`make clean` does not remove all build files (msgidx.inc, msgtxt.inc)
- **Compiler version:** ee3ff193
If you run the commands:
```bash
git clone https://gitlab.com/freepascal.org/fpc/source.git fpcsrc
cd fpcsrc
make all install "INSTALL_PREFIX=<some-path>"
make clean
```
then after `make clean` the repository will return to the same state as after `git clone`, except for two files that will remain:
```
compiler\msgidx.inc
compiler\msgtxt.inc
```
This is a minor issue, but all build files are expected to be removed by `make clean`.
issue