# spawn_h.m4 serial 1
dnl Copyright (C) 2008 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.

dnl Written by Bruno Haible.

AC_DEFUN([gl_SPAWN_H],
[
  dnl Use AC_REQUIRE here, so that the default behavior below is expanded
  dnl once only, before all statements that occur in other macros.
  AC_REQUIRE([gl_SPAWN_H_DEFAULTS])

  gl_CHECK_NEXT_HEADERS([spawn.h])

  AC_CHECK_HEADERS_ONCE([spawn.h])
  if test $ac_cv_header_spawn_h = yes; then
    HAVE_SPAWN_H=1
  else
    HAVE_SPAWN_H=0
  fi
  AC_SUBST([HAVE_SPAWN_H])

  AC_REQUIRE([AC_C_RESTRICT])
])

dnl Unconditionally enables the replacement of <spawn.h>.
AC_DEFUN([gl_REPLACE_SPAWN_H],
[
  AC_REQUIRE([gl_SPAWN_H_DEFAULTS])
  SPAWN_H='spawn.h'
])

AC_DEFUN([gl_SPAWN_MODULE_INDICATOR],
[
  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
  AC_REQUIRE([gl_SPAWN_H_DEFAULTS])
  GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
])

AC_DEFUN([gl_SPAWN_H_DEFAULTS],
[
  GNULIB_POSIX_SPAWN=0;                       AC_SUBST([GNULIB_POSIX_SPAWN])
  GNULIB_POSIX_SPAWNP=0;                      AC_SUBST([GNULIB_POSIX_SPAWNP])
  GNULIB_POSIX_SPAWN_FILE_ACTIONS_INIT=0;     AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_INIT])
  GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE=0; AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE])
  GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2=0;  AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2])
  GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN=0;  AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN])
  GNULIB_POSIX_SPAWN_FILE_ACTIONS_DESTROY=0;  AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_DESTROY])
  GNULIB_POSIX_SPAWNATTR_INIT=0;              AC_SUBST([GNULIB_POSIX_SPAWNATTR_INIT])
  GNULIB_POSIX_SPAWNATTR_GETFLAGS=0;          AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETFLAGS])
  GNULIB_POSIX_SPAWNATTR_SETFLAGS=0;          AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETFLAGS])
  GNULIB_POSIX_SPAWNATTR_GETPGROUP=0;         AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETPGROUP])
  GNULIB_POSIX_SPAWNATTR_SETPGROUP=0;         AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETPGROUP])
  GNULIB_POSIX_SPAWNATTR_GETSCHEDPARAM=0;     AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETSCHEDPARAM])
  GNULIB_POSIX_SPAWNATTR_SETSCHEDPARAM=0;     AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETSCHEDPARAM])
  GNULIB_POSIX_SPAWNATTR_GETSCHEDPOLICY=0;    AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETSCHEDPOLICY])
  GNULIB_POSIX_SPAWNATTR_SETSCHEDPOLICY=0;    AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETSCHEDPOLICY])
  GNULIB_POSIX_SPAWNATTR_GETSIGDEFAULT=0;     AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETSIGDEFAULT])
  GNULIB_POSIX_SPAWNATTR_SETSIGDEFAULT=0;     AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETSIGDEFAULT])
  GNULIB_POSIX_SPAWNATTR_GETSIGMASK=0;        AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETSIGMASK])
  GNULIB_POSIX_SPAWNATTR_SETSIGMASK=0;        AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETSIGMASK])
  GNULIB_POSIX_SPAWNATTR_DESTROY=0;           AC_SUBST([GNULIB_POSIX_SPAWNATTR_DESTROY])
  dnl Assume proper GNU behavior unless another module says otherwise.
  HAVE_POSIX_SPAWN=1;     AC_SUBST([HAVE_POSIX_SPAWN])
  REPLACE_POSIX_SPAWN=0;  AC_SUBST([REPLACE_POSIX_SPAWN])
  SPAWN_H='';             AC_SUBST([SPAWN_H])
])