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http://bugs.exim.org/show_bug.cgi?id=1278 --- Comment #14 from Philip Hazel <[email protected]> 2013-12-27 12:54:32 --- On Fri, 27 Dec 2013, Dagobert Michelsen wrote: > basically all versions after the addition of -Wl,-i… are affected. > The issue with the name mangling is currently done by the assumption that only > g++ and assorted linkers accept -i on legacy function aliasing. Before going > deeper in the discussion I would like to know if the introduced function alias > is MacOS-specific as the comment suggests. If yes, I suggest shielding the > test > to the MacOS-platform where to my knowledge gcc is the only compiler anyway. I'm afraid I really don't know, especially as this appears to relate only to pcrecpp - and I'm just an old-fashioned C programmer. The C++ stuff is all contributed; unfortunately, at the present time there is no maintainer for the C++ bits of PCRE. I've been scanning the ChangeLog, and I've found this for version 7.7 (May 2008): 2. Applied Craig's patch to pcrecpp.cc to restore ABI compatibility with pre-7.6 versions, which defined a global no_arg variable instead of putting it in the RE class. (See also #8 below.) 8. Applied Craig's patch to pcrecpp.cc to fix a problem in OS X that was caused by fix #2 above. (Subsequently also a second patch to fix the first patch. And a third patch - this was a messy problem.) So it looks as if this issue is quite old now (even this bug is over a year old). It does also look as if it was a general patch that had to be modified to work with OS X. However, the ChangeLog mentions pcrecpp.cc and not configure.ac - but that may be a typo - aha! A check shows that the 7.6 configure.ac does not have this code, whereas the 7.7 configure.ac does, so the ChangeLog is inaccurate. But ... I don't really know what to do! We could just get rid of this old compatibility feature - it's now over 5 years old, though I have no doubt that somebody would be caught. Philip -- Configure bugmail: http://bugs.exim.org/userprefs.cgi?tab=email -- ## List details at https://lists.exim.org/mailman/listinfo/pcre-dev
