gdbsupport/gdb_sys_time.h

   1 /* Copyright (C) 2015-2023 Free Software Foundation, Inc.
   2
   3    This file is part of GDB.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  17
  18 #ifndef COMMON_GDB_SYS_TIME_H
  19 #define COMMON_GDB_SYS_TIME_H
  20
  21 #include <sys/time.h>
  22
  23 /* On MinGW-w64, gnulib's sys/time.h replaces 'struct timeval' and
  24    gettimeofday with versions that support 64-bit time_t, for POSIX
  25    compliance.  However, the gettimeofday replacement does not ever
  26    return time_t values larger than 31-bit, as it simply returns the
  27    system's gettimeofday's (signed) 32-bit result as (signed) 64-bit.
  28    Because we don't really need the POSIX compliance, and it ends up
  29    causing conflicts with other libraries we use that don't use gnulib
  30    and thus work with the native struct timeval, such as Winsock2's
  31    native 'select' and libiberty, simply undefine away gnulib's
  32    replacements.  */
  33 #if GNULIB_defined_struct_timeval
  34 # undef timeval
  35 # undef gettimeofday
  36 #endif
  37
  38 #endif /* COMMON_GDB_SYS_TIME_H */