|  | commit 65a55c2ba891f6d2492477707f4a2e327a0b40dc | 
|  | Author: Abseil Team <absl-team@google.com> | 
|  | Date:   Wed May 29 11:12:50 2024 -0700 | 
|  |  | 
|  | Do not make std::filesystem::path hash available for macOS <10.15 | 
|  |  | 
|  | C++17 <filesystem> is only available on macOS 10.15 and newer, so | 
|  | do not enable this feature on older versions. | 
|  |  | 
|  | PiperOrigin-RevId: 638348906 | 
|  | Change-Id: I5e12db47513f7f8aeb9e55a3e253c866ec046d47 | 
|  |  | 
|  | diff --git a/absl/hash/internal/hash.h b/absl/hash/internal/hash.h | 
|  | index b7d89b01..03bf1839 100644 | 
|  | --- a/absl/hash/internal/hash.h | 
|  | +++ b/absl/hash/internal/hash.h | 
|  | @@ -599,7 +599,9 @@ H AbslHashValue(H hash_state, std::basic_string_view<Char> str) { | 
|  | #if defined(__cpp_lib_filesystem) && __cpp_lib_filesystem >= 201703L && \ | 
|  | !defined(_LIBCPP_HAS_NO_FILESYSTEM_LIBRARY) && \ | 
|  | (!defined(__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__) ||        \ | 
|  | -     __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ >= 130000) | 
|  | +     __ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__ >= 130000) &&       \ | 
|  | +    (!defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) ||         \ | 
|  | +     __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 101500) | 
|  |  | 
|  | #define ABSL_INTERNAL_STD_FILESYSTEM_PATH_HASH_AVAILABLE 1 | 
|  |  |