atomicity.h?

["John David Anglin" <dave at hiauly1 dot hia dot nrc dot ca>]

As a result of the recent atomic change, libstdc++ doesn't build
on hppa64-hp-hpux11.11.

The build fails with the following error:

/xxx/gnu/gcc-3.3/objdir/gcc/xgcc -shared-libgcc -B/xxx/gnu/gcc-3.3/objdir/gcc/ -
nostdinc++ -L/xxx/gnu/gcc-3.3/objdir/hppa64-hp-hpux11.11/libstdc++-v3/src -L/xxx
/gnu/gcc-3.3/objdir/hppa64-hp-hpux11.11/libstdc++-v3/src/.libs -B/opt/gnu64/gcc/
gcc-3.5.0/hppa64-hp-hpux11.11/bin/ -B/opt/gnu64/gcc/gcc-3.5.0/hppa64-hp-hpux11.1
1/lib/ -isystem /opt/gnu64/gcc/gcc-3.5.0/hppa64-hp-hpux11.11/include -isystem /o
pt/gnu64/gcc/gcc-3.5.0/hppa64-hp-hpux11.11/sys-include -I/xxx/gnu/gcc-3.3/objdir
/hppa64-hp-hpux11.11/libstdc++-v3/include/hppa64-hp-hpux11.11 -I/xxx/gnu/gcc-3.3
/objdir/hppa64-hp-hpux11.11/libstdc++-v3/include -I/xxx/gnu/gcc-3.3/gcc/libstdc+
+-v3/libsupc++ -O2 -g -O2 -g -O2 -fno-implicit-templates -Wall -W -Wwrite-string
s -Wcast-qual -fdiagnostics-show-location=once -ffunction-sections -fdata-sectio
ns -c ../../../../gcc/libstdc++-v3/src/misc-inst.cc  -fPIC -DPIC -o .libs/misc-i
nst.o
../../../../gcc/libstdc++-v3/src/misc-inst.cc:46: error: explicit instantiation 
of non-template `volatile int std::__Atomicity_lock'
../../../../gcc/libstdc++-v3/src/misc-inst.cc:46: error: expected `;' before '<'
 token

There seem to be a number of problems:

1) The instantiation at misc-inst.cc:46 is now in the wrong namespace.

2) There is a problem in os_defines.h as the explicit instantiation
   is needed on hppa64-hp-hpux11* (doh).

3) We only now seem to have the generic version of atomicity.h in
   the build hierarchy:

   -bash-2.05b$ find . -name atomicity.h -print
   ./hppa64-hp-hpux11.11/libstdc++-v3/include/bits/atomicity.h
   -bash-2.05b$ ll ./hppa64-hp-hpux11.11/libstdc++-v3/include/bits/atomicity.h
   lrwxr-xr-x   1 bin        bin             58 Feb 27 12:07 ./hppa64-hp-hpux11.11/libstdc++-v3/include/bits/atomicity.h -> /xxx/gnu/gcc-3.3/gcc/libstdc++-v3/include/bits/atomicity.h

   We used to have the cpu specific version in

   dave@hiauly6:~/gnu/gcc-3.4/objdir$ find . -name atomicity.h -print
   ./hppa-linux/libstdc++-v3/include/hppa-linux/bits/atomicity.h
   dave@hiauly6:~/gnu/gcc-3.4/objdir$ ll ./hppa-linux/libstdc++-v3/include/hppa-linux/bits/atomicity.h
   lrwxrwxrwx    1 dave     dave           67 Feb 25 21:09 ./hppa-linux/libstdc++-v3/include/hppa-linux/bits/atomicity.h -> /home/dave/gnu/gcc-3.4/gcc/libstdc++-v3/config/cpu/hppa/atomicity.h

I have fixes for the first two issues.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)