Fix building on gcc
Fix building on gcc

amolofos/theunarchiver,3van/theunarchiver,cyranodb/theunarchiver,letup/theunarchiver,pombreda/theunarchiver,pombreda/theunarchiver-migrated,gco/theunarchiver,dsp2003/theunarchiver,dsp2003/theunarchiver,Bulat-Ziganshin/theunarchiver,dsp2003/theunarchiver,Jarvik7/theunarchiver,nagyist/theunarchiver,jsdf/theunarchiver,pombreda/theunarchiver,jsdf/theunarchiver,Bulat-Ziganshin/theunarchiver,Bulat-Ziganshin/theunarchiver,galaxy001/theunarchiver,gwerz/theunarchiver,pombreda/theunarchiver,letup/theunarchiver,Matiaz/theunarchiver,aleksejrs/theunarchiver,pombreda/theunarchiver-migrated,jianlinwei/theunarchiver,sereko/theunarchiver,markcox/theunarchiver,witwall/theunarchiver,jsdf/theunarchiver,sereko/theunarchiver,ethus3h/theunarchiver,siranwu/theunarchiver,zammitjames/theunarchiver,witwall/theunarchiver,pombreda/theunarchiver-migrated,galaxy001/theunarchiver,zammitjames/theunarchiver,jianlinwei/theunarchiver,gco/theunarchiver,gwerz/theunarchiver,gco/theunarchiver,3van/theunarchiver,letup/theunarchiver,3van/theunarchiver,Matiaz/theunarchiver,markcox/theunarchiver,amolofos/theunarchiver,nagyist/theunarchiver,gwerz/theunarchiver,cyranodb/theunarchiver,cyranodb/theunarchiver,sereko/theunarchiver,zammitjames/theunarchiver,aleksejrs/theunarchiver,venj/theunarchiver,aleksejrs/theunarchiver,amolofos/theunarchiver,jianlinwei/theunarchiver,venj/theunarchiver,ethus3h/theunarchiver,Jarvik7/theunarchiver,markcox/theunarchiver,siranwu/theunarchiver,ethus3h/theunarchiver,witwall/theunarchiver,siranwu/theunarchiver,venj/theunarchiver,nagyist/theunarchiver,Matiaz/theunarchiver,galaxy001/theunarchiver,Jarvik7/theunarchiver