mdw@git.distorted.org.uk Git - adns/blob - aclocal.m4

   1 # aclocal.m4 - package-specific macros for autoconf
   2 #
   3 #  This file is part of adns, which is Copyright (C) 1997-1999 Ian Jackson
   4 #
   5 #  This program is free software; you can redistribute it and/or modify
   6 #  it under the terms of the GNU General Public License as published by
   7 #  the Free Software Foundation; either version 2, or (at your option)
   8 #  any later version.
   9 #
  10 #  This program is distributed in the hope that it will be useful,
  11 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 #  GNU General Public License for more details.
  14 #
  15 #  You should have received a copy of the GNU General Public License
  16 #  along with this program; if not, write to the Free Software Foundation,
  17 #  Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18
  19 dnl DPKG_CACHED_TRY_COMPILE(<description>,<cachevar>,<include>,<program>,<ifyes>,<ifno>)
  20 define(DPKG_CACHED_TRY_COMPILE,[
  21  AC_MSG_CHECKING($1)
  22  AC_CACHE_VAL($2,[
  23   AC_TRY_COMPILE([$3],[$4],[$2=yes],[$2=no])
  24  ])
  25  if test "x$$2" = xyes; then
  26   true
  27   $5
  28  else
  29   true
  30   $6
  31  fi
  32 ])
  33
  34 define(ADNS_C_GCCATTRIB,[
  35  DPKG_CACHED_TRY_COMPILE(__attribute__((,,)),adns_cv_c_attribute_supported,,
  36   [extern int testfunction(int x) __attribute__((,,))],
  37   AC_MSG_RESULT(yes)
  38   AC_DEFINE(HAVE_GNUC25_ATTRIB)
  39    DPKG_CACHED_TRY_COMPILE(__attribute__((noreturn)),adns_cv_c_attribute_noreturn,,
  40     [extern int testfunction(int x) __attribute__((noreturn))],
  41     AC_MSG_RESULT(yes)
  42     AC_DEFINE(HAVE_GNUC25_NORETURN),
  43     AC_MSG_RESULT(no))
  44    DPKG_CACHED_TRY_COMPILE(__attribute__((const)),adns_cv_c_attribute_const,,
  45     [extern int testfunction(int x) __attribute__((const))],
  46     AC_MSG_RESULT(yes)
  47     AC_DEFINE(HAVE_GNUC25_CONST),
  48     AC_MSG_RESULT(no))
  49    DPKG_CACHED_TRY_COMPILE(__attribute__((format...)),adns_cv_attribute_format,,
  50     [extern int testfunction(char *y, ...) __attribute__((format(printf,1,2)))],
  51     AC_MSG_RESULT(yes)
  52     AC_DEFINE(HAVE_GNUC25_PRINTFFORMAT),
  53     AC_MSG_RESULT(no)),
  54   AC_MSG_RESULT(no))
  55 ])