166564 2007-02-12 20:36 0000 Portage: Circular dependencies output is difficult to decipher 2007-02-28 18:06:45 0000 1 1 1 Unclassified Portage Development Core - Dependencies unspecified x86 Linux RESOLVED FIXED P2 major --- 167107 1 radu124@gmail.com dev-portage@gentoo.org dblmok115@gmail.com radu124@gmail.com 2007-02-12 20:36:08 0000 Trying to emerge either gnome or kde results in an "circular dependencies" error zmedico@gentoo.org 2007-02-12 20:46:47 0000 Created an attachment (id=109992) reduce the noise level in the circular dependency debug output This patch will filter the noise so that it's easier to see the cycles. If it's saved as /tmp/circular_deps.patch, then it can be applied as follows: patch /usr/lib/portage/bin/emerge < /tmp/circular_deps.patch Generally, you can break dependency cycles by disabling use flags. For example, to break a circular dependency between media-libs/libsdl-1.2.11 and dev-libs/DirectFB-0.9.25.1, you can temporarily disable the either of the directfb or sdl USE flags for one of those packages via package.use. After both of them have been built, change the USE flags back to the original setting and rebuild the package that had a flag temporarily disabled. radu124@gmail.com 2007-02-13 09:57:05 0000 (In reply to comment #1) > reduce the noise level in the circular dependency debug output I have solved the problem in the mean time, but I appreciate your feedback. Indeed, the amount of output gave me a hard time finding the cycle. It was a strange combination of alsa/jdk/doxygen. I'm still a beginner with gentoo, so it will take a while to get used to these things. There must be a better way to solve this though, maybe automatically discover conditional dependencies and performing the steps you just mentioned automatically. From the algorithmic point of view it should not be difficult, at least for the common case that you described, but I have no idea what it would take to implement it. zmedico@gentoo.org 2007-02-13 18:23:05 0000 (In reply to comment #2) > There must be a better way to solve this though, maybe automatically discover > conditional dependencies and performing the steps you just mentioned > automatically. From the algorithmic point of view it should not be difficult, > at least for the common case that you described, but I have no idea what it > would take to implement it. I'm planning to rewrite the dependency resolver soon and that feature is certainly planned. zmedico@gentoo.org 2007-02-19 21:48:02 0000 In addition to the reduced noise debug output, the nodes that are part of cycles are also displayed like a merge list with --tree mode enabled (including the USE flag settings). This has been released in 2.1.2-r10. zmedico@gentoo.org 2007-02-28 18:06:45 0000 *** Bug 168697 has been marked as a duplicate of this bug. *** 109992 2007-02-12 20:46 0000 reduce the noise level in the circular dependency debug output circular_deps.patch text/plain SW5kZXg6IGJpbi9lbWVyZ2UKPT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PQotLS0gYmluL2VtZXJnZQkocmV2aXNpb24gNTk1 NikKKysrIGJpbi9lbWVyZ2UJKHJldmlzaW9uIDU5NTcpCkBAIC0yMDU0LDYgKzIwNTQsMTUgQEAK IAkJCQkJc2VsZi5hbHRsaXN0KCkKIAkJCQlwcmludCAiISEhIEVycm9yOiBjaXJjdWxhciBkZXBl bmRlbmNpZXM6IgogCQkJCXByaW50CisJCQkJIyBSZWR1Y2UgdGhlIG5vaXNlIGxldmVsIHRvIGEg bWluaW11bSB2aWEgZWxpbWluYXRpb24gb2Ygcm9vdAorCQkJCSMgbm9kZXMuCisJCQkJd2hpbGUg VHJ1ZToKKwkJCQkJcm9vdF9ub2RlcyA9IG15Z3JhcGgucm9vdF9ub2RlcygKKwkJCQkJCWlnbm9y ZV9wcmlvcml0eT1EZXBQcmlvcml0eS5TT0ZUKQorCQkJCQlpZiBub3Qgcm9vdF9ub2RlczoKKwkJ CQkJCWJyZWFrCisJCQkJCWZvciBub2RlIGluIHJvb3Rfbm9kZXM6CisJCQkJCQlteWdyYXBoLnJl bW92ZShub2RlKQogCQkJCW15Z3JhcGguZGVidWdfcHJpbnQoKQogCQkJCXN5cy5leGl0KDEpCiAK