PATCH: Document running V3 tests on installed compiler

[Mark Mitchell]

Joseph S. Myers wrote:
> On Wed, 4 May 2005, Mark Mitchell wrote:
> 
> 
>>+ <p>
>>+ You can run the tests with a compiler and library that have already
>>+ been installed.  Make sure that the compiler (e.g., <code>g++</code>)
>>+ is in your <code>PATH</code>.  If you are using shared libraries, then
>>+ you must also ensure that the directory containing the shared version
>>+ of libstdc++ is in your <code>LD_LIBRARY_PATH</code>, or equivalent.
>>+ If your GCC source tree is at <code>/path/to/gcc</code>, then you can
>>+ run the tests as follows:
>>+ <pre>
>>+ runtest --tool libstdc++ --srcdir=/path/to/gcc/libstdc++-v3/testsuite
>>+ </pre>
>>+ </p>
> 
> 
> Should this say to use runtest in an empty temporary directory because it 
> will create many temporary files and not necessarily remove all of them 
> afterwards?  (I don't know whether it is safe to share that directory 
> between simultaneous runs of the libstdc++, g++, gcc etc. testsuites.)

It is safe to share between runs, although probably not (due to 
testsuite lameness) not simultaneous runs.  I'll add some additional 
verbiage.

-- 
Mark Mitchell
CodeSourcery, LLC
mark@codesourcery.com
(916) 791-8304