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compiling on osx

asked 2013-10-02 06:30:23 -0500

Antonio C. gravatar image

i'm experiencing some errors compiling opencv 2.4.6.1 on osx mountain lion:

/Users/stanzarossa/Downloads/opencv-2.4.6.1/modules/legacy/src/dpstereo.cpp:164:19: error: multiple unsequenced modifications to 'temp3' [-Werror,-Wunsequenced] if( ( CV_IMAX3( srcdata1[j-3], srcdata1[j-2], srcdata1[j-1] ) - ^ /Users/stanzarossa/Downloads/opencv-2.4.6.1/modules/legacy/src/dpstereo.cpp:79:33: note: expanded from macro 'CV_IMAX3'

define CV_IMAX3(a,b,c) ((temp3 = (a) >= (b) ? (a) : (b)),(temp3 >= (c) ? temp3 : (c)))

                            ^

/Users/stanzarossa/Downloads/opencv-2.4.6.1/modules/legacy/src/dpstereo.cpp:169:19: error: multiple unsequenced modifications to 'temp3' [-Werror,-Wunsequenced] if( ( CV_IMAX3( srcdata2[j+3], srcdata2[j+2], srcdata2[j+1] ) - ^ /Users/stanzarossa/Downloads/opencv-2.4.6.1/modules/legacy/src/dpstereo.cpp:79:33: note: expanded from macro 'CV_IMAX3'

define CV_IMAX3(a,b,c) ((temp3 = (a) >= (b) ? (a) : (b)),(temp3 >= (c) ? temp3 : (c)))

                            ^

/Users/stanzarossa/Downloads/opencv-2.4.6.1/modules/legacy/src/dpstereo.cpp:322:19: error: multiple unsequenced modifications to 'temp3' [-Werror,-Wunsequenced] if( ( CV_IMAX3( src1[(y-1)widthStep+x], src1[ywidthStep+x], ^ /Users/stanzarossa/Downloads/opencv-2.4.6.1/modules/legacy/src/dpstereo.cpp:79:33: note: expanded from macro 'CV_IMAX3'

define CV_IMAX3(a,b,c) ((temp3 = (a) >= (b) ? (a) : (b)),(temp3 >= (c) ? temp3 : (c)))

                            ^

3 errors generated. make[2]: * [modules/legacy/CMakeFiles/opencv_legacy.dir/src/dpstereo.cpp.o] Error 1 make[2]: Waiting for unfinished jobs.... [ 47%] Building CXX object modules/ocl/CMakeFiles/opencv_ocl.dir/kernels.cpp.o [ 47%] Building CXX object modules/contrib/CMakeFiles/opencv_contrib.dir/src/spinimages.cpp.o [ 47%] Building CXX object modules/contrib/CMakeFiles/opencv_contrib.dir/src/stereovar.cpp.o make[1]: [modules/legacy/CMakeFiles/opencv_legacy.dir/all] Error 2 [ 47%] Building CXX object modules/imgproc/CMakeFiles/opencv_test_imgproc.dir/test/test_thresh.cpp.o [ 47%] Building CXX object modules/imgproc/CMakeFiles/opencv_test_imgproc.dir/test/test_watershed.cpp.o Linking CXX shared library ../../lib/libopencv_ocl.dylib [ 47%] Built target opencv_ocl Linking CXX shared library ../../lib/libopencv_contrib.dylib [ 47%] Built target opencv_contrib Linking CXX executable ../../bin/opencv_test_imgproc [ 47%] Built target opencv_test_imgproc make: * [all] Error 2

this is the output of the cmake command, some tips?

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answered 2013-10-02 21:18:02 -0500

gbabic gravatar image

updated 2013-10-02 21:19:12 -0500

Hi Antonio,

I have just jumped into OpenCV myself and am currently working on an ios project. I had some issues that were resolved by using the gnu compiler instead of the apple default.

An easy way to compile and install openCV on mac is with homebrew: (http://brew.sh) to install it just throw this into your terminal: ruby -e "$(curl -fsSL https://raw.github.com/mxcl/homebrew/go)"

then when homebrew is installed run the next few one by one:

brew doctor

brew tap homebrew/science

brew intall opencv

brew should install all dependencies for you etc...

hope that helps you.

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i've done it but it seems that homebrew doesn't install the *.dylib files....

Antonio C. gravatar imageAntonio C. ( 2013-10-04 06:05:26 -0500 )edit

"brew intall opencv" should be "brew install opencv" with an 's' in install

DB3s gravatar imageDB3s ( 2014-04-03 20:16:46 -0500 )edit
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Asked: 2013-10-02 06:30:23 -0500

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Last updated: Oct 02 '13