[Bug libstdc++/30264] libstdc++-v3 compile error - conflicts with previous using declaration

["dave at hiauly1 dot hia dot nrc dot ca" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #2 from dave at hiauly1 dot hia dot nrc dot ca  2007-01-08 01:07 -------
Subject: Re:  libstdc++-v3 compile error - conflicts with previous using
declaration

> Dave, can you have a look to this PR? AFAIK, you are regularly reporting
> succesful builds for this target...

See a couple of issues but the exact cause isn't clear to me:

1) It's not obvious from the configure command that the user
   is using GNU as.  Use of the HP assembler isn't supported in
   4.1 and later.  Today, Joe Buck suggested that I check the
   status of building libstdc++ using HP as in 4.0.  Turns out
   this is broken, but not for the same reasons as with 3.4.
   I'm testing a patch but building with HP as is almost never
   tested.  Also, debugging and c++ is crippled using HP as.

2) "make" was used instead of "make bootstrap".  It's unclear
   whether this is a factor.

3) I have the libm patch PHSS_24207 installed, as well as the latest
   libc and header patches.  The user should also install the latest
   HP linker patch.  Weak support is broken with the linker originally
   shipped with 11.00 and 11.11.

The problem also might be a header fix issue.

I've built 4.1.1 successfully on 11.11, 11.00 and 10.20.  The testresults
should be in gcc-testresults archive.  The reports shows the configure
command.

Dave


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30264