# netdb_h.m4 serial 12

dnl Copyright (C) 2008-2020 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.

AC_DEFUN([gl_HEADER_NETDB],

[

  AC_REQUIRE([gl_NETDB_H_DEFAULTS])

  gl_CHECK_NEXT_HEADERS([netdb.h])

  if test $ac_cv_header_netdb_h = yes; then

    HAVE_NETDB_H=1

  else

    HAVE_NETDB_H=0

  fi

  AC_SUBST([HAVE_NETDB_H])

  dnl Check for declarations of anything we want to poison if the

  dnl corresponding gnulib module is not in use.

  gl_WARN_ON_USE_PREPARE([[#include <netdb.h>]],

    [getaddrinfo freeaddrinfo gai_strerror getnameinfo])

])

AC_DEFUN([gl_NETDB_MODULE_INDICATOR],

[

  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.

  AC_REQUIRE([gl_NETDB_H_DEFAULTS])

  gl_MODULE_INDICATOR_SET_VARIABLE([$1])

  dnl Define it also as a C macro, for the benefit of the unit tests.

  gl_MODULE_INDICATOR_FOR_TESTS([$1])

])

AC_DEFUN([gl_NETDB_H_DEFAULTS],

[

  GNULIB_GETADDRINFO=0; AC_SUBST([GNULIB_GETADDRINFO])

  dnl Assume proper GNU behavior unless another module says otherwise.

  HAVE_STRUCT_ADDRINFO=1;   AC_SUBST([HAVE_STRUCT_ADDRINFO])

  HAVE_DECL_FREEADDRINFO=1; AC_SUBST([HAVE_DECL_FREEADDRINFO])

  HAVE_DECL_GAI_STRERROR=1; AC_SUBST([HAVE_DECL_GAI_STRERROR])

  HAVE_DECL_GETADDRINFO=1;  AC_SUBST([HAVE_DECL_GETADDRINFO])

  HAVE_DECL_GETNAMEINFO=1;  AC_SUBST([HAVE_DECL_GETNAMEINFO])

  REPLACE_GAI_STRERROR=0;   AC_SUBST([REPLACE_GAI_STRERROR])

  REPLACE_GETADDRINFO=0;    AC_SUBST([REPLACE_GETADDRINFO])

])