Erik van Pienbroek schreef op do 23-05-2013 om 23:29 [+0200]:
> Hi,
>
> During review of one of our Fedora packages we noticed an unexpected
> change in behavior in recent mingw-w64 trunk snapshots. We noticed that
> several libraries which were built against recent mingw-w64 trunk
> snapshots suddenly started to export the symbols
> _InterlockedCompareExchange and InterlockedCompareExchange@12 in their
> shared libraries.
Here's a really minimal testcase which demonstrates the problem:
$ touch foo.c
$ i686-w64-mingw32-gcc -shared foo.c -o foo.dll -Wl,--export-all-symbols
$ i686-w64-mingw32-objdump -p foo.dll
<snip>
[Ordinal/Name Pointer] Table
[ 0] InterlockedCompareExchange@12
[ 1] _InterlockedCompareExchange
<snip>
So even when an empty library is built it will export the two
InterlockedCompareExchange symbols..
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