Re: missing dependencies?

[Bruno Haible]

Hi,

John W. Eaton wrote:
> and I've received reports about the following undefined references
> when linking:
> 
>   .libs/liboctave_la-lo-cutils.o:lo-cutils.c:(.text+0x4f): undefined 
> reference to
>   address@hidden'

You requested module 'gethostname', therefore GNULIB_GETHOSTNAME should have
expanded to 1 in the generated unistd.h. Can you investigate?

>   ../libgnu/.libs/libgnu.a(error.o):error.c:(.text+0x181): undefined 
> reference to `program_name'
>   ../libgnu/.libs/libgnu.a(error.o):error.c:(.text+0x1e5): undefined 
> reference to `program_name'

See the documentation:
  
http://www.gnu.org/software/gnulib/manual/html_node/error-and-progname.html#error-and-progname
You need to request the 'program_name' module and add a call to
set_program_name at the beginning of the main() function of each
program.

>   ../libgnu/.libs/libgnu.a(fcntl.o):fcntl.c:(.text+0x53): undefined reference 
> to `getdtablesize

This looks like a bug, introduced on 2009-12-16. This is a proposed fix (which
I cannot commit right now, since something's wrong with git.savannah.gnu.org):

*** modules/fcntl.orig  Sun Feb  7 13:58:31 2010
--- modules/fcntl       Sun Feb  7 13:56:59 2010
***************
*** 8,13 ****
--- 8,14 ----
  Depends-on:
  dup2
  fcntl-h
+ getdtablesize
  extensions
  
  configure.ac:

> Is there a reasonably
> easy way to track down which modules are missing these dependencies?

Yes: The linker gave you the file names. For example, in order to know to which
module 'fcntl.c' belongs, you do

  $ grep -r '^lib/fcntl\.c$' modules
  modules/fcntl:lib/fcntl.c

Bruno