r232: * Try and fix the test for NBD_H

* Include checks for -lsocket, -lnsl, and -lresolv, to allow for
  compilation on Solaris.

diff --git a/configure.ac b/configure.ac
index 2a180dca809d93588d26fc4df139bc88d765ed08..e77007fc0e69a1920b786b93be0dc4be8a74ef5d 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -97,12 +97,15 @@ AC_TRY_COMPILE([#define u32 int
 )
 if test -f nbd.h
 then
-  if test $NBD_H='<linux/nbd.h>'
+  if test "$NBD_H" = '<linux/nbd.h>'
   then
     AC_MSG_WARN([there is a local nbd.h, but it is from the 2.4-series of kernels. Using the system-provided, working, nbd.h])
   fi
 fi
 AC_MSG_RESULT($NBD_H)
+AC_SEARCH_LIBS(bind, socket,, AC_MSG_ERROR([Could not find an implementation of the bind() system call]))
+AC_SEARCH_LIBS(inet_ntoa, nsl,, AC_MSG_ERROR([Could not find an implementation of the inet_ntoa() system call]))
+AC_SEARCH_LIBS(daemon, resolv,, AC_MSG_ERROR([Could not find an implementation of the daemon() system call]))
 AC_CHECK_HEADERS([sys/mount.h],,,
 [[#include <sys/param.h>
 ]])