1 # spawn_h.m4 serial 16 2 dnl Copyright (C) 2008-2012 Free Software Foundation, Inc. 3 dnl This file is free software; the Free Software Foundation 4 dnl gives unlimited permission to copy and/or distribute it, 5 dnl with or without modifications, as long as this notice is preserved. 6 7 dnl Written by Bruno Haible. 8 9 AC_DEFUN([gl_SPAWN_H], 10 [ 11 dnl Use AC_REQUIRE here, so that the default behavior below is expanded 12 dnl once only, before all statements that occur in other macros. 13 AC_REQUIRE([gl_SPAWN_H_DEFAULTS]) 14 15 dnl <spawn.h> is always overridden, because of GNULIB_POSIXCHECK. 16 gl_CHECK_NEXT_HEADERS([spawn.h]) 17 18 if test $ac_cv_header_spawn_h = yes; then 19 HAVE_SPAWN_H=1 20 AC_CHECK_TYPES([posix_spawnattr_t], [], [HAVE_POSIX_SPAWNATTR_T=0], [[ 21 #include <spawn.h> 22 ]]) 23 AC_CHECK_TYPES([posix_spawn_file_actions_t], [], 24 [HAVE_POSIX_SPAWN_FILE_ACTIONS_T=0], [[ 25 #include <spawn.h> 26 ]]) 27 else 28 HAVE_SPAWN_H=0 29 HAVE_POSIX_SPAWNATTR_T=0 30 HAVE_POSIX_SPAWN_FILE_ACTIONS_T=0 31 fi 32 AC_SUBST([HAVE_SPAWN_H]) 33 34 dnl Ensure the type pid_t gets defined. 35 AC_REQUIRE([AC_TYPE_PID_T]) 36 37 dnl Ensure the type mode_t gets defined. 38 AC_REQUIRE([AC_TYPE_MODE_T]) 39 40 AC_REQUIRE([gl_HAVE_POSIX_SPAWN]) 41 42 AC_REQUIRE([AC_C_RESTRICT]) 43 44 dnl Check for declarations of anything we want to poison if the 45 dnl corresponding gnulib module is not in use. 46 gl_WARN_ON_USE_PREPARE([[#include <spawn.h> 47 ]], [posix_spawn posix_spawnp posix_spawnattr_init posix_spawnattr_destroy 48 posix_spawnattr_getsigdefault posix_spawnattr_setsigdefault 49 posix_spawnattr_getsigmask posix_spawnattr_setsigmask 50 posix_spawnattr_getflags posix_spawnattr_setflags 51 posix_spawnattr_getpgroup posix_spawnattr_setpgroup 52 posix_spawnattr_getschedpolicy posix_spawnattr_setschedpolicy 53 posix_spawnattr_getschedparam posix_spawnattr_setschedparam 54 posix_spawn_file_actions_init posix_spawn_file_actions_destroy 55 posix_spawn_file_actions_addopen posix_spawn_file_actions_addclose 56 posix_spawn_file_actions_adddup2]) 57 ]) 58 59 dnl Checks whether the system has the functions posix_spawn. 60 dnl Sets ac_cv_func_posix_spawn and HAVE_POSIX_SPAWN. 61 AC_DEFUN([gl_HAVE_POSIX_SPAWN], 62 [ 63 dnl Use AC_REQUIRE here, so that the default behavior below is expanded 64 dnl once only, before all statements that occur in other macros. 65 AC_REQUIRE([gl_SPAWN_H_DEFAULTS]) 66 67 AC_CHECK_FUNCS_ONCE([posix_spawn]) 68 if test $ac_cv_func_posix_spawn != yes; then 69 HAVE_POSIX_SPAWN=0 70 fi 71 ]) 72 73 AC_DEFUN([gl_SPAWN_MODULE_INDICATOR], 74 [ 75 dnl Use AC_REQUIRE here, so that the default settings are expanded once only. 76 AC_REQUIRE([gl_SPAWN_H_DEFAULTS]) 77 gl_MODULE_INDICATOR_SET_VARIABLE([$1]) 78 dnl Define it also as a C macro, for the benefit of the unit tests. 79 gl_MODULE_INDICATOR_FOR_TESTS([$1]) 80 ]) 81 82 AC_DEFUN([gl_SPAWN_H_DEFAULTS], 83 [ 84 GNULIB_POSIX_SPAWN=0; AC_SUBST([GNULIB_POSIX_SPAWN]) 85 GNULIB_POSIX_SPAWNP=0; AC_SUBST([GNULIB_POSIX_SPAWNP]) 86 GNULIB_POSIX_SPAWN_FILE_ACTIONS_INIT=0; AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_INIT]) 87 GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE=0; AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE]) 88 GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2=0; AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2]) 89 GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN=0; AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN]) 90 GNULIB_POSIX_SPAWN_FILE_ACTIONS_DESTROY=0; AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_DESTROY]) 91 GNULIB_POSIX_SPAWNATTR_INIT=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_INIT]) 92 GNULIB_POSIX_SPAWNATTR_GETFLAGS=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETFLAGS]) 93 GNULIB_POSIX_SPAWNATTR_SETFLAGS=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETFLAGS]) 94 GNULIB_POSIX_SPAWNATTR_GETPGROUP=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETPGROUP]) 95 GNULIB_POSIX_SPAWNATTR_SETPGROUP=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETPGROUP]) 96 GNULIB_POSIX_SPAWNATTR_GETSCHEDPARAM=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETSCHEDPARAM]) 97 GNULIB_POSIX_SPAWNATTR_SETSCHEDPARAM=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETSCHEDPARAM]) 98 GNULIB_POSIX_SPAWNATTR_GETSCHEDPOLICY=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETSCHEDPOLICY]) 99 GNULIB_POSIX_SPAWNATTR_SETSCHEDPOLICY=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETSCHEDPOLICY]) 100 GNULIB_POSIX_SPAWNATTR_GETSIGDEFAULT=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETSIGDEFAULT]) 101 GNULIB_POSIX_SPAWNATTR_SETSIGDEFAULT=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETSIGDEFAULT]) 102 GNULIB_POSIX_SPAWNATTR_GETSIGMASK=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETSIGMASK]) 103 GNULIB_POSIX_SPAWNATTR_SETSIGMASK=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETSIGMASK]) 104 GNULIB_POSIX_SPAWNATTR_DESTROY=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_DESTROY]) 105 dnl Assume proper GNU behavior unless another module says otherwise. 106 HAVE_POSIX_SPAWN=1; AC_SUBST([HAVE_POSIX_SPAWN]) 107 HAVE_POSIX_SPAWNATTR_T=1; AC_SUBST([HAVE_POSIX_SPAWNATTR_T]) 108 HAVE_POSIX_SPAWN_FILE_ACTIONS_T=1; 109 AC_SUBST([HAVE_POSIX_SPAWN_FILE_ACTIONS_T]) 110 REPLACE_POSIX_SPAWN=0; AC_SUBST([REPLACE_POSIX_SPAWN]) 111 REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE=0; 112 AC_SUBST([REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE]) 113 REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2=0; 114 AC_SUBST([REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2]) 115 REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN=0; 116 AC_SUBST([REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN]) 117 ]) 118
