The isse here is that while we try to use `AC_CHECK_FUNCS`, this will generate test code
that tries to link an object and check for linking errors.  However  GNU gold at least version
(binutils-2.25-0666073 2.25.51.20141117) 1.11, considers seekdir/telldir as part of the
default libs. Thus we would actually want to pass `-nodefaultlibs` to the linker. Doing so,
would result in erros due to not finding `-ldl`.

Fixes #91