Remove the check for libdl since that isn't actually used and it causes

dnl socket lib?

AC_CHECK_FUNC(connect, , [ AC_CHECK_LIB(socket, connect) ])

dnl dl lib?

AC_CHECK_FUNC(dlclose, , [ AC_CHECK_LIB(dl, dlopen) ])

AC_MSG_CHECKING([whether to use libgcc])

AC_ARG_ENABLE(libgcc,

AC_HELP_STRING([--enable-libgcc],[use libgcc when linking]),