ROOT v6.36.00 won't compile on MacBookPro

Newbie
1

_ROOT Version: 6.36.00
_Platform: MacOS Sequoia 15.5 on Intel MacBook Pro 16-inch 2019
_Compiler: Apple Clang 17.0.0 and cmake 4.0.3

I made sure that I had XCode tools, cmake, and also the python dependencies installed.

cmake worked just fine, but when I compile with make, I keep getting the same error to do with zstd.h not being found.

Screenshot 2025-06-20 at 15.38.13
Screenshot 2025-06-20 at 15.38.131466×538 207 KB

The strange thing for me is that I just installed root_v6.36.00 on my iMac desktop and had no issues. That said, the iMac is much newer and so is not identical to the older MacBook.

Any help would be much appreciated. Thanks.

2

Hi,

Thanks for the post and sorry to see this issue.
Have you tried to install zlib on your system via brew or via ROOT with the builtin_zlib configuration option?

Best,
D

3

Hi Danillo,

Unfortunately that didn’t work. I installed zlib with brew and then also set some compiler flags on brew’s suggestion:

export LDFLAGS=“-L/usr/local/opt/zlib/lib”
export CPPFLAGS=“-I/usr/local/opt/zlib/include”

But it still crapped out at the same place, compiling Compression.cpp. :frowning:

Thanks very much for the suggestion, though.

Dave