On 25/08/2015 04:28, Fernando Rodriguez wrote: > On Monday, August 24, 2015 9:31:38 PM Alan McKinnon wrote: >> Does anyone have an opinion to offer on bug 501468? >> >> https://bugs.gentoo.org/show_bug.cgi?id=501468 >> >> It's been annoying me for a week now with this message: >> >> !!! existing preserved libs: >>>>> package: www-client/firefox-40.0.2 >> * - /usr/lib64/firefox/libmozalloc.so >> * used by /usr/lib64/thunderbird/components/libdbusservice.so >> (mail-client/thunderbird-38.2.0) >> * used by /usr/lib64/thunderbird/components/libmozgnome.so >> (mail-client/thunderbird-38.2.0) >> * used by >> /usr/lib64/thunderbird/distribution/extensions/{e2fda1a4-762b-4020-b5ad- > a41df1933103}/components/libcalbasecomps.so >> (mail-client/thunderbird-38.2.0) >> * used by 4 other files >> >> >> Both Mozilla products ship this file: >> >> $ locate libmozalloc >> /usr/lib64/firefox/libmozalloc.so >> /usr/lib64/thunderbird/libmozalloc.so >> >> and according to preserved libs, thunderbird linked to the firefox copy. >> The only offered solution on the bug is to use a MASK variable, which >> seems to me an ugly hammer to swat a fly. >> >> I was wondering if there's a better way been developed in the last year. > > Actually, now I have a general idea of what's going on and that sounds like > an > acceptable solution but perhaps I could be better. This is what happens: > > 1. revdep-rebuild uses ldd to find breakage. It finds breakage in > libdbusservice.so because firefox uses tricks to preload the library from > it's > directory. > 2. revdep-rebuild find that thunderbird provides the library and thinks it > needs to be rebuild. (And wrongly tells you that firefox links against it). > > A better way would be: > > 1. same as step 1 above > 2. revdep-rebuild checks the package that provides the broken binary (in this > case the firefox package), if this package also provides the missing library > then it's safe to ignore the problem. > 3. same as step 2 above. > > Another solution is to make patch firefox to use RPATH so ldd can find the > labraries, this would also make prelink work better with firefox but it's > probably not ideal to mantain.
that does make sense. In my case, it's not revdep-rebuild causing problems, it's the preserved-rebuild message at the end of emerge -v At this level is there a difference? -- Alan McKinnon [email protected]
