Hi make-makers,
When using GNU Make as a workflow management tool, I use the feature [Choosing
the
Shell](https://www.gnu.org/software/make/manual/make.html#index-_002eSHELLFLAGS_002c-value-of)
and give SHELL (and .SHELLFLAGS) to [Target-specific Variable
Values](https://www.gnu.org/software/
Hi.
Pattern rules are useful, but in practice, they can
change only the suffix of the target pattern.
Sometimes, I want to change the file prefix as well.
The main purpose is to prepend '.' to the file name
in order to hide less-important files.
For example, like this:
a/b.x--> a/.b.time
