macOS failures / false positives

[roccoblues]

Full list of errors I currently get. Created with:

find . \( -name .git -o -name queue.h -o -path './test/*' -o -path './autosetup/*' -o -path './docs/*' \) -prune -o -type f -name '*.[ch]' -print | sed 's/^\.\///' | sort | xargs ../iwyu/bin/iwyu.sh

Some of those are definitely related to my setup. For example I don't build with rocksdb or notmuch:

grep -ri fatal /tmp/iwyu.txt | perl -pe 's/.*: fatal/fatal/' | sort | uniq
/tmp/iwyu.txt:fatal error: too many errors emitted, stopping now [-ferror-limit=]
fatal error: 'depot.h' file not found
fatal error: 'gdbm.h' file not found
fatal error: 'gnutls/gnutls.h' file not found
fatal error: 'gpg-error.h' file not found
fatal error: 'gpgme.h' file not found
fatal error: 'gsasl.h' file not found
fatal error: 'idn2.h' file not found
fatal error: 'kclangc.h' file not found
fatal error: 'lauxlib.h' file not found
fatal error: 'libintl.h' file not found
fatal error: 'lmdb.h' file not found
fatal error: 'lz4.h' file not found
fatal error: 'notmuch.h' file not found
fatal error: 'openssl/asn1.h' file not found
fatal error: 'rocksdb/c.h' file not found
fatal error: 'sys/inotify.h' file not found
fatal error: 'tcbdb.h' file not found
fatal error: 'tdb.h' file not found
fatal error: 'zstd.h' file not found

Tooling

❯ $CC --version
Homebrew clang version 16.0.6
Target: arm64-apple-darwin22.6.0
Thread model: posix
InstalledDir: /opt/homebrew/Cellar/llvm/16.0.6/bin

❯ $IWYU --version
include-what-you-use 0.20 based on Homebrew clang version 16.0.6

iwyu.txt

[flatcap]

That actually doesn't look too bad.
Excluding the not-installed stuff, there look to be a few more sys/ fixes.

How does it look if you just check the files that you actually build?
(assuming you don't want to install every possible feature)

[roccoblues]

#6 and https://github.com/neomutt/neomutt/tree/devel/iwyu improved this a lot:

iwyu.txt