Patch to build with GCC 4.7
Patch to build with GCC 4.7

Built and tested downstream in RPMFusion. This addresses some changes
in how GCC 4.7 no longer uses unistd by default to keep the global
namespace sane.

anba8005/mlt,gmarco/mlt-orig,wideioltd/mlt,xzhavilla/mlt,j-b-m/mlt,anba8005/mlt,xzhavilla/mlt,zzhhui/mlt,mltframework/mlt,zzhhui/mlt,zzhhui/mlt,mltframework/mlt,zzhhui/mlt,gmarco/mlt-orig,mltframework/mlt,siddharudh/mlt,wideioltd/mlt,mltframework/mlt,anba8005/mlt,siddharudh/mlt,gmarco/mlt-orig,wideioltd/mlt,siddharudh/mlt,gmarco/mlt-orig,wideioltd/mlt,mltframework/mlt,wideioltd/mlt,zzhhui/mlt,zzhhui/mlt,wideioltd/mlt,mltframework/mlt,xzhavilla/mlt,j-b-m/mlt,wideioltd/mlt,mltframework/mlt,zzhhui/mlt,xzhavilla/mlt,xzhavilla/mlt,zzhhui/mlt,xzhavilla/mlt,siddharudh/mlt,anba8005/mlt,mltframework/mlt,j-b-m/mlt,wideioltd/mlt,j-b-m/mlt,xzhavilla/mlt,anba8005/mlt,anba8005/mlt,anba8005/mlt,j-b-m/mlt,mltframework/mlt,j-b-m/mlt,xzhavilla/mlt,siddharudh/mlt,gmarco/mlt-orig,zzhhui/mlt,anba8005/mlt,siddharudh/mlt,mltframework/mlt,gmarco/mlt-orig,siddharudh/mlt,j-b-m/mlt,gmarco/mlt-orig,siddharudh/mlt,gmarco/mlt-orig,wideioltd/mlt,siddharudh/mlt,j-b-m/mlt,anba8005/mlt,j-b-m/mlt,gmarco/mlt-orig,xzhavilla/mlt,j-b-m/mlt