Inherent problem with installing ROOT (v6-16-00) on macOS Mojave due to unicode

ROOT
1

Dear experts,

I have been trying to install ROOT on macOS by cloning the ROOT repository, checking out the v6-16-00 branch and then using CMake in accordance with the recommendations. The compilation failed around 74% due to the following message:
/opt/local/include/unicode/ucnv.h:52:10: fatal error: ‘unicode/ucnv_err.h’ file not found
#include “unicode/ucnv_err.h”

After some investigation it turns out that all files under /opt/local/include/unicode/*.h
have include commands of the form:
#include “unicode/.h”
and this causes the compilation break. The work around is that all such lines in all header files must be replaced with:
#include “/opt/local/include/unicode/.h” ?

Is this issue expected and known? This surely must affect all Mac users, right? Is there a specific flag or version recommended for Mac users?

Thank you,
Alexandros

_ROOT Version: v6-16-00
_Platform: macOS Mojave (10.14.5)
_Compiler: CMake

2

It seems whatever package installed files with #include "unicode/.h" failed somewhere to add the proper filename. This is likely a problem in Homebrew, given the paths you are showing, and the package could be libxml2, but that’s just a guess.

3

I don’t actually use homebrew. Unless I am mistaken these are the system-default files.

4

/opt/local does not exist in a fresh install of MacOS. I just logged into our test node to check. Only /opt/X11 exists, because we have XQuartz installed. It must come from some other package manager, like fink, macports, homebrew, etc. In any case, this is surely not a problem with ROOT. Cheers,

5

I have indeed used macports to install some additional packages. So that surely is the culprit then. Anyway, thank you for clarifying.