File 0004-HAVE_EXPLICIT_BZERO.patch of Package ceph-ceph-16.2.15

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File 0004-HAVE_EXPLICIT_BZERO.patch of Package ceph-ceph-16.2.15

diff --git a/cmake/modules/CephChecks.cmake b/cmake/modules/CephChecks.cmake
index fcde99f4b07..bd971f91d64 100644
--- a/cmake/modules/CephChecks.cmake
+++ b/cmake/modules/CephChecks.cmake
@@ -82,6 +82,7 @@ check_symbol_exists(F_SETPIPE_SZ "linux/fcntl.h" CEPH_HAVE_SETPIPE_SZ)
 check_symbol_exists(__func__ "" HAVE_FUNC)
 check_symbol_exists(__PRETTY_FUNCTION__ "" HAVE_PRETTY_FUNC)
 check_symbol_exists(getentropy "unistd.h" HAVE_GETENTROPY)
+check_symbol_exists(explicit_bzero "string.h" HAVE_EXPLICIT_BZERO)
 
 include(CheckCXXSourceCompiles)
 check_cxx_source_compiles("
diff --git a/src/common/compat.cc b/src/common/compat.cc
index 82b57ad94b5..9ae7c83c969 100644
--- a/src/common/compat.cc
+++ b/src/common/compat.cc
@@ -241,8 +241,10 @@ int ceph_memzero_s(void *dest, size_t destsz, size_t count) {
     return memset_s(dest, destsz, 0, count);
 #elif defined(_WIN32)
     SecureZeroMemory(dest, count);
-#else
+#elif HAVE_EXPLICIT_BZERO
     explicit_bzero(dest, count);
+#else
+    bzero(dest, count);
 #endif
     return 0;
 }

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File 0004-HAVE_EXPLICIT_BZERO.patch of Package ceph-ceph-16.2.15

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