https://sourceware.org/bugzilla/show_bug.cgi?id=17196
Nick Clifton <nickc at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
CC| |nickc at redhat dot com
--- Comment #1 from Nick Clifton <nickc at redhat dot com> ---
Hi Benjamin,
This is not a bug. It is a feature, or mis-feature if you prefer. The
problem is that the resource.o file in the resource.a archive only contains a
.rsrc section. It does not contain any symbols. The linker only pulls object
files out of an archive if they contain symbols that are needed by other
objects in the link. So when you link rsrcbug.o with resource.a there are no
unresolved symbols in rsrcbug.o and so nothing is pulled out of the archive.
There are a couple of possible workarounds for this problem:
* You could like with --whole-archive added before resource.a.
This will force the linker to include the resource.o file even
though nothing references it. Ie:
i686-pc-mingw32-gcc -m32 -mwin32 -mwindows -o rsrcbug-failed.exe \
-Wl,--whole-archive rsrcbug.o resource.a -Wl,--no-whole-archive
Of course this does negate one of the benefits of using archives -
namely that normally only the files that your program needs are
extracted from the library.
* You could add a symbol to resource.o and then reference this symbol
from rsrcbug.o. See the uploaded variation on your test archive
for an example of how this can be done.
Cheers
Nick
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