mirror of https://gitee.com/openkylin/wget.git
131 lines
6.0 KiB
Plaintext
131 lines
6.0 KiB
Plaintext
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# spawn_h.m4 serial 17
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dnl Copyright (C) 2008-2019 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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dnl Written by Bruno Haible.
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AC_DEFUN([gl_SPAWN_H],
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[
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dnl Use AC_REQUIRE here, so that the default behavior below is expanded
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dnl once only, before all statements that occur in other macros.
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AC_REQUIRE([gl_SPAWN_H_DEFAULTS])
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dnl <spawn.h> is always overridden, because of GNULIB_POSIXCHECK.
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gl_CHECK_NEXT_HEADERS([spawn.h])
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if test $ac_cv_header_spawn_h = yes; then
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HAVE_SPAWN_H=1
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AC_CHECK_TYPES([posix_spawnattr_t], [], [HAVE_POSIX_SPAWNATTR_T=0], [[
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#include <spawn.h>
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]])
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AC_CHECK_TYPES([posix_spawn_file_actions_t], [],
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[HAVE_POSIX_SPAWN_FILE_ACTIONS_T=0], [[
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#include <spawn.h>
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]])
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else
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HAVE_SPAWN_H=0
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HAVE_POSIX_SPAWNATTR_T=0
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HAVE_POSIX_SPAWN_FILE_ACTIONS_T=0
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fi
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AC_SUBST([HAVE_SPAWN_H])
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dnl Ensure the type pid_t gets defined.
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AC_REQUIRE([AC_TYPE_PID_T])
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dnl Ensure the type mode_t gets defined.
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AC_REQUIRE([AC_TYPE_MODE_T])
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AC_REQUIRE([gl_HAVE_POSIX_SPAWN])
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AC_REQUIRE([AC_C_RESTRICT])
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dnl Check for declarations of anything we want to poison if the
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dnl corresponding gnulib module is not in use.
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gl_WARN_ON_USE_PREPARE([[#include <spawn.h>
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]], [posix_spawn posix_spawnp posix_spawnattr_init posix_spawnattr_destroy
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posix_spawnattr_getsigdefault posix_spawnattr_setsigdefault
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posix_spawnattr_getsigmask posix_spawnattr_setsigmask
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posix_spawnattr_getflags posix_spawnattr_setflags
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posix_spawnattr_getpgroup posix_spawnattr_setpgroup
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posix_spawnattr_getschedpolicy posix_spawnattr_setschedpolicy
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posix_spawnattr_getschedparam posix_spawnattr_setschedparam
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posix_spawn_file_actions_init posix_spawn_file_actions_destroy
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posix_spawn_file_actions_addopen posix_spawn_file_actions_addclose
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posix_spawn_file_actions_adddup2 posix_spawn_file_actions_addchdir])
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])
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dnl Checks whether the system has the functions posix_spawn.
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dnl Sets ac_cv_func_posix_spawn and HAVE_POSIX_SPAWN.
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AC_DEFUN([gl_HAVE_POSIX_SPAWN],
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[
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dnl Use AC_REQUIRE here, so that the default behavior below is expanded
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dnl once only, before all statements that occur in other macros.
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AC_REQUIRE([gl_SPAWN_H_DEFAULTS])
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LIB_POSIX_SPAWN=
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AC_SUBST([LIB_POSIX_SPAWN])
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gl_saved_libs=$LIBS
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AC_SEARCH_LIBS([posix_spawn], [rt],
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[test "$ac_cv_search_posix_spawn" = "none required" ||
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LIB_POSIX_SPAWN=$ac_cv_search_posix_spawn])
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AC_CHECK_FUNCS([posix_spawn])
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LIBS=$gl_saved_libs
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if test $ac_cv_func_posix_spawn != yes; then
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HAVE_POSIX_SPAWN=0
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fi
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])
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AC_DEFUN([gl_SPAWN_MODULE_INDICATOR],
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[
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dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
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AC_REQUIRE([gl_SPAWN_H_DEFAULTS])
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gl_MODULE_INDICATOR_SET_VARIABLE([$1])
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dnl Define it also as a C macro, for the benefit of the unit tests.
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gl_MODULE_INDICATOR_FOR_TESTS([$1])
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])
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AC_DEFUN([gl_SPAWN_H_DEFAULTS],
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[
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GNULIB_POSIX_SPAWN=0; AC_SUBST([GNULIB_POSIX_SPAWN])
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GNULIB_POSIX_SPAWNP=0; AC_SUBST([GNULIB_POSIX_SPAWNP])
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GNULIB_POSIX_SPAWN_FILE_ACTIONS_INIT=0; AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_INIT])
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GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR=0; AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR])
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GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE=0; AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE])
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GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2=0; AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2])
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GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN=0; AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN])
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GNULIB_POSIX_SPAWN_FILE_ACTIONS_DESTROY=0; AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_DESTROY])
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GNULIB_POSIX_SPAWNATTR_INIT=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_INIT])
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GNULIB_POSIX_SPAWNATTR_GETFLAGS=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETFLAGS])
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GNULIB_POSIX_SPAWNATTR_SETFLAGS=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETFLAGS])
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GNULIB_POSIX_SPAWNATTR_GETPGROUP=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETPGROUP])
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GNULIB_POSIX_SPAWNATTR_SETPGROUP=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETPGROUP])
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GNULIB_POSIX_SPAWNATTR_GETSCHEDPARAM=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETSCHEDPARAM])
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GNULIB_POSIX_SPAWNATTR_SETSCHEDPARAM=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETSCHEDPARAM])
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GNULIB_POSIX_SPAWNATTR_GETSCHEDPOLICY=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETSCHEDPOLICY])
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GNULIB_POSIX_SPAWNATTR_SETSCHEDPOLICY=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETSCHEDPOLICY])
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GNULIB_POSIX_SPAWNATTR_GETSIGDEFAULT=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETSIGDEFAULT])
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GNULIB_POSIX_SPAWNATTR_SETSIGDEFAULT=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETSIGDEFAULT])
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GNULIB_POSIX_SPAWNATTR_GETSIGMASK=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETSIGMASK])
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GNULIB_POSIX_SPAWNATTR_SETSIGMASK=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETSIGMASK])
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GNULIB_POSIX_SPAWNATTR_DESTROY=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_DESTROY])
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dnl Assume proper GNU behavior unless another module says otherwise.
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HAVE_POSIX_SPAWN=1; AC_SUBST([HAVE_POSIX_SPAWN])
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HAVE_POSIX_SPAWNATTR_T=1; AC_SUBST([HAVE_POSIX_SPAWNATTR_T])
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HAVE_POSIX_SPAWN_FILE_ACTIONS_T=1;
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AC_SUBST([HAVE_POSIX_SPAWN_FILE_ACTIONS_T])
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HAVE_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR=1;
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AC_SUBST([HAVE_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR])
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REPLACE_POSIX_SPAWN=0; AC_SUBST([REPLACE_POSIX_SPAWN])
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REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR=0;
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AC_SUBST([REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR])
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REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE=0;
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AC_SUBST([REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE])
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REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2=0;
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AC_SUBST([REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2])
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REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN=0;
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AC_SUBST([REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN])
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])
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