View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0003461 | libmicrohttpd | build system | public | 2014-06-30 20:26 | 2014-10-05 01:19 |
| Reporter | amatus | Assigned To | Christian Grothoff | ||
| Priority | normal | Severity | minor | Reproducibility | have not tried |
| Status | closed | Resolution | fixed | ||
| Product Version | 0.9.37 | ||||
| Target Version | 0.9.38 | Fixed in Version | 0.9.38 | ||
| Summary | 0003461: The microhttpd.h header file declares symbols that may not be present in the built library | ||||
| Description | The microhttpd.h header file declares MHD_create_post_processor but if the library is built without HAVE_POSTPROCESSOR these symbols will be missing from the library. A user of MHD_create_post_processor will not notice the problem until run time. Either MHD_create_post_processor (and symbols like it) need to be always defined, possibly by stub functions if the feature is disabled, and the user can handle the missing feature at run time, or the header file needs to be dynamically generated to not include the symbols, and the user can handle the missing feature at compile time. | ||||
| Tags | No tags attached. | ||||
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If we put in stubs, the user will also only notice the issue at runtime (just with a failure code when using the API, instead of a linker error). In practice, I suspect the result will be the same: a broken application. Changing the header similarly is not a universal answer, as obviously I can compile an application against one version of the API and then at runtime link against a different build of MHD. And library versioning won't help here, as that can and always will ONLY be valid if you do not muck with configure options to disable features. In general the documentation has always said that distributions MUST NOT disable features, and that those flags are ONLY for developers on embedded systems who know what they are doing. So really, a libmicrohttpd.so without the postprocessor is simply a broken build. |
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Gentoo managed to produce a broken libmicrohttpd.so. Perhaps a loud warning at the end of the configure script will get more attention than the documentation. |
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Fixed in SVN 33889. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2014-06-30 20:26 | amatus | New Issue | |
| 2014-07-01 10:14 | Christian Grothoff | Assigned To | => Christian Grothoff |
| 2014-07-01 10:14 | Christian Grothoff | Status | new => assigned |
| 2014-07-01 10:17 | Christian Grothoff | Note Added: 0008491 | |
| 2014-07-01 14:26 | amatus | Note Added: 0008493 | |
| 2014-07-01 19:32 | Christian Grothoff | Note Added: 0008495 | |
| 2014-07-01 19:32 | Christian Grothoff | Status | assigned => resolved |
| 2014-07-01 19:32 | Christian Grothoff | Fixed in Version | => 0.9.38 |
| 2014-07-01 19:32 | Christian Grothoff | Resolution | open => fixed |
| 2014-07-01 19:33 | Christian Grothoff | Target Version | => 0.9.38 |
| 2014-10-05 01:19 | Christian Grothoff | Status | resolved => closed |
