Here is the Build-Log:
---------------------------- cut ----------------------------------
||=== Build: Release in DNS_Umschalter (compiler: GNU GCC Compiler) ===|
CodeBlocks_Tests\DNS_Umschalter\DNS_Umschalter\DNS_Umschalter.cpp||In function 'BOOL IsUserAdmin()':|
CodeBlocks_Tests\DNS_Umschalter\DNS_Umschalter\DNS_Umschalter.cpp|591|warning: missing braces around initializer for 'BYTE [6] {aka unsigned char [6]}' [-Wmissing-braces]|
obj\Release\DNS_Umschalter.o:DNS_Umschalter.cpp|| undefined reference to `CheckTokenMembership(void*, void*, int*)@12'|
||=== Build failed: 1 error(s), 1 warning(s) (0 minute(s), 0 second(s)) ===|
---------------------------- cut ----------------------------------
The only thing I see, is that the path seems to be relative. It begins with the project-directory.