| dnl @synopsis LIB_SOCKET_NSL |
| dnl |
| dnl This macro figures out what libraries are required on this platform |
| dnl to link sockets programs. |
| dnl |
| dnl The common cases are not to need any extra libraries, or to need |
| dnl -lsocket and -lnsl. We need to avoid linking with libnsl unless we |
| dnl need it, though, since on some OSes where it isn't necessary it |
| dnl will totally break networking. Unisys also includes gethostbyname() |
| dnl in libsocket but needs libnsl for socket(). |
| dnl |
| dnl @category Misc |
| dnl @author Russ Allbery <rra@stanford.edu> |
| dnl @author Stepan Kasal <kasal@ucw.cz> |
| dnl @author Warren Young <warren@etr-usa.com> |
| dnl @version 2005-09-06 |
| dnl @license AllPermissive |
| |
| AC_DEFUN([LIB_SOCKET_NSL], |
| [ |
| AC_SEARCH_LIBS([gethostbyname], [nsl]) |
| AC_SEARCH_LIBS([socket], [socket], [], [ |
| AC_CHECK_LIB([socket], [socket], [LIBS="-lsocket -lnsl $LIBS"], |
| [], [-lnsl])]) |
| ]) |
