devel/fossil should not set the --with-exec-rel-paths configuration flag

[mdurian]

Setting this flag breaks diffs in project subdirectories. When set, fossil does not adjust the relative path based on the current working directory and the diff fails (diffs against a non-existent file).

See discussion with the fossil developers here: ​https://fossil-scm.org/forum/forumpost/cf0d79d469

[lifepillar (Lifepillar)]

To reproduce:

fossil init myrepo.fossil
fossil open myrepo.fossil --workdir myrepo
cd myrepo
echo "hello" >foo.txt
fossil add foo.txt
fossil commit -m "Add foo." foo.txt
echo "bonjour" >>foo.txt
mkdir bar
cd bar
fossil diff

At that point, instead of the expected diff, you should get MISSING foo.txt. This does not happen with the official Fossil binary in the same environment (in my case, macOS 12.4 on a MacBook Pro M1), so it is clearly an issue with the MacPorts build.

See also this other discussion: ​https://fossil-scm.org/forum/forumpost/5d88aa7d67

[ryandesign (Ryan Carsten Schmidt)]

A patch for this was submitted in #69920.