diff options
Diffstat (limited to 'build-aux/m4')
| -rw-r--r-- | build-aux/m4/l_socket.m4 | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/build-aux/m4/l_socket.m4 b/build-aux/m4/l_socket.m4 new file mode 100644 index 0000000000..38923a98fc --- /dev/null +++ b/build-aux/m4/l_socket.m4 @@ -0,0 +1,36 @@ +# Illumos/SmartOS requires linking with -lsocket if +# using getifaddrs & freeifaddrs + +m4_define([_CHECK_SOCKET_testbody], [[ + #include <sys/types.h> + #include <ifaddrs.h> + + int main() { + struct ifaddrs *ifaddr; + getifaddrs(&ifaddr); + freeifaddrs(ifaddr); + } +]]) + +AC_DEFUN([CHECK_SOCKET], [ + + AC_LANG_PUSH(C++) + + AC_MSG_CHECKING([whether ifaddrs funcs can be used without link library]) + + AC_LINK_IFELSE([AC_LANG_SOURCE([_CHECK_SOCKET_testbody])],[ + AC_MSG_RESULT([yes]) + ],[ + AC_MSG_RESULT([no]) + LIBS="$LIBS -lsocket" + AC_MSG_CHECKING([whether getifaddrs needs -lsocket]) + AC_LINK_IFELSE([AC_LANG_SOURCE([_CHECK_SOCKET_testbody])],[ + AC_MSG_RESULT([yes]) + ],[ + AC_MSG_RESULT([no]) + AC_MSG_FAILURE([cannot figure out how to use getifaddrs]) + ]) + ]) + + AC_LANG_POP +]) |