Question: Trying to compile opencv on my Mac from source. 

I have following CMakeCache.txt:
<http://pastebin.com/KqPHjBx0>

I make `ccmake ..`, press `c`, then `g`.
Than I make `sudo make -j8`:
<http://pastebin.com/cJyr1cEd>

Than I make `sudo make install`:
<http://pastebin.com/W77syYBj>

And than I make `import cv` in python and get "Segmentation faul" with this stacktrace:
<http://pastebin.com/gegYAK1u>

I don't know what could be useful to help me, pls. ask, I'll get it.

Answer: 
I had a same situation and resolved the following steps.

In ccmake(`ccmake -G "Unix Makefiles" .`), toggle to the advanced mode pressing `t`.

change `PYTHON_LIBRARY` value to `/opt/local/lib/libpython2.6.dylib` and `PYTHON_INCLUDE_DIR` to `/opt/local/Library/Frameworks/Python.framework/Versions/2.6/include/python2.6`.

Note that the specific path depends, of course, what version of Python you are using (2.6 or 2.7 etc.). Also, if you are using the system Python, instead of MacPorts (which is in /opt), then you probably want **PYTHON\_LIBRARY** to be **/usr/lib/libpython2.6.dylib**
The problem is simple, macports did rewrote cv.so in ~/usr/lib

if you installed OPENCV using 

```
sudo port install  opencv +python26

```

type

```
sudo port select --set python python26

```

if you installed OPENCV using

```
sudo port install  opencv +python27

```

type

```
sudo port select --set python python27

```

The "bug" is that python2.7 interpreter is trying to open python2.6 pre-compiled binary that gives seg fault 11 (or vice versa)

The nevereinding problem with opencv is that it does not have source code, just binaries that are stongly dependent on which compiler there were built on (which platform etc.)