Re: [Tinycc-devel] TCC and external variables - am I not seeing something?

[Daniel Glöckner]

On Sun, Mar 10, 2013 at 12:31:11AM +0100, Aleksandar Kuktin wrote:
> The compiler I normally use is GCC, which has no problems about linking
> these files.

Unless you compile with -fno-common

> Header files have this:
> 
> /*extern*/ nbworks_do_align_t nbworks_do_align;

It is bad practice to have variable definitions in a header.
Add the extern to make it a declaration. Then add the definition
to a single source file in your project.

> Source files have this:
> 
> struct thread_cache *
>   daemon_internal_initializer(struct thread_cache *tcache) {
>     extern nbworks_do_align_t nbworks_do_align;

Why declare the variable inside the function if you have a header
with a definition/declaration?

  Daniel