CPU support error during OpenCV compilation

[winrootkit@…]

Whenever I try to compile OpenCV I get an error, no matter if I configure i386 or x86_64

---

DooMMasteRs-MacBook:~ doommaster$ sudo port -d install opencv 
//all the dep stuff 
DEBUG: Executing org.macports.main (opencv)
DEBUG: Skipping completed org.macports.fetch (opencv)
DEBUG: Skipping completed org.macports.checksum (opencv)
DEBUG: Skipping completed org.macports.extract (opencv)
DEBUG: Skipping completed org.macports.patch (opencv)
DEBUG: Skipping completed org.macports.configure (opencv)
--->  Building opencv
DEBUG: Executing org.macports.build (opencv)
DEBUG: Environment: MACOSX_DEPLOYMENT_TARGET='10.6'
DEBUG: Assembled command: 'cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_graphics_opencv/work/opencv-1.0.0" && /usr/bin/make -j2 all'
/usr/bin/make  all-recursive
Making all in cxcore
Making all in src
if /bin/sh ../../libtool --tag=CXX --mode=compile /usr/bin/g++-4.2 -DHAVE_CONFIG_H -I. -I. -I../.. -I. -I../../cxcore/include -I../..  -DNDEBUG -I/opt/local/include  -Wall -fno-rtti -pipe -O3 -g -march=prescott -ffast-math -fomit-frame-pointer -O2 -I/opt/local/include -L/opt/local/lib -arch x86_64 -MT dummy.lo -MD -MP -MF ".deps/dummy.Tpo" -c -o dummy.lo dummy.cpp; \
	then mv -f ".deps/dummy.Tpo" ".deps/dummy.Plo"; else rm -f ".deps/dummy.Tpo"; exit 1; fi
if /bin/sh ../../libtool --tag=CXX --mode=compile /usr/bin/g++-4.2 -DHAVE_CONFIG_H -I. -I. -I../.. -I. -I../../cxcore/include -I../..  -DNDEBUG -I/opt/local/include  -Wall -fno-rtti -pipe -O3 -g -march=prescott -ffast-math -fomit-frame-pointer -O2 -I/opt/local/include -L/opt/local/lib -arch x86_64 -MT cxalloc.lo -MD -MP -MF ".deps/cxalloc.Tpo" -c -o cxalloc.lo cxalloc.cpp; \
	then mv -f ".deps/cxalloc.Tpo" ".deps/cxalloc.Plo"; else rm -f ".deps/cxalloc.Tpo"; exit 1; fi
 /usr/bin/g++-4.2 -DHAVE_CONFIG_H -I. -I. -I../.. -I. -I../../cxcore/include -I../.. -DNDEBUG -I/opt/local/include -Wall -fno-rtti -pipe -O3 -g -march=prescott -ffast-math -fomit-frame-pointer -O2 -I/opt/local/include -L/opt/local/lib -arch x86_64 -MT dummy.lo -MD -MP -MF .deps/dummy.Tpo -c dummy.cpp  -fno-common -DPIC -o .libs/dummy.o
 /usr/bin/g++-4.2 -DHAVE_CONFIG_H -I. -I. -I../.. -I. -I../../cxcore/include -I../.. -DNDEBUG -I/opt/local/include -Wall -fno-rtti -pipe -O3 -g -march=prescott -ffast-math -fomit-frame-pointer -O2 -I/opt/local/include -L/opt/local/lib -arch x86_64 -MT cxalloc.lo -MD -MP -MF .deps/cxalloc.Tpo -c cxalloc.cpp  -fno-common -DPIC -o .libs/cxalloc.o
cxalloc.cpp:1: error: CPU you selected does not support x86-64 instruction set
cxalloc.cpp:1: error: CPU you selected does not support x86-64 instruction set
dummy.cpp:1: error: CPU you selected does not support x86-64 instruction set
dummy.cpp:1: error: CPU you selected does not support x86-64 instruction set
make[3]: *** [cxalloc.lo] Error 1
make[3]: *** Waiting for unfinished jobs....
make[3]: *** [dummy.lo] Error 1
make[2]: *** [all-recursive] Error 1
make[1]: *** [all-recursive] Error 1
make: *** [all] Error 2
Error: Target org.macports.build returned: shell command " cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_graphics_opencv/work/opencv-1.0.0" && /usr/bin/make -j2 all " returned error 2
DEBUG: Backtrace: shell command " cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_graphics_opencv/work/opencv-1.0.0" && /usr/bin/make -j2 all " returned error 2
    while executing
"command_exec build"
    (procedure "portbuild::build_main" line 9)
    invoked from within
"$procedure $targetname"
Warning: the following items did not execute (for opencv): org.macports.activate org.macports.build org.macports.destroot org.macports.install
Error: Status 1 encountered during processing.
To report a bug, see <http://guide.macports.org/#project.tickets>

[jmroot (Joshua Root)]

As per the ticket guidelines linked prominently from the New Ticket page, please don't set the milestone field, and remember to cc the maintainer.

[jmroot (Joshua Root)]

Duplicate of #21014, please search before filing new tickets.