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Re: [patch ping] libstdc++ testsuite cxxflags


On 05/17/2014 04:07 AM, Jonathan Wakely wrote:
On 17 May 2014 10:50, Jonathan Wakely wrote:
On 17 May 2014 01:16, Sandra Loosemore wrote:
It appears that this patch from last fall never got reviewed.

https://gcc.gnu.org/ml/gcc-patches/2013-10/msg02340.html

Can someone take a look?  I'll commit the patch on Cesar's behalf if it's
approved.

Libstdc++ patches need to go to the libstdc++ list, which this did, in
a separate mail that broke the threading:
https://gcc.gnu.org/ml/libstdc++/2013-10/msg00224.html
Then archives's inability to thread betweem months broke it again:
https://gcc.gnu.org/ml/libstdc++/2013-11/msg00113.html

I approved it then withdrew that approval:
https://gcc.gnu.org/ml/libstdc++/2013-11/msg00120.html
then the patch got revised:
https://gcc.gnu.org/ml/libstdc++/2013-11/msg00122.html

I'll have to refresh my memory about it.

Whoops, I totally missed that there was already a separate thread on the libstdc++ mailing list only. My bad. :-(

I think I'm happiest with the second version of the patch, in
https://gcc.gnu.org/ml/libstdc++/2013-11/msg00114.html

It does mean a change that might affect people using CXXFLAGS when
running the tests, so we might want to update
https://gcc.gnu.org/onlinedocs/libstdc++/manual/test.html where it says
"Or, just run the testsuites with CXXFLAGS set to -D_GLIBCXX_DEBUG or
-D_GLIBCXX_PARALLEL."

I came up with the attached patch for the wording change. I'm having trouble regenerating the HTML version of the manual, though; it looks like I have a different version of the DocBook stylesheets around that are introducing lots of extraneous changes, and I'm not sure what the "right" version is. :-S Any suggestions?

-Sandra
Index: libstdc++-v3/doc/xml/manual/test.xml
===================================================================
--- libstdc++-v3/doc/xml/manual/test.xml	(revision 210575)
+++ libstdc++-v3/doc/xml/manual/test.xml	(working copy)
@@ -478,9 +478,11 @@ runtest --tool libstdc++ --srcdir=/path/
     </para>
 
     <para>
-      Or, just run the testsuites with <constant>CXXFLAGS</constant>
-      set to <constant>-D_GLIBCXX_DEBUG</constant> or
-      <constant>-D_GLIBCXX_PARALLEL</constant>.
+      You can also run the testsuites by setting
+      <constant>CXXFLAGS</constant> in the environment.  In this case,
+      however, you should also make sure that <constant>CXXFLAGS</constant>
+      includes <constant>-g -O2</constant>, since some tests assume the
+      presence of these options.
     </para>
   </section>
 </section>

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