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Viewing changes to m4/ac_caolan_func_which_gethostbyname_r.m4

  • Committer: Bazaar Package Importer
  • Author(s): Steve Langasek
  • Date: 2008-08-02 11:49:53 UTC
  • mfrom: (2.1.10 intrepid)
  • Revision ID: james.westby@ubuntu.com-20080802114953-0qdeowgl63k42n2c
Tags: 0.82-4
http://bugs.debian.org/493303
* Fix a typo in the freetds-common description, ugh
* Versioned replaces of libct4 by freetds-common, since the current one
  obviously doesn't have overlapping files.
* tdsodbc: check for /var/lib/odbc existence before removing it in the
  postinst, since there are cases where it won't exist on upgrade (i.e.,
  if the driver was never enabled in the first place).  Closes: #493303.

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m4/ac_caolan_func_which_gethostbyname_r.m4
 
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dnl $Id: ac_caolan_func_which_gethostbyname_r.m4,v 1.3 2006/03/29 16:24:36 freddy77 Exp $
 
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##
 
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# @synopsis AC_caolan_FUNC_WHICH_GETHOSTBYNAME_R
 
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#
 
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# Provides a test to determine the correct 
 
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# way to call gethostbyname_r
 
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#
 
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# defines HAVE_FUNC_GETHOSTBYNAME_R_6 if it needs 6 arguments (e.g linux)
 
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# defines HAVE_FUNC_GETHOSTBYNAME_R_5 if it needs 5 arguments (e.g. solaris)
 
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# defines HAVE_FUNC_GETHOSTBYNAME_R_3 if it needs 3 arguments (e.g. osf/1)
 
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#
 
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# if used in conjunction in gethostname.c the api demonstrated
 
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# in test.c can be used regardless of which gethostbyname_r 
 
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# exists. These example files found at
 
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# http://www.csn.ul.ie/~caolan/publink/gethostbyname_r
 
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#
 
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# @author Caolan McNamara <caolan@skynet.ie>
 
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# updated with AC_LINK_IFELSE March 2006 <jklowden@schemamania.org>.
 
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# Could probably be replaced with better version: 
 
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#       http://autoconf-archive.cryp.to/ax_func_which_gethostbyname_r.html
 
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#
 
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# based on David Arnold's autoconf suggestion in the threads faq
 
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##
 
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AC_DEFUN([AC_caolan_FUNC_WHICH_GETHOSTBYNAME_R],
 
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[ac_save_CFLAGS=$CFLAGS
 
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CFLAGS="$CFLAGS $NETWORK_LIBS"
 
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AC_CACHE_CHECK(for which type of gethostbyname_r, ac_cv_func_which_gethostname_r, [
 
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        AC_LINK_IFELSE([AC_LANG_PROGRAM([
 
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#               include <netdb.h> 
 
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        ],      [
 
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        char *name;
 
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        struct hostent *he;
 
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        struct hostent_data data;
 
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        (void) gethostbyname_r(name, he, &data);
 
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                ])],ac_cv_func_which_gethostname_r=three, 
 
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                        [
 
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dnl                     ac_cv_func_which_gethostname_r=no
 
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  AC_LINK_IFELSE([AC_LANG_PROGRAM([
 
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#   include <netdb.h>
 
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  ], [[
 
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        char *name;
 
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        struct hostent *he, *res;
 
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        char buffer[2048];
 
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        int buflen = 2048;
 
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        int h_errnop;
 
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        (void) gethostbyname_r(name, he, buffer, buflen, &res, &h_errnop)
 
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  ]])],ac_cv_func_which_gethostname_r=six,
 
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  [
 
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dnl  ac_cv_func_which_gethostname_r=no
 
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  AC_LINK_IFELSE([AC_LANG_PROGRAM([
 
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#   include <netdb.h>
 
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  ], [[
 
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                        char *name;
 
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                        struct hostent *he;
 
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                        char buffer[2048];
 
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                        int buflen = 2048;
 
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                        int h_errnop;
 
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                        (void) gethostbyname_r(name, he, buffer, buflen, &h_errnop)
 
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  ]])],ac_cv_func_which_gethostname_r=five,ac_cv_func_which_gethostname_r=no)
 
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  ]
 
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  )
 
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                        ]
 
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                )])
 
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if test $ac_cv_func_which_gethostname_r = six; then
 
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  AC_DEFINE(HAVE_FUNC_GETHOSTBYNAME_R_6, 1, [Define to 1 if your system provides the 6-parameter version of gethostbyname_r().])
 
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elif test $ac_cv_func_which_gethostname_r = five; then
 
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  AC_DEFINE(HAVE_FUNC_GETHOSTBYNAME_R_5, 1, [Define to 1 if your system provides the 5-parameter version of gethostbyname_r().])
 
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elif test $ac_cv_func_which_gethostname_r = three; then
 
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  AC_DEFINE(HAVE_FUNC_GETHOSTBYNAME_R_3, 1, [Define to 1 if your system provides the 3-parameter version of gethostbyname_r().])
 
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fi
 
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CFLAGS=$ac_save_CFLAGS
 
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])
 
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