[MacPorts] #21014: OpenCV 1.0.0 does not build on snow leopard

[MacPorts]

#21014: OpenCV 1.0.0 does not build on snow leopard
------------------------------------------+---------------------------------
 Reporter:  grundmann.matthias@…          |       Owner:  stante@…        
     Type:  defect                        |      Status:  new             
 Priority:  Normal                        |   Milestone:                  
Component:  ports                         |     Version:  1.8.0           
 Keywords:  LP64                          |        Port:  opencv          
------------------------------------------+---------------------------------

Comment(by njbutko@…):

 As of Sept. 30 OpenCV 2.0 is "Released." I don't know how this is
 different from the "1.2 Beta Release" from two weeks ago, but you can
 download the release here:

 [http://sourceforge.net/projects/opencvlibrary/files/
 http://sourceforge.net/projects/opencvlibrary/files/]

 This builds for me on Snow Leopard when following the instructions on the
 OpenCV website:

 From [http://opencv.willowgarage.com/wiki/Mac_OS_X_OpenCV_Port
 http://opencv.willowgarage.com/wiki/Mac_OS_X_OpenCV_Port]:

 {{{
 Building using the new CMake build system
 ===========================

 mkdir opencv/build
 cd opencv/build
 cmake ..
 ccmake .

 If you are on Snow Leopard, hit 't' to toggle advanced mode.

 Set

 CMAKE_CXX_COMPILER="/usr/bin/g++-4.0"

 and

 CMAKE_C_COMPILER="/usr/bin/gcc-4.0"

 and then continue with the following steps.

 Hit 'c' to configure. Hit 'g' to generate the config file and exit ccmake.

 make -j8
 sudo make install
 }}}

 All of my OpenCV programs seem to work as expected, including the carbon
 windowing system and the quicktime video capture.

 The caveat is that when you build programs linking to OpenCV, you must
 pass in the -arch i386 flag to g++ (build explicitly in 32-bit mode).

-- 
Ticket URL: <http://trac.macports.org/ticket/21014#comment:41>
MacPorts <http://www.macports.org/>
Ports system for Mac OS