libratbox/acinclude.m4

   1 # $Id: acinclude.m4 23020 2006-09-01 18:20:19Z androsyn $ - aclocal.m4 - Autoconf fun...
   2 AC_DEFUN([AC_DEFINE_DIR], [
   3   test "x$prefix" = xNONE && prefix="$ac_default_prefix"
   4   test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
   5   ac_define_dir=`eval echo [$]$2`
   6   ac_define_dir=`eval echo [$]ac_define_dir`
   7   $1="$ac_define_dir"
   8   AC_SUBST($1)
   9   ifelse($3, ,
  10     AC_DEFINE_UNQUOTED($1, "$ac_define_dir"),
  11     AC_DEFINE_UNQUOTED($1, "$ac_define_dir", $3))
  12 ])
  13
  14 AC_DEFUN([AC_SUBST_DIR], [
  15         ifelse($2,,,$1="[$]$2")
  16         $1=`(
  17             test "x$prefix" = xNONE && prefix="$ac_default_prefix"
  18             test "x$exec_prefix" = xNONE && exec_prefix="${prefix}"
  19             eval echo \""[$]$1"\"
  20         )`
  21         AC_SUBST($1)
  22 ])
  23
  24
  25 dnl IPv6 support macros..pretty much swiped from wget
  26
  27 dnl RB_PROTO_INET6
  28
  29 AC_DEFUN([RB_PROTO_INET6],[
  30   AC_CACHE_CHECK([for INET6 protocol support], [rb_cv_proto_inet6],[
  31     AC_TRY_CPP([
  32 #include <sys/types.h>
  33 #include <sys/socket.h>
  34
  35 #ifndef PF_INET6
  36 #error Missing PF_INET6
  37 #endif
  38 #ifndef AF_INET6
  39 #error Mlssing AF_INET6
  40 #endif
  41     ],[
  42       rb_cv_proto_inet6=yes
  43     ],[
  44       rb_cv_proto_inet6=no
  45     ])
  46   ])
  47
  48   if test "X$rb_cv_proto_inet6" = "Xyes"; then :
  49     $1
  50   else :
  51     $2
  52   fi
  53 ])
  54
  55
  56 AC_DEFUN([RB_TYPE_STRUCT_SOCKADDR_IN6],[
  57   rb_have_sockaddr_in6=
  58   AC_CHECK_TYPES([struct sockaddr_in6],[
  59     rb_have_sockaddr_in6=yes
  60   ],[
  61     rb_have_sockaddr_in6=no
  62   ],[
  63 #include <sys/types.h>
  64 #include <sys/socket.h>
  65 #include <netinet/in.h>
  66   ])
  67
  68   if test "X$rb_have_sockaddr_in6" = "Xyes"; then :
  69     $1
  70   else :
  71     $2
  72   fi
  73 ])
  74
  75
  76 AC_DEFUN([RB_CHECK_TIMER_CREATE],
  77   [AC_CACHE_CHECK([for a working timer_create(CLOCK_REALTIME)],
  78     [rb__cv_timer_create_works],
  79     [AC_TRY_RUN([
  80 #ifdef HAVE_TIME_H
  81 #include <time.h>
  82 #endif
  83 #ifdef HAVE_SIGNAL_H
  84 #include <signal.h>
  85 #endif
  86 #ifdef HAVE_UNISTD_H
  87 #include <unistd.h>
  88 #endif
  89 int main(int argc, char *argv[])
  90 {
  91 #if HAVE_TIMER_CREATE
  92     struct sigevent ev;
  93     timer_t timer;
  94     ev.sigev_notify = SIGEV_SIGNAL;
  95     ev.sigev_signo  = SIGVTALRM;
  96     if (timer_create(CLOCK_REALTIME, &ev, &timer) != 0) {
  97        return 1;
  98     }
  99 #else
 100     return 1;
 101 #endif
 102     return 0;
 103 }
 104      ],
 105      [rb__cv_timer_create_works=yes],
 106      [rb__cv_timer_create_works=no])
 107   ])
 108 case $rb__cv_timer_create_works in
 109     yes) AC_DEFINE([USE_TIMER_CREATE], 1,
 110                    [Define to 1 if we can use timer_create(CLOCK_REALTIME,...)]);;
 111 esac
 112 ])
 113