I m trying to install opencv face detection application on my CentOS-4 i386 (2.6.9-34.0.2.EL) OS. For it i download the application from SourceForge.net: Open Computer Vision Library: Files
then i do the necessary steps to extract the package.
But when i enter the command

[root@asterisk1 opencv-1.1.0]# make


it shows the following error

cvsmooth.cpp: In function `void histogram_add(const ushort*, ushort*)':
cvsmooth.cpp:577: error: `__m128i' was not declared in this scope
cvsmooth.cpp:577: error: expected primary-expression before ')' token
cvsmooth.cpp:578: error: expected primary-expression before ')' token
cvsmooth.cpp:578: error: `_mm_load_si128' was not declared in this scope
cvsmooth.cpp:578: error: expected primary-expression before ')' token
cvsmooth.cpp:578: error: `_mm_add_epi16' was not declared in this scope
cvsmooth.cpp:578: error: `_mm_store_si128' was not declared in this scope
cvsmooth.cpp:579: error: expected primary-expression before ')' token
cvsmooth.cpp:580: error: expected primary-expression before ')' token
cvsmooth.cpp:580: error: expected primary-expression before ')' token
cvsmooth.cpp: In function `void histogram_sub(const ushort*, ushort*)':
cvsmooth.cpp:612: error: `__m128i' was not declared in this scope
cvsmooth.cpp:612: error: expected primary-expression before ')' token
cvsmooth.cpp:613: error: expected primary-expression before ')' token
cvsmooth.cpp:613: error: `_mm_load_si128' was not declared in this scope
cvsmooth.cpp:613: error: expected primary-expression before ')' token
cvsmooth.cpp:613: error: `_mm_sub_epi16' was not declared in this scope
cvsmooth.cpp:613: error: `_mm_store_si128' was not declared in this scope
cvsmooth.cpp:614: error: expected primary-expression before ')' token
cvsmooth.cpp:615: error: expected primary-expression before ')' token
cvsmooth.cpp:615: error: expected primary-expression before ')' token
cvsmooth.cpp: In function `CvStatus icvMedianBlur_8u_CnR_O1(uchar*, int, uchar*, int, CvSize, int, int, int, int)':
cvsmooth.cpp:779: error: `_mm_empty' was not declared in this scope
cvsmooth.cpp:779: warning: unused variable '_mm_empty'
make[3]: *** [cvsmooth.lo] Error 1
make[3]: Leaving directory `/usr/src/opencv-1.1.0/cv/src'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/usr/src/opencv-1.1.0/cv'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/usr/src/opencv-1.1.0'
make: *** [all] Error 2


so can you help me as soon as possible to rectify what is the error.

urgent help is required ...
thanks in advance

Welcome to LQ.

Assume opencv-1.1.0/
For some reasons the opencv-1.1.0/cv/src/ code
doesn't like g++-3.4 . ( 4.1 works, but is only
available for EL5 )

Try the command 'g++ -v | grep g++' to know version.

'gcc4-c++-4.0.0-0.14.EL4' should be available on the
install DVD and may be it is already installed.

'rpm -qa | grep gcc' will show installed versions.
'ls /usr/bin | grep g++' : the file name ( g++-4 ? )

Then to opencv-1.1.0/ : './configure CXX=g++-4'
> > CXX : upper case letters.
.......... replace g++-4 with actual filename.
.... and run make, to see if it works.

Good luck !