bug#14550: libltdl not found during configure of Guile 2.0.9

[Mark H Weaver]

Hi Eric,

"Eric Sheibley" <address@hidden> writes:

> Ludo,
> I figured it out but now I am getting another error when running 'make all'
> CCLD guile
> Undefined symbol              first referenced in file
> ffi_closure_alloc             ./.libs/libguile-2.0.so
> ffi_type_pointer
> ffi_prep_closure_loc
> ffi_type_uint8
> ffi_type_sint8
> ffi_type_float
> GC_unregister_my_thread
> ffi_type_uint32
> ffi_type_uint16
> ffi_type_uint64
> ffi_type_sint32
> ffi_type_sint16
> ffi_type_sint64
> ffi_type_void
> ffi_type_double
> GC_register_my_thread
> ffi_call
> ffi_closure_free
> ffi_prop_cif
> GC_pthread_create
> GC_pthread_detach
> ld:fatal:symbol reference errors. No output written to .lib/guile
> collect2: ld returned 1 exit status
>
> I get this error when using either the Solaris 10 built in gcc version 3.4.3 
> or Solaris Studio version 12.3 as the compiler.

Apparently you're not successfully linking to libffi, which should
contain those ffi_* symbols.  What FFI-related options or environment
variables did you pass to ./configure?  I'd like to see the output of
"grep -i libffi config.log".

It also appears that Guile was configured with thread support, but that
your libgc was built without thread support.  If you don't need thread
support, then I suggest passing "--without-threads" to ./configure,
otherwise you'll need to rebuild libgc (preferably version 7.2d) with
thread support.

     Regards,
       Mark