1 # aclocal.m4 - package-specific macros for autoconf
3 # This file is part of adns, which is Copyright Ian Jackson
4 # and contributors (see the file INSTALL for full details).
6 # This program is free software; you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation; either version 3, or (at your option)
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program; if not, write to the Free Software Foundation.
19 dnl DPKG_CACHED_TRY_COMPILE(<description>,<cachevar>,<include>,<program>,<ifyes>,<ifno>)
20 define(DPKG_CACHED_TRY_COMPILE,[
23 AC_TRY_COMPILE([$3],[$4],[$2=yes],[$2=no])
25 if test "x$$2" = xyes; then
34 define(ADNS_C_GCCATTRIB,[
35 DPKG_CACHED_TRY_COMPILE(__attribute__((,,)),adns_cv_c_attribute_supported,,
36 [extern int testfunction(int x) __attribute__((,,))],
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))],
42 AC_DEFINE(HAVE_GNUC25_NORETURN),
44 DPKG_CACHED_TRY_COMPILE(__attribute__((const)),adns_cv_c_attribute_const,,
45 [extern int testfunction(int x) __attribute__((const))],
47 AC_DEFINE(HAVE_GNUC25_CONST),
49 DPKG_CACHED_TRY_COMPILE(__attribute__((format...)),adns_cv_attribute_format,,
50 [extern int testfunction(char *y, ...) __attribute__((format(printf,1,2)))],
52 AC_DEFINE(HAVE_GNUC25_PRINTFFORMAT),
57 define(ADNS_C_GETFUNC,[
59 AC_CHECK_LIB([$2],[$1],[$3],[
60 AC_MSG_ERROR([cannot find library function $1])