install ExRootAnalysis or Delphes

Asked by taotao on 2021-01-10

Recently I tried to install ExRootAnalysis and Delphes in mac big sur (x86) with the xcode 12, and the result shows:
clang: error: invalid deployment target for -stdlib=libc++ (requires OS X 10.7 or later)
make: *** [libExRootAnalysis.dylib] Error 1
Error detected during the compilation. Please check the compilation error and run make manually.
But I do not know how to deal with it, I need someone to help me to cancel it, thanks

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I do not have (yet) a Big Sur machine so I can not test so far.
But indeed we are typically setting flag for forcing to use quite old os configuration.
(since lhapdf linking does not support new os configuration) so this might be the problem.

In a month or so, I should receive a Big Sur machine (m1) on which I should be able to test that Os/hardware.



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