| 1 |
dnl See whether we can use IPv6 related functions |
| 2 |
dnl contributed by Hajimu UMEMOTO |
| 3 |
|
| 4 |
AC_DEFUN(IPv6_CHECK_FUNC, [ |
| 5 |
AC_CHECK_FUNC($1, [dnl |
| 6 |
ac_cv_lib_socket_$1=no |
| 7 |
ac_cv_lib_inet6_$1=no |
| 8 |
], [dnl |
| 9 |
AC_CHECK_LIB(socket, $1, [dnl |
| 10 |
LIBS="$LIBS -lsocket" |
| 11 |
ac_cv_lib_inet6_$1=no |
| 12 |
], [dnl |
| 13 |
AC_MSG_CHECKING([whether your system has IPv6 directory]) |
| 14 |
AC_CACHE_VAL(ipv6_cv_dir, [dnl |
| 15 |
for ipv6_cv_dir in /usr/local/v6 /usr/inet6 no; do |
| 16 |
if test $ipv6_cv_dir = no -o -d $ipv6_cv_dir; then |
| 17 |
break |
| 18 |
fi |
| 19 |
done])dnl |
| 20 |
AC_MSG_RESULT($ipv6_cv_dir) |
| 21 |
if test $ipv6_cv_dir = no; then |
| 22 |
ac_cv_lib_inet6_$1=no |
| 23 |
else |
| 24 |
if test x$ipv6_libinet6 = x; then |
| 25 |
ipv6_libinet6=no |
| 26 |
SAVELDFLAGS="$LDFLAGS" |
| 27 |
LDFLAGS="$LDFLAGS -L$ipv6_cv_dir/lib" |
| 28 |
fi |
| 29 |
AC_CHECK_LIB(inet6, $1, [dnl |
| 30 |
if test $ipv6_libinet6 = no; then |
| 31 |
ipv6_libinet6=yes |
| 32 |
LIBS="$LIBS -linet6" |
| 33 |
fi],)dnl |
| 34 |
if test $ipv6_libinet6 = no; then |
| 35 |
LDFLAGS="$SAVELDFLAGS" |
| 36 |
fi |
| 37 |
fi])dnl |
| 38 |
])dnl |
| 39 |
if test $ac_cv_func_$1 = yes -o $ac_cv_lib_socket_$1 = yes \ |
| 40 |
-o $ac_cv_lib_inet6_$1 = yes |
| 41 |
then |
| 42 |
ipv6_cv_$1=yes |
| 43 |
ifelse([$2], , :, [$2]) |
| 44 |
else |
| 45 |
ipv6_cv_$1=no |
| 46 |
ifelse([$3], , :, [$3]) |
| 47 |
fi]) |
| 48 |
|
| 49 |
|
| 50 |
dnl See whether we have ss_family in sockaddr_storage |
| 51 |
AC_DEFUN(IPv6_CHECK_SS_FAMILY, [ |
| 52 |
AC_MSG_CHECKING([whether you have ss_family in struct sockaddr_storage]) |
| 53 |
AC_CACHE_VAL(ipv6_cv_ss_family, [dnl |
| 54 |
AC_TRY_COMPILE([#include <sys/types.h> |
| 55 |
#include <sys/socket.h>], |
| 56 |
[struct sockaddr_storage ss; int i = ss.ss_family;], |
| 57 |
[ipv6_cv_ss_family=yes], [ipv6_cv_ss_family=no])])dnl |
| 58 |
if test $ipv6_cv_ss_family = yes; then |
| 59 |
ifelse([$1], , AC_DEFINE(HAVE_SS_FAMILY), [$1]) |
| 60 |
else |
| 61 |
ifelse([$2], , :, [$2]) |
| 62 |
fi |
| 63 |
AC_MSG_RESULT($ipv6_cv_ss_family)]) |
| 64 |
|
| 65 |
|
| 66 |
dnl whether you have sa_len in struct sockaddr |
| 67 |
AC_DEFUN(IPv6_CHECK_SA_LEN, [ |
| 68 |
AC_MSG_CHECKING([whether you have sa_len in struct sockaddr]) |
| 69 |
AC_CACHE_VAL(ipv6_cv_sa_len, [dnl |
| 70 |
AC_TRY_COMPILE([#include <sys/types.h> |
| 71 |
#include <sys/socket.h>], |
| 72 |
[struct sockaddr sa; int i = sa.sa_len;], |
| 73 |
[ipv6_cv_sa_len=yes], [ipv6_cv_sa_len=no])])dnl |
| 74 |
if test $ipv6_cv_sa_len = yes; then |
| 75 |
ifelse([$1], , AC_DEFINE(HAVE_SOCKADDR_SA_LEN), [$1]) |
| 76 |
else |
| 77 |
ifelse([$2], , :, [$2]) |
| 78 |
fi |
| 79 |
AC_MSG_RESULT($ipv6_cv_sa_len)]) |
| 80 |
|
| 81 |
|
| 82 |
dnl See whether sys/socket.h has socklen_t |
| 83 |
AC_DEFUN(IPv6_CHECK_SOCKLEN_T, [ |
| 84 |
AC_MSG_CHECKING(for socklen_t) |
| 85 |
AC_CACHE_VAL(ipv6_cv_socklen_t, [dnl |
| 86 |
AC_TRY_LINK([#include <sys/types.h> |
| 87 |
#include <sys/socket.h>], |
| 88 |
[socklen_t len = 0;], |
| 89 |
[ipv6_cv_socklen_t=yes], [ipv6_cv_socklen_t=no])])dnl |
| 90 |
if test $ipv6_cv_socklen_t = yes; then |
| 91 |
ifelse([$1], , AC_DEFINE(HAVE_SOCKLEN_T), [$1]) |
| 92 |
else |
| 93 |
ifelse([$2], , :, [$2]) |
| 94 |
fi |
| 95 |
AC_MSG_RESULT($ipv6_cv_socklen_t)]) |
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