Fix compilation mode in release mode.
Fix compilation mode in release mode.

manjunathnarayana/libmv,manjunathnarayana/libmv,tanmengwen/libmv,Ashwinning/libmv,jackyspeed/libmv,Danath/libmv,tanmengwen/libmv,Ashwinning/libmv,sanyaade-g2g-repos/libmv,leoujz/libmv,jackyspeed/libmv,Ashwinning/libmv,manjunathnarayana/libmv,sanyaade-g2g-repos/libmv,Shinohara-Takayuki/libmv,pombreda/libmv,sanyaade-g2g-repos/libmv,tanmengwen/libmv,tanmengwen/libmv,KangKyungSoo/libmv,Shinohara-Takayuki/libmv,sanyaade-g2g-repos/libmv,guivi01/libmv,pombreda/libmv,leoujz/libmv,leoujz/libmv,Danath/libmv,jackyspeed/libmv,Ashwinning/libmv,jackyspeed/libmv,KangKyungSoo/libmv,hjm168168/libmv,guivi01/libmv,guivi01/libmv,manjunathnarayana/libmv,pombreda/libmv,KangKyungSoo/libmv,Shinohara-Takayuki/libmv,Danath/libmv,KangKyungSoo/libmv,guivi01/libmv,hjm168168/libmv,hjm168168/libmv,Shinohara-Takayuki/libmv,Danath/libmv,pombreda/libmv,leoujz/libmv,hjm168168/libmv