attached is a list of about 161 warnings (-Wall -Wextra) the latest
gcc/g++ (from svn repo) generates when building the latest llvm & clang
& libs (from svn repo) with it.
$ g++-latest --version
g++-latest (GCC) 9.0.0 20180618 (experimental) [trunk revision 261695]
$ clang++ --version
clang version 7.0.0 (trunk 334978)
Thread model: posix
In the attached txt-file (40K, tar.gz-packed 5K), completely dupe lines have been filtered out.
There are still some dupe warnings in the list, but differing in context
depending on the different locations it was called from (ie. the warning texts differ).