Yes, version 11.4 (11E146).
I have :
MacOS 10.15.3
Xcode 11.3.1
And I do not see this problem
I believe 
But it doesn’t solve my problem
I tested the issue with different versions of cmake - 3.15 and 3.17 from homebrew - the same problem …
As you have a new version of Xcode may be you need to do:
$ xcode-select --install
?
@Axel should know better.
Of course it was done already…
Dear all,
I am experiencing a very similar problem, as already communicated in the following topic
The issue could be related.
As for aguskov, I am using the latest 11.4 (11E146) version of Xcode
Thank you for any suggestions!
Bests
Valerio
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Are you building your own binary? If so, how? Or do you see this when building ROOT itself?
From Alexey (before I reopened the topic):
No, I have this problem in compilation ROOT itself.
And I still have it with the last Xcode.
That’s really curious. Could you share your CMakeCache.txt, please?
Thanks.
Can you invoke make Core VERBOSE=1 > foraxel.txt 2>&1 and post foraxel.txt, please?
OK thanks. Can you send ~/out.txt from:
cd /Users/aguskov/Downloads/test/core/base && /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++ -I/Users/aguskov/Downloads/root-6.20.04/core/base/res -I/Users/aguskov/Downloads/root-6.20.04/core/base/../foundation/res -I/Users/aguskov/Downloads/root-6.20.04/core/base/inc -I/Users/aguskov/Downloads/test/include -I/usr/local/include -std=c++11 -Wc++11-narrowing -Wsign-compare -Wsometimes-uninitialized -Wconditional-uninitialized -Wheader-guard -Warray-bounds -Wcomment -Wtautological-compare -Wstrncat-size -Wloop-analysis -Wbool-conversion -m64 -pipe -W -Wall -Woverloaded-virtual -fsigned-char -fno-common -Qunused-arguments -pthread -stdlib=libc++ -O2 -DNDEBUG -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk -fPIC -std=c++11 -E /Users/aguskov/Downloads/root-6.20.04/core/base/src/String.cxx > ~/out.txt 2>&1
Thanks!
Is any chance to solve the problem?
Has there been any update on the topic? I still have a similar problem to aguskov and still cannot compile on my machine
Dear Valerio, I also still have the problem and I plan to reinstall the system. So, it should be a pity for developers that the source of this strange bug will remain unidentified.