unix/Makefile: fix build with accounting
unix/Makefile: fix build with accounting

KyleSiefring/daala,nvoron23/daala,ycho/daala,jmvalin/daala,KyleSiefring/daala,nvoron23/daala,xiph/daala,kodabb/daala,luctrudeau/daala,xiph/daala,tribouille/daala,jmvalin/daala,kodabb/daala,kodabb/daala,HeadhunterXamd/daala,nvoron23/daala,xiphmont/daala,jmvalin/daala,luctrudeau/daala,ycho/daala,luctrudeau/daala,felipebetancur/daala,xiphmont/daala,tribouille/daala,nvoron23/daala,felipebetancur/daala,HeadhunterXamd/daala,felipebetancur/daala,KyleSiefring/daala,tribouille/daala,ycho/daala,xiphmont/daala,tribouille/daala,xiphmont/daala,kodabb/daala,xiph/daala,KyleSiefring/daala,felipebetancur/daala,luctrudeau/daala,xiph/daala,HeadhunterXamd/daala,nvoron23/daala,xiphmont/daala,ycho/daala,kodabb/daala,tribouille/daala,luctrudeau/daala,HeadhunterXamd/daala,jmvalin/daala,ycho/daala,xiph/daala,jmvalin/daala,HeadhunterXamd/daala,felipebetancur/daala,KyleSiefring/daala