o add -ldl to common/Makefile.am for now for systems where we don't

   get dlopen() for free.

 o Test for untested definitions of inet_* functions

configure.ac

@@ -67,7 +67,14 @@ dnl checks for library functions.
 dnl
 AC_FUNC_MALLOC
 AC_FUNC_STRERROR_R
-AC_CHECK_FUNCS([strerror, mtrace, strsignal])
+AC_CHECK_FUNCS( \
+   strerror  \
+   mtrace    \
+   strsignal \ 
+   inet_aton \
+   inet_ntop \
+   inet_pton \
+)
 
 AC_CHECK_DECLS([strsignal, sys_siglist])
 

src/common/Makefile.am

@@ -73,5 +73,5 @@ libeio_la_SOURCES = 	   \
 EXTRA_libcommon_la_SOURCES = \
 	qsw.c qsw.h
 
-libcommon_la_LIBADD   = $(SSL_LIBS) $(ELAN_LIBS)
+libcommon_la_LIBADD   = $(SSL_LIBS) $(ELAN_LIBS) -ldl
 libcommon_la_LDFLAGS  = $(SSL_LDFLAGS)