Mac OSX - Homebrew & Macports CMakeLists.txt ERROR about inspectrum HOT 2 OPEN

It looks like you not in the right directory. Looking at your error cmake searches in /Users/1 the file CMakeLists.txt.
Let's assume you have cloned the source code to the dir /Users/1/inspectrum, so like described in the wiki you should create the folder /Users/1/inspectrum/build with the command mkdir build executed in /Users/1/inspectrum.
Then change your current folder to the newly created one with cd build.
Now cmake .. should run perfectly and also the rest of the compling-process should work fine.
Hope i could help :)

Note: hope you know, that you only need homebrew OR macports, not both ;)

from inspectrum.

you can use brew install inspectrum

from inspectrum.