I *really* need help PLEASE - buildworld failing on mkdep libstdc++can't find unwind.h but it *is* there

[Garance A Drosihn]

At 2:41 PM -0600 4/12/04, P.D. Seniura wrote:
>Chuck Swiger wrote:
>  > It is not clear to me what problem you are trying to solve by
>  > the activities you are pursuing: perhaps you ought to install
>  > 5.2.1 or 4.9 from a .iso image and get on with other tasks,
>  > and revisit the issue of recompiling world later?
>
>Nutshell:  I have gone back to using the system gcc.  But now
>we are not able compile libstdc++ and other related pieces; the
>headers _are_ there as mentioned in the earlier msg.  Just about
>every other thing under world _does_ compile & link properly -- it
>is just the libstdc-type stuff.  ...
>
>I don't know what else to check on, I'm needing another pair
>of eyes.  ;)

I am not a gcc or gcc++ expert.  I can offer the following
observation, but don't ask me what it means.  gcc is a major
project in its own right, and I do not know the ins-and-outs
of it.

In your logfile, you have the sequence:

===> gnu/lib/libstdc++
sed -e ...etc... > strstream-fixed.cc
rm -f .depend
mkdep -f .depend -a    -DIN_GLIBCPP_V3 -DHAVE_CONFIG_H
       -I/src/gnu/lib/libstdc++
       -I/src/gnu/lib/libstdc++/../../../contrib/libstdc++/libsupc++
       -I/src/gnu/lib/libstdc++/../../../contrib/gcc
       /src/gnu/lib/libstdc++/../../../contrib/libstdc++/libmath/nan.c
       ...etc...
mkdep -f .depend -a
       /src/gnu/lib/libstdc++/../../../contrib/libstdc++/src/bitset.cc
       ...etc...

The second one does not have the -DIN_GLIBCPP_V3 -DHAVE_CONFIG_H
or the three settings of -I.  In a logfile of one of my own
buildworlds, both of those mkdep's seem to start out with the same
set of options.  I expect the missing options are significant, but
I do not know why they would be missing, or what to do about them.

-- 
Garance Alistair Drosehn            =   gad at gilead.netel.rpi.edu
Senior Systems Programmer           or  gad at freebsd.org
Rensselaer Polytechnic Institute    or  drosih at rpi.edu