librb/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   last_ac_define_dir=`eval echo [$]$2`
   6   ac_define_dir=`eval echo [$]last_ac_define_dir`
   7   ac_define_dir_counter=0
   8   while test "x[$]last_ac_define_dir" != "x[$]ac_define_dir"; do
   9     last_ac_define_dir="[$]ac_define_dir"
  10     ac_define_dir=`eval echo [$]last_ac_define_dir`
  11     AS_VAR_ARITH([ac_define_dir_counter], [$ac_define_dir_counter + 1])
  12     AS_VAR_IF([ac_define_dir_counter], [128],
  13         [AC_MSG_ERROR([detected recusive directory expansion when expanding $1=[$]$2: [$]ac_define_dir])
  14         break])
  15   done
  16   $1="$ac_define_dir"
  17   AC_SUBST($1)
  18   ifelse($3, ,
  19     AC_DEFINE_UNQUOTED($1, "$ac_define_dir"),
  20     AC_DEFINE_UNQUOTED($1, "$ac_define_dir", $3))
  21 ])
  22
  23 AC_DEFUN([AC_SUBST_DIR], [
  24         ifelse($2,,,$1="[$]$2")
  25         $1=`(
  26             test "x$prefix" = xNONE && prefix="$ac_default_prefix"
  27             test "x$exec_prefix" = xNONE && exec_prefix="${prefix}"
  28             eval echo \""[$]$1"\"
  29         )`
  30         AC_SUBST($1)
  31 ])
  32
  33
  34 dnl IPv6 support macros..pretty much swiped from wget
  35
  36 dnl RB_PROTO_INET6
  37
  38 AC_DEFUN([RB_PROTO_INET6],[
  39   AC_CACHE_CHECK([for INET6 protocol support], [rb_cv_proto_inet6],[
  40     AC_TRY_CPP([
  41 #ifndef _WIN32
  42 #include <sys/types.h>
  43 #include <sys/socket.h>
  44 #else
  45 #include <winsock2.h>
  46 #include <ws2tcpip.h>
  47 #endif
  48
  49 #ifndef PF_INET6
  50 #error Missing PF_INET6
  51 #endif
  52 #ifndef AF_INET6
  53 #error Mlssing AF_INET6
  54 #endif
  55     ],[
  56       rb_cv_proto_inet6=yes
  57     ],[
  58       rb_cv_proto_inet6=no
  59     ])
  60   ])
  61
  62   if test "X$rb_cv_proto_inet6" = "Xyes"; then :
  63     $1
  64   else :
  65     $2
  66   fi
  67 ])
  68
  69
  70 AC_DEFUN([RB_TYPE_STRUCT_SOCKADDR_IN6],[
  71   rb_have_sockaddr_in6=
  72   AC_CHECK_TYPES([struct sockaddr_in6],[
  73     rb_have_sockaddr_in6=yes
  74   ],[
  75     rb_have_sockaddr_in6=no
  76   ],[
  77 #ifndef _WIN32
  78 #include <sys/types.h>
  79 #include <sys/socket.h>
  80 #include <netinet/in.h>
  81 #else
  82 #include <winsock2.h>
  83 #include <ws2tcpip.h>
  84 #endif
  85   ])
  86
  87   if test "X$rb_have_sockaddr_in6" = "Xyes"; then :
  88     $1
  89   else :
  90     $2
  91   fi
  92 ])
  93
  94
  95 AC_DEFUN([RB_CHECK_TIMER_CREATE],
  96   [AC_CACHE_CHECK([for a working timer_create(CLOCK_REALTIME)],
  97     [rb__cv_timer_create_works],
  98     [AC_TRY_RUN([
  99 #ifdef HAVE_TIME_H
 100 #include <time.h>
 101 #endif
 102 #ifdef HAVE_SIGNAL_H
 103 #include <signal.h>
 104 #endif
 105 #ifdef HAVE_UNISTD_H
 106 #include <unistd.h>
 107 #endif
 108 int main(int argc, char *argv[])
 109 {
 110 #if HAVE_TIMER_CREATE
 111     struct sigevent ev;
 112     timer_t timer;
 113     ev.sigev_notify = SIGEV_SIGNAL;
 114     ev.sigev_signo  = SIGVTALRM;
 115     if (timer_create(CLOCK_REALTIME, &ev, &timer) != 0) {
 116        return 1;
 117     }
 118 #else
 119     return 1;
 120 #endif
 121     return 0;
 122 }
 123      ],
 124      [rb__cv_timer_create_works=yes],
 125      [rb__cv_timer_create_works=no],
 126      [rb__cv_timer_create_works=no])
 127   ])
 128 case $rb__cv_timer_create_works in
 129     yes) AC_DEFINE([USE_TIMER_CREATE], 1,
 130                    [Define to 1 if we can use timer_create(CLOCK_REALTIME,...)]);;
 131 esac
 132 ])
 133
 134
 135
 136 AC_DEFUN([RB_CHECK_TIMERFD_CREATE],
 137   [AC_CACHE_CHECK([for a working timerfd_create(CLOCK_REALTIME)],
 138     [rb__cv_timerfd_create_works],
 139     [AC_TRY_RUN([
 140 #ifdef HAVE_TIME_H
 141 #include <time.h>
 142 #endif
 143 #ifdef HAVE_SIGNAL_H
 144 #include <signal.h>
 145 #endif
 146 #ifdef HAVE_UNISTD_H
 147 #include <unistd.h>
 148 #endif
 149 #ifdef HAVE_SYS_TIMERFD_H
 150 #include <sys/timerfd.h>
 151 #endif
 152 int main(int argc, char *argv[])
 153 {
 154 #if defined(HAVE_TIMERFD_CREATE) && defined(HAVE_SYS_TIMERFD_H)
 155     if (timerfd_create(CLOCK_REALTIME, 0) < 0) {
 156        return 1;
 157     }
 158 #else
 159     return 1;
 160 #endif
 161     return 0;
 162 }
 163      ],
 164      [rb__cv_timerfd_create_works=yes],
 165      [rb__cv_timerfd_create_works=no],
 166      [rb__cv_timerfd_create_works=no])
 167   ])
 168 case $rb__cv_timerfd_create_works in
 169     yes) AC_DEFINE([USE_TIMERFD_CREATE], 1,
 170                    [Define to 1 if we can use timerfd_create(CLOCK_REALTIME,...)]);;
 171 esac
 172 ])
 173