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Re: back to the Ada target vs target_alias issue wrt target pairs


> This is a followup on Thomas' proposal at
> ...

This commit (r202518) breaks bootstrap on x86_64-apple-darwin10 
(I have bootstrapped r202538 with the commit reverted):

/opt/gcc/build_w/./gcc/xgcc -B/opt/gcc/build_w/./gcc/ -B/opt/gcc/gcc4.9w/x86_64-apple-darwin10.8.0/bin/ -B/opt/gcc/gcc4.9w/x86_64-apple-darwin10.8.0/lib/ -isystem /opt/gcc/gcc4.9w/x86_64-apple-darwin10.8.0/include -isystem /opt/gcc/gcc4.9w/x86_64-apple-darwin10.8.0/sys-include    -c -g -O2 -m32  -W -Wall -gnatpg -nostdinc -m32  a-rttiev.adb -o a-rttiev.o
/var/folders/LW/LW1oufkMGIqlLpjYn45fBU+++TI/-Tmp-//ccr6B97z.s:5235:FATAL:Symbol L30$pb already defined.

The code compiles in 64 bit mode or with -O1 -m32. AFAICT the above
failure is the symptom that something went wrong earlier:
I get the same error if I compile with an older gcc instead of
gcc/xgcc.

TIA

Dominique


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