Holmakefile options per directory only

[xrchz]

I notice that if one has CLINE_OPTIONS in the Holmakefile set to -j1, then this is propagated to recursive Holmake calls in INCLUDES directories as well. I guess this fits the semantics of CLINE_OPTIONS: it's would happen if you'd included this option on the command line.

But how would one indicate that a particular directory should be built with -j1 but not its dependencies? (They should instead use their own Holmakefiles' CLINE_OPTIONS or the defaults.)

This issue is a feature request for that capability.

[mn200]

Hmm, I suppose a definition setting something like LOCAL_CLINE_OPTIONS might work. You only pick up CLINE_OPTIONS if you start the make in that directory, but LOCAL_CLINE_OPTIONS are always applied, but only locally.

On the other hand, what happens when Holmake builds all directories at once? What happens if something from a -j1 directory is scheduled to run at the same time as something from a -j8 directory?

[xrchz]

I think the desired semantics is if some -j<n> option is specified for a directory, then any job in that directory can only be run in a pool of n or fewer jobs. (The work required to implement this may be larger than its benefit.)