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Re: lib/47545: librt + static libc triggers linker warning
The following reply was made to PR lib/47545; it has been noted by GNATS.
From: "Valeriy E. Ushakov" <uwe%stderr.spb.ru@localhost>
Subject: Re: lib/47545: librt + static libc triggers linker warning
Date: Sat, 9 Feb 2013 03:02:11 +0400
On Fri, Feb 08, 2013 at 21:10:01 +0000, dholland%eecs.harvard.edu@localhost
> It seems that linking librt.so against libc_p.a (or for that matter,
> libc.a) causes this message:
> /usr/lib/libc.so.12: warning: warning: __findenv is an internal obsolete
> The easiest way to test is:
> ld -o /dev/null /usr/lib/librt.so /usr/lib/libc.a"
> The way this comes up in real life is:
> gcc -pg $(OBJS) -lrt -o $(PROG)
> as this pulls in librt.so and uses libc_p.a. (I would have expected it
> to implicitly pull in librt_p.a instead, but apparently it doesn't.)
> I don't see where this is coming from; there is no reference to
> __findenv in /usr/lib/librt.*, and no obvious chain of undefined
> symbols that seems to be related.
Check "FIXME" at src/external/gpl3/binutils/dist/bfd/elflink.c:3453
Looks like for normal objects .gnu.warning.SYMBOL is handled as
We should probably move the symbol to the file of its own.
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