What is the correct extension to track .h file changes?

[matu3ba]

For example, watchexec -e c,cpp 'make -$(nproc)' does not work.

1. I would expect to c and cpp both track header changes, but probably they are inside another category?
2. Where is the list of file endings, for which all options in -e are resolved to? Maybe I did not check good enough, but I could not find it in the help page.

[passcod]

-e just tracks whatever extensions you give it, it doesn't resolve to file types. So you'd give -e c,cpp,h or as needed.

[matu3ba]

Thanks alot!