-march=x86-64-v2
-pipe
-fno-plt
-fexceptions
-fstack-clash-protection
-fcf-protection
-fno-omit-frame-pointer
-mno-omit-leaf-frame-pointer
-mpclmul
-g
-ffile-prefix-map=/startdir/src=/usr/src/debug/python-cppyy-cling
-std=c++20
-Wno-implicit-fallthrough
-pipe 
-fsigned-char
-pthread
