[CC-ing dpkg] Am 17.02.2013 11:27, schrieb Jonathan Nieder: > tags 700737 + moreinfo > quit > > Hi Michael, > > Michael Gilbert wrote: > >> - >> (optional|c++)"WebCore::TextIterator::getLocationAndLengthFromRange(WebCore::Element*, >> WebCore::Range const*, unsigned int&, unsigned int&)@Base" 1.7.4 >> +#MISSING: 1.8.1-3.3# >> (optional|c++)"WebCore::TextIterator::getLocationAndLengthFromRange(WebCore::Element*, >> WebCore::Range const*, unsigned int&, unsigned int&)@Base" 1.7.4 > > From the dpkg-gensymbols(1) manpage: > > optional > A symbol marked as optional can disappear from the > library at any time and that will never cause > dpkg-gensymbols to fail. > > [...] >> @@ -213,6 +213,7 @@ >> _NPN_SetException@Base 1.3.10 >> _NPN_SetProperty@Base 1.3.10 >> _NPN_UTF8FromIdentifier@Base 1.3.10 >> + _ZdlPv@Base 1.8.1-3.3 > > c++filt tells me this is operator delete(void*). > > So presumably an entry > > (optional|c++)"operator delete(void*)" > > would suppress the build failure. Can you say a little more about > whether this is a gold bug? Do binaries built against versions of > libwebkit built with gold rely on this symbol and fail when run > against libwebkit built with ld.bfd? > > In C++, different lists of exported symbols based on the phase of moon > are completely normal, for example when template instantiation is > involved. So more details would be welcome.
I think that dpkg-gensymbols is misleading in that it treats all symbols exported as the same, not differentiating where they come from. Yes, you do have the option to mark a symbol as optional, however marking a symbol as coming from another library (libstdc++, Webkit:Core) would help too, but would require some work by the package maintainer too. Whether a template operator or another template from another library ends up as an exported symbol depends on the toolchain (different compiler/linker, different version, different optimization level), and that should not be encoded in the symbols files. Matthias -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
