https://github.com/file/file/commit/8dc5513908381a14981b16a85d59ba054bf4df52 From 8dc5513908381a14981b16a85d59ba054bf4df52 Mon Sep 17 00:00:00 2001 From: Christos Zoulas Date: Mon, 31 Jul 2023 15:56:12 +0000 Subject: [PATCH] Check if we support _TIME_BITS. (Werner Fink) --- a/configure.ac +++ b/configure.ac @@ -152,6 +152,18 @@ AC_TYPE_UINT64_T AC_TYPE_INT64_T AC_TYPE_INTPTR_T AC_TYPE_UINTPTR_T +m4_ifdef([AC_SYS_YEAR2038], [AC_SYS_YEAR2038], [ +# GNU libc only allows setting _TIME_BITS when FILE_OFFSET_BITS is also set. +# GNU libc defines __TIMESIZE on systems where _TIME_BITS can be set. +AS_IF([test X"$ac_cv_sys_file_offset_bits" = X"64"], [ + AC_CHECK_DECL(__TIMESIZE, [ + AC_DEFINE([_TIME_BITS], [64], [Number of bits in a timestamp, on hosts where this is settable.]) + ], [], [ +AC_INCLUDES_DEFAULT +#include + ]) + ]) +]) AC_FUNC_MMAP AC_FUNC_FORK AC_FUNC_MBRTOWC