Re: [FTBFS] PolyORB debug under kfreebsd
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Le 24/06/2012 22:42, Eugeniy Meshcheryakov a écrit :
> Hi,
>
> 24 ?????? 2012 ? 22:05 +0200 xavier grave ???????(-??):
>> I finally get time to investigate further : it looks like bug #642128.
>> But now this is the -Wl,-as-needed option that causes the error message.
>> If I compile without this flag, no more missing symbols. I didn't find
>> any bug related to this option in binutils. So I will open a new one
>> tomorrow as soon as I produce a minimal test case.
>
> Hi this could be bug in gnat or somewhere else that passes options in
> the incorrect order. Compare these two commands:
>
> eugen@loki:/tmp% gcc -o main main.o -Wl,--as-needed test1.so test2.so
> eugen@loki:/tmp% gcc -o main -Wl,--as-needed test1.so test2.so main.o
> main.o: In function `main':
> main.c:(.text+0xf): undefined reference to `test2'
> main.c:(.text+0x1b): undefined reference to `test1'
> collect2: error: ld returned 1 exit status
> eugen@loki:/tmp%
>
> The linker looks for symbols needed for objects that come _before_ the
> --as-needed option.
Thanks for the diagnostic, so this is a gcc related bug (not gnat
specific) ?
Can you send me your test case so I can fill a bug report or may be you
want to fill it yourself ?
I'll be happy to have your test case because I encounter similar
problems on armel architecture with polyorb build.
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