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| author | Joe Nahmias <joe@nahmias.net> | 2012-12-07 21:44:43 -0500 |
|---|---|---|
| committer | Joe Nahmias <joe@nahmias.net> | 2012-12-07 21:44:43 -0500 |
| commit | 879e6db06338166657609930768f76d8d7e7afbb (patch) | |
| tree | 3018a2ec0a6aca4150250084bdaf4451ec4e1c3b /acinclude.m4 | |
Imported Upstream version 1.2
Diffstat (limited to 'acinclude.m4')
| -rw-r--r-- | acinclude.m4 | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/acinclude.m4 b/acinclude.m4 new file mode 100644 index 0000000..a42461f --- /dev/null +++ b/acinclude.m4 @@ -0,0 +1,73 @@ +dnl +dnl Contains the following macros +dnl BJNP_CHECK_IPV6 +dnl + +# +# Check for AF_INET6, determines whether or not to enable IPv6 support +# Check for ss_family member in struct sockaddr_storage +# Taken from sane-backends +AC_DEFUN([BJNP_CHECK_IPV6], +[ + AC_MSG_CHECKING([whether to enable IPv6]) + AC_ARG_ENABLE(ipv6, + AC_HELP_STRING([--disable-ipv6],[disable IPv6 support]), + [ if test "$enableval" = "no" ; then + AC_MSG_RESULT([no, manually disabled]) + ipv6=no + fi + ]) + + if test "$ipv6" != "no" ; then + AC_TRY_COMPILE([ + #define INET6 + #include <sys/types.h> + #include <sys/socket.h> ], [ + /* AF_INET6 available check */ + if (socket(AF_INET6, SOCK_STREAM, 0) < 0) + exit(1); + else + exit(0); + ],[ + AC_MSG_RESULT(yes) + AC_DEFINE([ENABLE_IPV6], 1, [Define to 1 if the system supports IPv6]) + ipv6=yes + ],[ + AC_MSG_RESULT([no (couldn't compile test program)]) + ipv6=no + ]) + fi + + if test "$ipv6" != "no" ; then + AC_MSG_CHECKING([whether struct sockaddr_storage has an ss_family member]) + AC_TRY_COMPILE([ + #define INET6 + #include <sys/types.h> + #include <sys/socket.h> ], [ + /* test if the ss_family member exists in struct sockaddr_storage */ + struct sockaddr_storage ss; + ss.ss_family = AF_INET; + exit (0); + ], [ + AC_MSG_RESULT(yes) + AC_DEFINE([HAS_SS_FAMILY], 1, [Define to 1 if struct sockaddr_storage has an ss_family member]) + ], [ + AC_TRY_COMPILE([ + #define INET6 + #include <sys/types.h> + #include <sys/socket.h> ], [ + /* test if the __ss_family member exists in struct sockaddr_storage */ + struct sockaddr_storage ss; + ss.__ss_family = AF_INET; + exit (0); + ], [ + AC_MSG_RESULT([no, but __ss_family exists]) + AC_DEFINE([HAS___SS_FAMILY], 1, [Define to 1 if struct sockaddr_storage has __ss_family instead of ss_family]) + ], [ + AC_MSG_RESULT([no]) + ipv6=no + ]) + ]) + fi +]) + |