linker - C++ Builder XE unresolved external error -

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i have following header file containing class , variables

extern bool akwizycja_w_toku; extern lpctstr pfilename; extern int numer_akwizycji;  class akwizycja : public tthread { public:     __fastcall akwizycja(bool createsuspended);     void __fastcall akwizycja::updatelabels();     akwizycja::akwizycja() {} };

(just sample, there more doesn't matter) furthermore i've got main project

#include "akwizycja.h" void __fastcall akwizycja::updatelabels() {     form1->label12->caption=floattostrf(drate,fffixed,8,4);     form1->label13->caption=floattostrf(actualrate,fffixed,8,3);     form1->label14->caption=floattostrf(effectiverate,fffixed,8,3);     form1->label15->caption=pow(2,clock_divider); }

where arguments drate or fffixed of extern variables. problem starts when want use of functions

void __fastcall tform1::button3click(tobject *sender) {     akwizycja* new_object = new akwizycja; }

i [ilink32 error] error: unresolved external '_drate' referenced d:\df\debug\win32\receiver.obj of variables used.

suppose it's path-setting issue, of them added. many piece of advice.


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