Hi Stephan, 2012/9/16 Stephan Aßmus <superstippi@xxxxxx>: > I've just updated my tree and tried to build a simple "haiku-image" target > to test a patch. I've built with -j4 and the build failed trying to build > libtiff because of a missing jpeg header. These headers are now provided in > a package and the package was being downloaded by another build job > concurrently. If the jam dependencies were setup correctly, then generating > the libtiff object would have been postponed until the download finished, > correct? I am hoping that whoever has done this change recently (Jérôme?) > maybe has this fresh on his mind and can find a fix faster than me. I am not > so good at debugging jam files. The commit which outsourced jpeg lib also included a dependency for one source file in libtiff see http://cgit.haiku-os.org/haiku/commit/src/libs/tiff/Jamfile?id=61cb4d8c6d4b2733a53c3a3f9781bc3ee7e8c4ef If another source file is dependent, just add it next to the existing one. Bye, Jérôme