m4/inet_ntop.m4

   1 # inet_ntop.m4 serial 9
   2 dnl Copyright (C) 2005, 2006, 2008, 2009 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 AC_DEFUN([gl_INET_NTOP],
   8 [
   9   dnl Persuade Solaris <arpa/inet.h> to declare inet_ntop.
  10   AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
  11
  12   gl_REPLACE_ARPA_INET_H
  13
  14   dnl The AC_SEARCH_LIBS call is a hack to persuade the Solaris 8 linker to
  15   dnl find inet_ntop.
  16   dnl
  17   dnl It is the responsibility of gl_INET_NTOP's caller to arrange for
  18   dnl -lnsl if it is needed.  Normally -lnsl is not needed on Solaris 8,
  19   dnl since inet_ntop is needed only by getaddrinfo, and getaddrinfo
  20   dnl isn't built on Solaris 8.
  21   gl_save_LIBS=$LIBS
  22   AC_SEARCH_LIBS([inet_ntop], [nsl], [],
  23     [AC_REPLACE_FUNCS([inet_ntop])])
  24   LIBS=$gl_save_LIBS
  25
  26   gl_PREREQ_INET_NTOP
  27 ])
  28
  29 # Prerequisites of lib/inet_ntop.c.
  30 AC_DEFUN([gl_PREREQ_INET_NTOP], [
  31   AC_CHECK_DECLS([inet_ntop],,,[#include <arpa/inet.h>])
  32   if test $ac_cv_have_decl_inet_ntop = no; then
  33     HAVE_DECL_INET_NTOP=0
  34   fi
  35   AC_REQUIRE([gl_SOCKET_FAMILIES])
  36   AC_REQUIRE([AC_C_RESTRICT])
  37 ])