patches dxr to work with LLVM 7 #1
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fwyzard
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Apr 4, 2019
Pyquen reintegration as external
fwyzard
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Jul 25, 2021
To avoid build error like [a]. We need to see why ASAN complains aboit this later.
```
==13090==ERROR: AddressSanitizer: odr-violation (0x2b5fe7583ac0):
[1] size=8 'fInstance' /data/cmsbld/jenkins/workspace/build-any-ib/w/tmp/BUILDROOT/1dfeac7d6610a27569daad7177d12f4e/opt/cmssw/slc7_amd64_gcc10/cms/cmssw/CMSSW_12_0_ASAN_X_2021-06-25-2300/src/GeneratorInterface/Core/interface/FortranCallback.h:46:20
[2] size=8 'fInstance' /data/cmsbld/jenkins/workspace/build-any-ib/w/tmp/BUILDROOT/1dfeac7d6610a27569daad7177d12f4e/opt/cmssw/slc7_amd64_gcc10/cms/cmssw/CMSSW_12_0_ASAN_X_2021-06-25-2300/src/GeneratorInterface/Core/interface/FortranCallback.h:46:20
These globals were registered at these points:
[1]:
#0 0x2b5f3ab95f70 in __asan_register_globals ../../../../libsanitizer/asan/asan_globals.cpp:341
#1 0x2b5f3a94a9c2 in _dl_init_internal (/lib64/ld-linux-x86-64.so.2+0xf9c2)
#2 0x7ffd95da3fbe (<unknown module>)
[2]:
#0 0x2b5f3ab95f70 in __asan_register_globals ../../../../libsanitizer/asan/asan_globals.cpp:341
#1 0x2b5f3a94a9c2 in _dl_init_internal (/lib64/ld-linux-x86-64.so.2+0xf9c2)
#2 0x7ffd95da3fbe (<unknown module>)
==13090==HINT: if you don't care about these errors you may set ASAN_OPTIONS=detect_odr_violation=0
```
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@fwyzard , this should allow DXR to build with LLVM 7.0