[ https://issues.apache.org/jira/browse/AVRO-1358?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Douglas Creager updated AVRO-1358: ---------------------------------- Attachment: 0001-Hide-Jansson-symbols-in-Avro-library.patch Good catch — I actually already have a patch lying around to fix this, which I had forgotten to merge into SVN. It uses the same GCC pragma that you suggest. > internal version of jansson exports the jansson symbols which collide with > json-c and jansson libraries > ------------------------------------------------------------------------------------------------------- > > Key: AVRO-1358 > URL: https://issues.apache.org/jira/browse/AVRO-1358 > Project: Avro > Issue Type: Bug > Components: c > Affects Versions: 1.7.4 > Environment: linux > Reporter: External Builds > Attachments: 0001-Hide-Jansson-symbols-in-Avro-library.patch > > > The 1.7.x version of AVRO includes an "internal" copy of jansson library, but > it also exports all of the jansson symbols which will collide with other > libraries. The symbol 'json_object_get' will collide with the json-c library > and all of the 'json_*' symbols collide with the external jansson library. > If you don't want to have an external dependency on 'jansson' then it seems > that the symbols will need to have a hidden visibility or some other > mechanism to keep them from being exported with the AVRO library. > As a temporary solution we have wrapped the internal jansson functions with > this so they are hidden: > #pragma GCC visibility push(hidden) > json_function() > #pragma GCC visibility pop > Many other solutions exist. I don't see that having an external dependency is > such a drawback, as many other open source packages have dependencies on > other open source packages, but any solution would be appreciated. > Thanks! -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira