Re: [Bug-gnulib] Symbol collision

[Bruno Haible]

Simon Josefsson wrote:
> I do have access to a cygwin system, does that count as Woe32?

In this case (regarding the behaviour of linker and dynamic linker), yes.

> Such as, from gnulib/lib/error.c:
>
> /* The calling program should define program_name and set it to the
>    name of the executing program.  */
> extern char *program_name;

This is not a problem, it's a variable _declaration_, not _definition_.

> This also make it problematic to use error.c in a library (or anything
> that uses error.c, such as xalloc, alloca, etc, or anything that uses
> xalloc, alloca, etc, and so on).  I.e.: should my library define
> program_name?

No, it's the main program (or at most 1 library) which should define
the variable 'program_name'. The problems with error.c are
error_print_progname, error_message_count, error_one_per_line, ...

Bruno