diff options
| author | hpa <hpa> | 2002-01-05 22:49:46 +0000 |
|---|---|---|
| committer | hpa <hpa> | 2002-01-05 22:49:46 +0000 |
| commit | 60707444d72c7a95f0bcaa10b4d8dc0bdf3914de (patch) | |
| tree | b43f154130a5ed994d93c75ac10a072d42203973 | |
| parent | 303adc96205cfa0930512d12573dccc697a9bd4c (diff) | |
| download | tftp-hpa-60707444d72c7a95f0bcaa10b4d8dc0bdf3914de.tar.gz | |
Correct handing of "struct in_pktinfo"tftp-hpa-0.29-pre1
| -rw-r--r-- | aclocal.m4 | 39 |
1 files changed, 32 insertions, 7 deletions
@@ -1,3 +1,16 @@ +dnl $Id$ +dnl ----------------------------------------------------------------------- +dnl +dnl Copyright 1999-2002 H. Peter Anvin - All Rights Reserved +dnl +dnl This program is free software; you can redistribute it and/or modify +dnl it under the terms of the GNU General Public License as published by +dnl the Free Software Foundation, Inc., 53 Temple Place Ste 330, +dnl Bostom MA 02111-1307, USA; either version 2 of the License, or +dnl (at your option) any later version; incorporated herein by reference. +dnl +dnl ----------------------------------------------------------------------- + dnl -------------------------------------------------------------------------- dnl PA_ADD_CFLAGS() dnl @@ -58,22 +71,36 @@ dnl Look for definition of struct in_pktinfo, which at least has an dnl ipi_addr member. Some versions of glibc lack struct in_pktinfo; dnl if so we need to include the definition ourselves -- but we only dnl want to do that if absolutely necessary! +dnl +dnl We don't use AC_CHECK_MEMBER() here, since at least in autoconf 2.52 +dnl this is broken for a member of structure type. dnl ------------------------------------------------------------------------ AH_TEMPLATE([HAVE_STRUCT_IN_PKTINFO], [Define if struct in_pktinfo is defined.]) AC_DEFUN(PA_STRUCT_IN_PKTINFO, - [AC_CHECK_MEMBER(struct in_pktinfo.ipi_addr, - [AC_DEFINE(HAVE_STRUCT_IN_PKTINFO)], - [], - [ + [AC_MSG_CHECKING([for definition of struct in_pktinfo]) + AC_TRY_COMPILE( + [ #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h> #include <arpa/inet.h> #include <stdlib.h> #include <sys/uio.h> - ])]) + ], + [ + struct in_pktinfo pktinfo; + int foo = sizeof(struct in_pktinfo); + void *quux = (void *)(&pktinfo.ipi_addr); + ], + [ + AC_DEFINE(HAVE_STRUCT_IN_PKTINFO) + AC_MSG_RESULT(yes) + ], + [ + AC_MSG_RESULT(no) + ])]) dnl -------------------------------------------------------------------------- dnl PA_HAVE_TCPWRAPPERS @@ -177,5 +204,3 @@ int main() [ AC_MSG_RESULT(no) ])]) - -dnl -------------------------------------------------------------------------- |