Re: libobjc2 on windows

[Vincent Richomme]

>>>> On 6 Mar 2010, at 13:57, Vincent Richomme wrote:
>>>> 
>> If you really want to be pedantic, why don't you cast result from
strdup
>> into const char*(type 
>> of ivar_name)
>> 
>> ivar->ivar_name = (const char *)strdup(name);
>> 
>> 
>> Anyway it doesn't solve clang error.
> 
> Ok I found it's because __STRICT_ANSI__ seems to be defined and in mingw
> include we get
> a #ifdef defined like this :
> 
> #ifndef __STRICT_ANSI__
> ...
> _CRTIMP char* __cdecl __MINGW_NOTHROW         _strdup (const char*)
> __MINGW_ATTRIB_MALLOC;
> ...
> 
> #ifndef       _NO_OLDNAMES
> /*
>  * Non-underscored versions of non-ANSI functions. They live in
> liboldnames.a
>  * and provide a little extra portability. Also a few extra UNIX-isms
like
>  * strcasecmp.
>  */
> ...
> _CRTIMP char* __cdecl __MINGW_NOTHROW strdup (const char*)
> __MINGW_ATTRIB_MALLOC;
> ...
> #endif /* _NO_OLDNAMES */
> #endif        /* Not __STRICT_ANSI__ */
> 
> So strdup definition cannot be found.
> 
> That's the kind of things that makes me use mingw-w64 instead of mingw
but
> it might be a bit
> too early for GNUstep to switch.
> For now I have commented the #ifdef __STRICT_ANSI and I get of course
> another error :
> 
> ./sendmsg2.c:3:10: fatal error: 'dlfcn.h' file not found
> #include <dlfcn.h>
> 
> I have commented this include since you dont' use any of the dlxxx
> functions.
> 
> Then I get :
> 
> In file included from sendmsg.c:845:
> ./sendmsg2.c:5:1: error: thread-local storage is unsupported for the
> current target
> __thread id objc_msg_sender;
> 
> Hum, mingw has released a new toolchain based on gcc-4.5 with Thread
local
> storage
> but it's still in beta for now and is a bit broken.
> 
> So now option are :
> 
> 1) Wait for mingw people to fix their toolchain with TLS 
> 2) Try to understand how GNUstep is designed and compile it on a
mingw-w64
> install
> 
> Of course waiting is a lot simpler ;-) so I will keep you informed.

I am a bit tired, I am using clang and talking about gcc so of course
ignore my last email.
Now the question is : does clang support TLS on mingw and how enable it ?
I will dig that.