer.c b/tokenizer.c
index 24bf4681ab..3607118524 100644
--- a/tokenizer.c
+++ b/tokenizer.c
@@ -1,5 +1,6 @@
+#include "common.h"
+
 #include <stdbool.h>
-#include <stdint.h>
 #include <stdio.h>
 #include <string.h>
 
diff --git a/zig0.c b/zig0.c
index 40e9480c27..528305a9bb 100644
--- a/zig0.c
+++ b/zig0.c
@@ -1,3 +1,5 @@
+#include "common.h"
+
 #include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>