• CompileOpenCVUsingMacOSX

How To Compile OpenCV based programs on Mac OS/X

• NOTE: This page contains older info. For more updated info, read how to install on Mac OS X. But if you want to compile OpenCV using Shell scripts, read below.

How to compile C on OS/X ?

• As on Linux, you need to setup the PKG_CONFIG_PATH variable. For example (assuming you are using a sh-based shell, like bash or zsh):

For Bash:

• export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig
  export LD_LIBRARY_PATH=/usr

For csh:

• setenv PKG_CONFIG_PATH /usr/local/lib/pkgconfig
  setenv LD_LIBRARY_PATH /usr

  You can check that the PKG_CONFIG_PATH is correct by doing either:

  pkg-config --cflags opencv
  pkg-config --libs opencv

How to compile and link the sample code on OS/X ?

You can compile and run the sample code from the directory it's installed in (usually /usr/local/share/opencv/samples/c):

g++ -bind_at_load `pkg-config --cflags opencv` morphology.c -o morphology `pkg-config --libs opencv`
./morphology

Using gcc in OS X

I am using OS X 10.5.7. The gcc command I use successfully is:

gcc -o foo foo.c -I/usr/local/include/opencv -L/usr/local/lib -lcxcore -lcv -lml -lhighgui -lcvaux

You probably don't need all of the "-lcxcore -lcv -lml -lhighgui -lcvaux" in the command line. Just the libs that you need to link.