From a835672d9b56b7431aa595ed09a0fa6e3753e12c Mon Sep 17 00:00:00 2001
From: wuggy <ownedbywuigi@gmail.com>
Date: Thu, 16 Apr 2026 19:58:56 -0400
Subject: [PATCH] HOLY SHIT IT LAUNCHES

---
 modules/zlib/src/crc32_stub.c | 30 ++++++++++++------------------
 modules/zlib/src/x86.c        | 10 ++++++++++
 2 files changed, 22 insertions(+), 18 deletions(-)

diff --git a/modules/zlib/src/crc32_stub.c b/modules/zlib/src/crc32_stub.c
index d8d867642d..763d8b620b 100644
--- a/modules/zlib/src/crc32_stub.c
+++ b/modules/zlib/src/crc32_stub.c
@@ -1,29 +1,23 @@
-// Minimal CRC folding stubs for builds without CRC SIMD support.
+// Scalar CRC fallback for builds that disable CRC SIMD folding.
 
-#include "zutil.h"
-#include "crc32.h"
+#include "deflate.h"
+#include <string.h>
 
-// The folded CRC state type is declared in crc32.h as crc32_fold (or similar).
-// We don't use any SIMD here; we just fall back to scalar crc32.
-
-void crc_fold_init(crc32_fold *crc)
+void ZLIB_INTERNAL crc_fold_init(deflate_state *const s)
 {
-    // Initialize to standard CRC-32 initial value.
-    crc->crc = 0xffffffffu;
+    s->strm->adler = crc32(0L, Z_NULL, 0);
 }
 
-void crc_fold_copy(crc32_fold *crc,
-                   unsigned char *dst,
-                   const unsigned char *src,
-                   long len)
+void ZLIB_INTERNAL crc_fold_copy(deflate_state *const s,
+                                 unsigned char *dst,
+                                 const unsigned char *src,
+                                 long len)
 {
-    // Simple scalar copy + CRC update.
     memcpy(dst, src, (size_t)len);
-    crc->crc = crc32(crc->crc, src, (uInt)len);
+    s->strm->adler = crc32(s->strm->adler, dst, (uInt)len);
 }
 
-uint32_t crc_fold_512to32(crc32_fold *crc)
+unsigned ZLIB_INTERNAL crc_fold_512to32(deflate_state *const s)
 {
-    // Finalize CRC (invert bits as usual).
-    return crc->crc ^ 0xffffffffu;
+    return (unsigned)s->strm->adler;
 }
diff --git a/modules/zlib/src/x86.c b/modules/zlib/src/x86.c
index b3e248333f..38fe0fe30a 100644
--- a/modules/zlib/src/x86.c
+++ b/modules/zlib/src/x86.c
@@ -59,6 +59,11 @@ static void _x86_check_features(void)
     x86_cpu_enable_simd = x86_cpu_has_sse2 &&
                           x86_cpu_has_sse42 &&
                           x86_cpu_has_pclmulqdq;
+#if !defined(INFLATE_CHUNK_SIMD_SSE2) || !(INFLATE_CHUNK_SIMD_SSE2) || \
+    !defined(CRC32_SIMD_SSE42_PCLMUL) || !(CRC32_SIMD_SSE42_PCLMUL)
+    /* Runtime SIMD must stay off if required SIMD objects were not built. */
+    x86_cpu_enable_simd = 0;
+#endif
 #ifdef __APPLE__
     /* SIMD implementations not built on Darwin; disable even if CPU supports them */
     x86_cpu_enable_simd = 0;
@@ -122,5 +127,10 @@ static void _x86_check_features(void)
     x86_cpu_enable_simd = x86_cpu_has_sse2 &&
                           x86_cpu_has_sse42 &&
                           x86_cpu_has_pclmulqdq;
+#if !defined(INFLATE_CHUNK_SIMD_SSE2) || !(INFLATE_CHUNK_SIMD_SSE2) || \
+    !defined(CRC32_SIMD_SSE42_PCLMUL) || !(CRC32_SIMD_SSE42_PCLMUL)
+    /* Runtime SIMD must stay off if required SIMD objects were not built. */
+    x86_cpu_enable_simd = 0;
+#endif
 }
 #endif  /* _MSC_VER */