I work these days on a DLL with intel c compiler and extended libraries (MKL, TBB and/or IPP + FFTW). I remark that if I activate additionnal libraries without making any call to them, the binary size strongly increases even in release mode. I thought linkers did optimise this and only "stored" the useful code in the binary. Is this false ? Is there a linker-parameter to activate to purge unused functions ?