From 008a3a1a0b7d2bd1ebadc29d4d60f33b9816b1d6 Mon Sep 17 00:00:00 2001
From: Carlo Bramini <carlo_bramini@users.sourceforge.net>
Date: Tue, 7 Apr 2026 09:26:47 +0200
Subject: [PATCH] gh-148200: fix warning on missing safe memzero() on CYGWIN

This patch fixes issue #148200.
---
 Misc/sbom.spdx.json          | 4 ++--
 Modules/_hacl/Lib_Memzero0.c | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/Misc/sbom.spdx.json b/Misc/sbom.spdx.json
index ed9c08016808bb..4f8ebdc03cf591 100644
--- a/Misc/sbom.spdx.json
+++ b/Misc/sbom.spdx.json
@@ -608,11 +608,11 @@
       "checksums": [
         {
           "algorithm": "SHA1",
-          "checksumValue": "0a0b7f3714167ad45ddf5a6a48d76f525a119c9c"
+          "checksumValue": "67a029736da5efe96f1b2d41b92f00934b955253"
         },
         {
           "algorithm": "SHA256",
-          "checksumValue": "135d4afb4812468885c963c9c87a55ba5fae9181df4431af5fbad08588dda229"
+          "checksumValue": "0d80c2e3f5ff3b31ef0d435fc3196660df89ccf95bdcbb6545dc2f9df07bec9f"
         }
       ],
       "fileName": "Modules/_hacl/Lib_Memzero0.c"
diff --git a/Modules/_hacl/Lib_Memzero0.c b/Modules/_hacl/Lib_Memzero0.c
index f94e0e2254a912..7ab722e737c2ef 100644
--- a/Modules/_hacl/Lib_Memzero0.c
+++ b/Modules/_hacl/Lib_Memzero0.c
@@ -31,7 +31,7 @@
 #include <string.h>
 #endif
 
-#if defined(__FreeBSD__) || defined(__NetBSD__)
+#if defined(__CYGWIN__) || defined(__FreeBSD__) || defined(__NetBSD__)
 #include <strings.h>
 #endif
 
@@ -57,7 +57,7 @@ void Lib_Memzero0_memzero0(void *dst, uint64_t len) {
     SecureZeroMemory(dst, len_);
   #elif defined(__APPLE__) && defined(__MACH__) && defined(APPLE_HAS_MEMSET_S)
     memset_s(dst, len_, 0, len_);
-  #elif (defined(__linux__) && !defined(LINUX_NO_EXPLICIT_BZERO)) || defined(__FreeBSD__) || defined(__OpenBSD__)
+  #elif (defined(__linux__) && !defined(LINUX_NO_EXPLICIT_BZERO)) || defined(__CYGWIN__) || defined(__FreeBSD__) || defined(__OpenBSD__)
     explicit_bzero(dst, len_);
   #elif defined(__NetBSD__)
     explicit_memset(dst, 0, len_);