[patch, libstdc++] fix TCL error in abi.exp

[Jeff Law]

On 05/16/14 13:53, Sandra Loosemore wrote:
> As noted in PR 23867, the libstdc++ ABI testsuite doesn't work for
> installed compiler testing.  There is some logic in abi.exp to check for
> the presence of the required bits and skip these tests if they're not
> there, but before it gets that far it's hitting a TCL error:
>
> ERROR: can't read "baseline_subdir_switch": no such variable
>      while executing
> "eval exec $cxx $baseline_subdir_switch"
>      invoked from within
> "set baseline_subdir "[eval exec $cxx $baseline_subdir_switch]""
> ...
>
> This patch moves the offending reference to $baseline_subdir_switch
> after the check for missing bits instead of before.  OK to commit?
>
> -Sandra
>
>
> 2014-05-16  Iain Sandoe  <iain@codesourcery.com>
>          Sandra Loosemore  <sandra@codesourcery.com>
>
>          libstdc++-v3/
>          * testsuite/libstdc++-abi/abi.exp: Defer setting of
> baseline_subdir
>          until after checking that the test is eligible to be run.
OK.
Jeff