[Bug preprocessor/83173] C preprocessor generates incorrect linemarkers

[P at draigBrady dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83173

Pádraig Brady <P at draigBrady dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |P at draigBrady dot com

--- Comment #5 from Pádraig Brady <P at draigBrady dot com> ---
Seeing this also with GCC 7.3. Will try proposed patches