https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69650
--- Comment #39 from Roger Orr <rogero at howzatt dot demon.co.uk> --- The resolution of this issue causes a problem for me as it results in compilation errors in our build. We are compiling with distcc which AIUI distributes the pre-processed intermediate output. With revision 234480 we get no warnings logged and clean compilation. With revision 234481 we get a number of warnings logged - but this interacts unfortunately with -Werror (which we also set) and so quite a number of our compilations fail. (I cannot as yet detect a pattern with which compilations are affected, but the set is consistent on a rebuild.) I can reproduce the distcc problem by using -E to generate pre-processed source and compiling this. Note: the pre-processed intermediate output does not change between 234480 and 234481, it's the compilation of this pre-processed output that fails. Unfortunately the failing code is proprietary so I am not at liberty to upload the pre-processed output, I have attempted to produce some smaller examples but so far with no success. Could the generation of the warning be made dependent upon a more specific warning flag?
