Thankks grrussel.
I downloaded the OSX builds (the big zip containing several versions, right?) and put the original xcom stuff in the data folder.
I also managed to install the dev tools for xcode and then installed homebrew
and the formlas as described on
https://bitbucket.org/grrussel/openxcomosx/overviewwhen trying to run the binary it tells
dyld: Library not loaded: /usr/local/lib/libSDL_image-1.2.0.dylib
Referenced from: /Users/<user>/Desktop/<folder>/grrussel-openxcomosx-2cd2c2574d7d/openxcom_2013-05-08_21-04-00/openxcom_2013-05-08_21-04-00/bin/./openxcom
Reason: image not found
Trace/BPT trap: 5
looks like something is wrong with my SDL installation, since there is no file
/usr/local/lib/libSDL_image-1.2.0.dylib
but there are symlinks to other SDL-lib, like libSDL_gfx.dylib, libSDL_mixer.dylib and
libSDL-1.2.0.dylib
any help on this appreciated