libstdc++ testsuite failure on AIX

[Mark Mitchell]

David Edelsohn wrote:
> 	With help from Ian Lance Taylor on IRC, the problem appears to be
> due to the change from building testsuite_abi.cc with Make to building it
> in DejaGNU.  Make cared about the exit code, but DejaGNU fails if any
> unexpected output is produced.  On AIX, building testsuite_abi.cc produces
> an expected warning:
> 
> /farm/dje/src/src/libstdc++-v3/testsuite/testsuite_abi.cc:1: warning: -ffunction-sections may affect debugging on some targets

Yes, that's very plausible.  The typical DejaGNU way (rightly or 
wrongly) of checking for errors is checking for any output from the 
compiler.

> Daniel Jacobowitz suggests adding "-w" to the options, which does suppress
> the warning when tested manually.

I shall add post a patch to add -w.

Thanks,

-- 
Mark Mitchell
CodeSourcery, LLC
mark@codesourcery.com
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