Fix some cl compilation errors

1 files changed, 7 insertions, 1 deletions

diff --git a/src/loader.c b/src/loader.c
index 8f2ac28..2823a79 100644
--- a/src/loader.c
+++ b/src/loader.c
@@ -6,6 +6,12 @@
 // ====== windows.h ======
 // =======================
 
+#if defined(_MSC_VER) && !defined(__clang__)
+#define offsetof(s,m) ((size_t)&(((s*)0)->m))
+#else
+#define offsetof __builtin_offsetof
+#endif
+
 extern uint64_t __readgsqword(unsigned long offset);
 
 typedef struct _LIST_ENTRY {
@@ -158,7 +164,7 @@ i32 wstr_cmpn(const u16* str1, const u16* str2, size_t count) {
 }
 
 PEB* get_PEB(void) {
-    return (PEB*)__readgsqword(__builtin_offsetof(TEB, ProcessEnvironmentBlock));
+    return (PEB*)__readgsqword(offsetof(TEB, ProcessEnvironmentBlock));
 }
 
 void* get_module(u16* name, size_t name_size) {