1>Linking...
1>utils.obj : error LNK2019: unresolved external symbol _va_end referenced in function _fatal_error
1>utils.obj : error LNK2019: unresolved external symbol _va_start referenced in function _fatal_error
1>.\Release/dspFeat.exe : fatal error LNK1120: 2 unresolved externals
1>Build log was saved at "file://d:\opensource\sift-1.1.2_20101207_win\dspFeat\Release\BuildLog.htm"
1>dspFeat - 3 error(s), 3 warning(s)
添加包含头文件即可解决：
#include <stdarg.h>