Re: [xml] MSYS and MINGW: undefined reference to _imp__xmlFree

[Igor Zlatkovic <igor zlatkovic com>]

On 08/11/09 19:08, Roumen Petrov wrote:
> I've cross-build libxml, libxslt , xmlsec with code from repository but
> xmlsec application crash. My investigation show that application crash
> when code call xmlMalloc. Also I found that xsltproc crash too.
>
>
> Now with reverted commit
> http://git.gnome.org/cgit/libxml2/commit/?id=a194ccb8d19ddde94c2c04ddf197e6a629f7cc9b
> , i.e. restored "...defined(IN_LIBXML)..." plus following patch

Sure, clear as sky. When no clouds are lingering. Sorry, when that
commit was discussed, Daniel did alert me and I have seen the patch and
in my then obviously thorough blindness I have missed the significance.
That can never work because it breaks the import/export of variables.
xmlMalloc is a variable (a pointer to a function).

> ==========================================
> diff --git a/libxml.h b/libxml.h
> index 3c44c83..1656ac2 100644
> --- a/libxml.h
> +++ b/libxml.h
> @@ -90,4 +90,7 @@ void __xmlGlobalInitMutexDestroy(void);
>  #endif
>  #endif
>  #endif
> +#ifndef PIC
> +#  define LIBXML_STATIC
> +#endif
>  #endif /* ! __XML_LIBXML_H__ */
> ==========================================
>
> xsltproc work again.

That should be okay. PIC will have no meaning for MSVC and the user will
still have to define LIBXML_STATIC herself, but that is how it was before.

Ciao,
Igor