R__EXTERN TDirectory *gDirectory;
On NT, R__EXTERN defines a special linkage parameter used to build the
DLL.
I suggest you look an example in $ROOTSYS/test/Event or stress to see
how
a DLL is built on NT.
Rene Brun
chris garcia wrote:
>
> hi rooters!! the last two dll's i have tried to compile have been giving
> me errors on linking, saying:
>
> error LNK2001: unresolved external symbol
> "class TDirectory * gDirectory" (?gDirectory@@3PAVTDirectory@@A)
>
> i have all the libraries in the $rootsys\lib directory included, and i get
> no other unresolvables except for gDirectory (i have extensive use of my
> own classes and TFile, TDirectory, etc.). where is gDirectory derived
> from, and am i missing that library??
>
> these are the calls to gDirectory i use:
>
> checker = gDirectory->cd(cdirname);
> :
> :
> local_current = gDirectory;
> :
> :
> gDirectory->mkdir(cdirname);
>
> they are all in different functions and don't really make any sense in the
> order i have them above. these are the only references to gDirectory in my
> code, commenting them out allows the dll to link. "checker" is of type
> Bool_t, "local_current" is of type TDirectory*, "cdirname" is of type const
> char*. any ideas?? thanks!!
> "Schrodinger had to take his cat to the vet, or did he?" - unknown
>
> chris
> chris garcia
> cdf group, the ohio state university