On Sat, May 2, 2015 at 6:12 AM, Linus Torvalds <torva...@linux-foundation.org> wrote: > On Fri, May 1, 2015 at 2:41 PM, Abelardo Ricart III <aric...@memnix.com> > wrote: >> >> Here's my two-line patch strictly defining the build order, for your perusal. > > Ok, so this looks possible and sounds like it could explain the issues. > > But I'd like somebody who is much more familiar with these kinds of > subtleties in 'make' to take anothe rlook and ack it. Because I had > personally never even heard (much less used) about these magical GNU > make "order-only prerequisites". Live and learn. > >> -signing_key.priv signing_key.x509: x509.genkey >> +signing_key.priv signing_key.x509: | x509.genkey >> + $(warning *** X.509 module signing key pair not found in root of >> source tree ***) > > So we shouldn't warn about this. The "generate random key" should be > the normal action for just about everybody but actual preduction > vendor builds. It's definitely not an error condition. > > But that ": |" syntax is interesting. I quick grep does show that we > do have a few previous uses, so I guess we really *do* use just about > every possible feature of GNU make even if I wasn't aware of this > one.. > > The "generate random key" does seem to be a similar "prep" phase as > the __dtbs_install_prep thing we do in the dtb install. > > Adding Michal Marek to the cc, since I want an Ack from somebody who > knows the details of GNU make more than I do. Anybody else who is a > makefile God? >
/me no GNU/make or Makefile guru. When dealing with .PHONY targets [2] within the Freetz router project I bookmarked the below links. So there exists ".NOTPARALLEL" [1]. Maybe its use can be a "hacky" possibility to workaround the issue (cannot tell you about version-prereqs of GNU/make). My 0,02cents. - Sedat - [1] https://www.gnu.org/software/make/manual/html_node/Special-Targets.html [2] https://www.gnu.org/software/make/manual/html_node/Phony-Targets.html -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/