Add a "acinclude.m4" file that defines a "AC_ETHEREAL_STRUCT_SA_LEN"

macro (modeled after similar macros provided with "autoconf") to check
whether "struct sockaddr" has an "sa_len" member, and defines or
undefines "HAVE_SA_LEN" appropriately.  Use it instead of
"AC_LBL_SOCKADDR_SA_LEN", and use "HAVE_SA_LEN" instead of
"HAVE_SOCKADDR_SA_LEN".


git-svn-id: http://anonsvn.wireshark.org/wireshark/trunk@96 f5534014-38df-0310-8fa8-9805f1628bb7

1 files changed, 69 insertions, 0 deletions

diff --git a/acinclude.m4 b/acinclude.m4
new file mode 100644
index 0000000000..e5b6615eca
--- /dev/null
+++ b/acinclude.m4
@@ -0,0 +1,69 @@
+dnl Macros that test for specific features.
+dnl This file is part of Autoconf.
+dnl Copyright (C) 1992, 1993, 1994, 1995, 1996 Free Software Foundation, Inc.
+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; either version 2, or (at your option)
+dnl any later version.
+dnl
+dnl This program is distributed in the hope that it will be useful,
+dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
+dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+dnl GNU General Public License for more details.
+dnl
+dnl You should have received a copy of the GNU General Public License
+dnl along with this program; if not, write to the Free Software
+dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+dnl 02111-1307, USA.
+dnl
+dnl As a special exception, the Free Software Foundation gives unlimited
+dnl permission to copy, distribute and modify the configure scripts that
+dnl are the output of Autoconf.  You need not follow the terms of the GNU
+dnl General Public License when using or distributing such scripts, even
+dnl though portions of the text of Autoconf appear in them.  The GNU
+dnl General Public License (GPL) does govern all other use of the material
+dnl that constitutes the Autoconf program.
+dnl
+dnl Certain portions of the Autoconf source text are designed to be copied
+dnl (in certain cases, depending on the input) into the output of
+dnl Autoconf.  We call these the "data" portions.  The rest of the Autoconf
+dnl source text consists of comments plus executable code that decides which
+dnl of the data portions to output in any given case.  We call these
+dnl comments and executable code the "non-data" portions.  Autoconf never
+dnl copies any of the non-data portions into its output.
+dnl
+dnl This special exception to the GPL applies to versions of Autoconf
+dnl released by the Free Software Foundation.  When you make and
+dnl distribute a modified version of Autoconf, you may extend this special
+dnl exception to the GPL to apply to your modified version as well, *unless*
+dnl your modified version has the potential to copy into its output some
+dnl of the text that was the non-data portion of the version that you started
+dnl with.  (In other words, unless your change moves or copies text from
+dnl the non-data portions to the data portions.)  If your modification has
+dnl such potential, you must delete any notice of this special exception
+dnl to the GPL from your modified version.
+dnl
+dnl Written by David MacKenzie, with help from
+dnl Franc,ois Pinard, Karl Berry, Richard Pixley, Ian Lance Taylor,
+dnl Roland McGrath, Noah Friedman, david d zuhn, and many others.
+
+dnl AC_STRUCT_ST_BLKSIZE extracted from the file in qustion,
+dnl "acspecific.m4" in GNU Autoconf 2.12, and turned into
+dnl AC_ETHEREAL_STRUCT_SA_LEN, which checks if "struct sockaddr"
+dnl has the 4.4BSD "sa_len" member, and defines HAVE_SA_LEN; that's
+dnl what's in this file.
+dnl Done by Guy Harris <guy@netapp.com> on 1998-11-14. 
+
+dnl ### Checks for structure members
+
+
+AC_DEFUN(AC_ETHEREAL_STRUCT_SA_LEN,
+[AC_CACHE_CHECK([for sa_len in struct sockaddr], ac_cv_ethereal_struct_sa_len,
+[AC_TRY_COMPILE([#include <sys/types.h>
+#include <sys/socket.h>], [struct sockaddr s; s.sa_len;],
+ac_cv_ethereal_struct_sa_len=yes, ac_cv_ethereal_struct_sa_len=no)])
+if test $ac_cv_ethereal_struct_sa_len = yes; then
+  AC_DEFINE(HAVE_SA_LEN)
+fi
+])