Oh dear. I managed to find a .deb of 2.6.0 and apparently there is some stupidity with my original report:
* source files properties don't inherit, though the docs and some people's experience imply they do * my older builds were (and still are) working by pure fluke! Also for the same reason I thought I was seeing source file properties inherit when really it was the way I wrote the rules causing targets to be generating in a particular order. * CMake doesn't seem to have the ability to detect that a source which is not on the file system is created with a custom_command, which is presumably why it uses the GENERATED property. Furthermore, checking only happens if the source file does not *already* exist on disk; hence an incomplete make clean can obscure errors. * the stricter checking of add_command (which is why I thought there was a bug) is actually trying to save me from myself by failing at configure when the build *might* have failed at make time. Because of the previous point the detection is a bit fragile and reports a very odd error. So in summary: the "workaround" I posted is actually what you're supposed to do; the error message is reporting that I didn't do the "workaround"; and CMake probably can't change the source file property behavior without breaking backwards compatibility. Sorry if I wasted time and thanks for the quick handling of the initial report of this not-really-a-bug. ;) I did not write to the -close address because this behaviour might be weird enough to warrant further scrutiny, but as far as I can see the matter is resolved and, looking at the source, it certainly seems like this was intended behavior. (For reference: there is a cmLocalGenerator for each file which has its own cmMakefile. When add_* commands are encountered, the generator creates a cmTarget, which calls cmMakefile::AddOrCreateSource on each source file. This will look into the *local* generator for cmSource objects (which hold source properties). The local generator/local makefile don't check their parents for sources (though they do have references to them). Therefore the cmSource in the child directory will always be created instead of referenced, therefore it's impossible to find a given source's properties if it wasn't declared under the same local generator.) -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
